Math Tools
173+ free online math tools and calculators. Solve equations, convert units, visualize data, and explore mathematics – all in your browser.
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All Math Tools
A comprehensive collection of 173 math tools and calculators organized by category
2D Function Plotter (y = f(x))
Plots any 2D mathematical function y = f(x) on an interactive coordinate plane
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Absolute Value Calculator
Returns the absolute value (magnitude) of any real number or expression
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Age Calculator
Calculates exact age in years, months, and days from a birthdate to today or a specified date
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Angle Calculator (in triangle)
Calculates missing angles in a triangle given other angles or side lengths
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Angle of Elevation / Depression Solver
Calculates the angle of elevation or depression given height and horizontal distance, or vice versa
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Annuity Calculator
Calculates the payment, present value, or future value of an annuity
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Antilogarithm Calculator
Calculates the antilogarithm (inverse of logarithm) for any base and given log value
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Area Calculator (Circle, Rectangle, Triangle, etc.)
Calculates the area of common 2D shapes including circle, rectangle, triangle, trapezoid, and more
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Area Converter
Converts between area units including square meters, square feet, acres, hectares, and more
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Arithmetic Sequence Calculator
Calculates terms, common difference, and partial sums of arithmetic sequences
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Armstrong Number Checker
Checks if a number is an Armstrong (narcissistic) number where the sum of digits raised to the power of digit count equals the number
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Average / Mean Calculator
Computes the arithmetic mean of a set of numbers instantly
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Bar Chart Builder
Creates bar charts from categorical data to compare values across categories
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Big Number Calculator
Performs arithmetic operations on very large integers beyond normal calculator limits
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Binary Addition / Subtraction
Performs binary number addition and subtraction with step-by-step working
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Binomial Expansion Calculator
Expands binomial expressions (a + b)^n using the binomial theorem for any power n
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Bitwise Operations Calculator
Performs bitwise AND, OR, XOR, NOT, and shift operations on integers
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Boolean Expression Evaluator
Evaluates Boolean expressions for given truth values of variables
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Box Plot Generator
Creates a box-and-whisker plot from a dataset showing five-number summary and outliers
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Break-Even Point Calculator
Calculates the break-even point in units and revenue for a business given fixed costs, variable costs, and selling price
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Cartesian Product Calculator
Calculates the Cartesian product of two sets, listing all ordered pairs
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Check Divisibility by 2–20
Checks divisibility of a number by all integers from 2 to 20 using divisibility rules
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Circle Calculator (radius, diameter, area, circumference)
Calculates all properties of a circle including radius, diameter, area, and circumference from any one measurement
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Combination Calculator (nCr)
Calculates the number of combinations of r items chosen from n items
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Complement of a Set
Calculates the complement of a set with respect to a given universal set
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Compound Interest Calculator
Calculates compound interest and total amount for various compounding periods
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Confidence Interval Calculator
Calculates confidence intervals for population means given sample statistics
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Coordinate Geometry Calculator
Performs coordinate geometry calculations including distance, midpoint, slope, and line equations
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Coordinate Plane Plotter
Plots points, lines, and shapes on an interactive coordinate (Cartesian) plane
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Correlation Coefficient Calculator
Calculates the Pearson correlation coefficient (r) between two datasets to measure linear relationship
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Currency Exchange Calculator (static rates)
Converts amounts between major world currencies using static exchange rates
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Data Storage Converter (KB, MB, GB, TB)
Converts between digital storage units including bytes, KB, MB, GB, TB, and PB
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Date Arithmetic (add/subtract days)
Adds or subtracts a number of days, weeks, or months to/from a given date
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Date Difference Calculator
Calculates the number of days, weeks, months, and years between two dates
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Day of the Week Calculator
Determines what day of the week any given date falls on
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Days Until / Since Calculator
Calculates how many days until or since a specific date from today
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Decimal to Fraction Converter
Converts any decimal number to its equivalent fraction in simplified form
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Definite Integral Calculator (numerical)
Numerically evaluates definite integrals over a specified interval
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Degrees ↔ Radians Converter
Converts angle measurements between degrees and radians instantly
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Derivative Calculator (basic rules)
Calculates derivatives of functions using basic differentiation rules including power, product, quotient, and chain rules
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Dice Roller Simulator
Simulates rolling one or more dice of various types (d4, d6, d8, d10, d12, d20) and totals results
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Difference of Sets
Calculates the difference between two sets (A - B), returning elements in A not in B
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Digit Sum Calculator
Calculates the sum of all digits in a number, with iterative digital root option
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Discount & Markup Calculator
Calculates the discount price or markup price of an item given percentage values
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Distance Between Two Points
Calculates the straight-line distance between two coordinate points in 2D or 3D space
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Divisibility Checker
Checks whether a given number is divisible by another number and shows the divisibility rule used
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Eigenvalue Calculator (2x2, 3x3)
Finds the eigenvalues of 2x2 and 3x3 matrices by solving the characteristic polynomial
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EMI / Loan Calculator
Calculates monthly EMI payments for loans based on principal, interest rate, and tenure
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Estimation Rounding Tool
Estimates and rounds numbers to aid in quick mental math approximations
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Euler's Totient Function
Calculates Euler's totient function φ(n), counting integers up to n that are coprime to n
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Expand & Simplify Binomials
Expands and simplifies binomial expressions like (a + b)² or (x + y)(x - y)
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Exponent Calculator
Computes the result of raising a base number to any given power or exponent
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Factor Calculator (integers)
Finds all factors of a given integer and lists them in ascending order
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Factorial Calculator
Calculates the factorial of any non-negative integer (n!)
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Factors List Generator
Generates and lists all factors of a given number in sorted order
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Fibonacci Sequence Generator
Generates the Fibonacci sequence up to n terms or finds the nth Fibonacci number
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Five Number Summary Calculator
Calculates the five-number summary of a dataset: minimum, Q1, median, Q3, and maximum
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Fraction Calculator
Calculates addition, subtraction, multiplication, and division of fractions and mixed numbers with simplified results
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Fraction to Decimal Converter
Converts any fraction or mixed number to its decimal equivalent
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Frequency Distribution Table
Generates a frequency distribution table from raw data showing frequency, relative frequency, and cumulative frequency
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Future Value Calculator
Calculates the future value of an investment given present value, interest rate, and time period
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GCD / HCF Calculator
Finds the Greatest Common Divisor (GCD) or Highest Common Factor (HCF) of two or more numbers
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Geometric Mean Calculator
Calculates the geometric mean of a set of numbers
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Geometric Sequence Calculator
Calculates terms, common ratio, and partial sums of geometric sequences
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Grade / GPA Calculator
Calculates GPA and overall grade from individual subject scores and credit hours
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Gradient / Slope at a Point
Calculates the gradient (derivative value) of a function at a specific point
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Harmonic Mean Calculator
Calculates the harmonic mean of a dataset, the reciprocal of the arithmetic mean of reciprocals
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Harmonic Series Calculator
Calculates partial sums of the harmonic series up to n terms
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Histogram Generator
Creates a histogram from a dataset by dividing data into bins and plotting frequency
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Identity Matrix Generator
Generates an identity matrix of any given size n×n
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Inequality Solver (linear)
Solves linear inequalities and displays the solution set on a number line
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Intersection of Sets
Calculates the intersection of two or more sets, returning only common elements
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Inverse Trig Calculator
Calculates inverse trigonometric values (arcsin, arccos, arctan) returning angles in degrees or radians
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Law of Cosines Calculator
Applies the Law of Cosines to find missing sides or angles in any triangle
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Law of Sines Calculator
Applies the Law of Sines to find missing sides or angles in any triangle
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LCM Calculator
Calculates the Least Common Multiple (LCM) of two or more numbers
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Leap Year Checker
Determines whether a given year is a leap year or not
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Length Converter
Converts between length units including meters, feet, inches, kilometers, miles, and more
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Limit Calculator (basic)
Evaluates limits of functions as the variable approaches a value or infinity
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Line Graph Builder
Creates line graphs from datasets to visualize trends and changes over time
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Linear Equation Solver (ax + b = c)
Solves linear equations of the form ax + b = c for the unknown variable x
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Linear Regression Calculator
Performs linear regression analysis on two-variable data and provides the regression equation and R² value
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Logarithm Calculator
Calculates the logarithm of a number for any base including natural log and log base 10
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Logic Gate Simulator
Simulates digital logic gates (AND, OR, NOT, NAND, NOR, XOR) with visual input/output
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Long Division Calculator (with steps)
Performs long division showing each step of the division process including quotient and remainder
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Long Multiplication (with steps)
Performs long multiplication of large numbers showing each step of the process
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Magic Square Generator
Generates magic squares of any odd or even order where all rows, columns, and diagonals sum to the same value
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Matrix Addition / Subtraction
Adds or subtracts two matrices of compatible dimensions element by element
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Matrix Determinant
Calculates the determinant of square matrices (2x2, 3x3, 4x4) with full expansion shown
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Matrix Inverse
Calculates the inverse of a square matrix if it exists, using row reduction or adjugate method
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Matrix Multiplication
Multiplies two matrices together showing the complete product matrix with steps
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Matrix Transpose
Computes the transpose of any matrix by swapping its rows and columns
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Mean, Median, Mode Calculator
Calculates the mean, median, and mode of any dataset with full statistical breakdown
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Midpoint Calculator
Finds the midpoint of a line segment given the coordinates of its two endpoints
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Mixed Number Calculator
Performs arithmetic operations (add, subtract, multiply, divide) on mixed numbers
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Modular Arithmetic Calculator
Performs modular arithmetic operations including addition, subtraction, multiplication, and exponentiation under a modulus
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Normal Distribution Calculator
Calculates probabilities and percentiles for a normal distribution given mean and standard deviation
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nth Term Finder
Finds the nth term of arithmetic or geometric sequences given initial values
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Number Base Converter (Binary, Octal, Hex, Decimal)
Converts numbers between binary, octal, decimal, and hexadecimal number systems
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Number Line Visualizer
Displays numbers and ranges on an interactive number line visualization
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Number Sorter
Sorts a list of numbers in ascending or descending order
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Number Word Converter (e.g. 1234 → one thousand...)
Converts any number into its full English word form
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Order of Operations (BODMAS) Solver
Evaluates math expressions using the correct order of operations (BODMAS/PEMDAS) with step-by-step breakdown
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Outlier Detector (IQR method)
Identifies outliers in a dataset using the Interquartile Range (IQR) method
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Palindrome Number Checker
Checks whether a given number reads the same forwards and backwards
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Pascal's Triangle Generator
Generates Pascal's Triangle up to any number of rows
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Percentage Calculator
Calculates percentages, percentage increase/decrease, and what percent one number is of another
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Percentage Change Calculator
Calculates the percentage increase or decrease between two values
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Perfect Number Checker
Determines whether a given number is a perfect number (sum of its divisors equals the number)
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Perimeter Calculator
Calculates the perimeter of common 2D shapes including rectangles, triangles, circles, and polygons
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Permutation Calculator (nPr)
Calculates the number of permutations of r items chosen from n items
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Pi (π) Digit Generator
Generates and displays the digits of Pi (π) up to a specified number of decimal places
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Pie / Bar Chart Generator
Creates pie charts and bar charts from user-provided categorical data
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Pie Chart Builder
Creates pie charts from proportional data to show part-to-whole relationships
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Polygon Interior Angle Sum
Calculates the sum of interior angles of any polygon given the number of sides
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Polynomial Evaluator
Evaluates a polynomial expression for a given value of the variable
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Power Set Generator
Generates all subsets (power set) of a given set
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Present Value Calculator
Calculates the present value of a future sum given discount rate and time period
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Pressure Converter
Converts between pressure units including pascals, bar, psi, atm, mmHg, and more
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Prime Factorization
Breaks down any integer into its prime factors and displays the prime factor tree
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Prime Number Checker
Determines whether a given integer is a prime number or composite number
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Probability Calculator
Calculates basic probability, complementary probability, and conditional probability for events
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Profit & Loss Calculator
Calculates profit or loss amount and percentage given cost price and selling price
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Pythagorean Theorem Calculator
Solves for any side of a right triangle using the Pythagorean theorem (a² + b² = c²)
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Quadratic Equation Solver
Solves quadratic equations of the form ax² + bx + c = 0 using the quadratic formula, showing all roots
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Random Number Generator
Generates random numbers within a user-specified range
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Rank of a Matrix
Determines the rank of a matrix using row reduction to row echelon form
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Ratio Calculator
Simplifies ratios and solves for missing values in proportional ratio equations
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Reverse a Number
Reverses the digits of any given integer
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Riemann Sum Calculator
Approximates the area under a curve using left, right, midpoint, or trapezoidal Riemann sums
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Right Triangle Calculator
Calculates all sides and angles of a right triangle given two known values
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ROI Calculator
Calculates Return on Investment (ROI) percentage for any investment
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Roman Numeral Converter
Converts integers to Roman numerals and Roman numerals back to integers
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Rounding Calculator
Rounds numbers to a specified number of decimal places or significant figures
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Sales Tax / VAT Calculator
Calculates the sales tax or VAT amount and total price including tax for any purchase
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Scalar Multiplication
Multiplies every element of a matrix by a scalar constant
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Scatter Plot Generator
Creates scatter plots from two-variable datasets to visualize relationships between variables
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Scientific Calculator
An advanced calculator supporting trigonometric functions, logarithms, exponents, and complex scientific computations
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Scientific Notation Converter
Converts numbers between standard form and scientific notation and vice versa
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Significant Figures Calculator
Counts or rounds a number to the correct number of significant figures
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Simple Interest Calculator
Calculates simple interest, principal, rate, or time using the SI formula
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Simplify Expression (basic)
Simplifies basic algebraic expressions by combining like terms and applying arithmetic rules
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Slope Calculator
Calculates the slope (gradient) of a line given two points or an equation
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Speed Converter
Converts between speed units including mph, km/h, m/s, knots, and more
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Square Root Calculator
Calculates the square root of any positive number with high precision
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Standard Calculator
A basic calculator that performs addition, subtraction, multiplication, and division operations
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Standard Deviation & Variance
Calculates standard deviation and variance for a dataset in both population and sample forms
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Subset Checker
Checks whether one set is a subset or proper subset of another set
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Sudoku Validator
Validates whether a completed Sudoku grid follows all the rules correctly
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Sum of Arithmetic Series
Calculates the sum of an arithmetic series using the arithmetic series sum formula
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Sum of Geometric Series
Calculates the sum of a geometric series including infinite geometric series
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Surface Area Calculator
Calculates the surface area of 3D shapes including cube, sphere, cylinder, cone, and more
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System of 2 Linear Equations Solver
Solves a system of two linear equations with two unknowns using substitution or elimination method
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Tangent Line Calculator
Finds the equation of the tangent line to a function at a given point
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Taylor Series Approximation
Generates the Taylor or Maclaurin series expansion of a function up to n terms
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Temperature Converter
Converts temperatures between Celsius, Fahrenheit, and Kelvin scales
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Time Converter
Converts between time units including seconds, minutes, hours, days, weeks, months, and years
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Time Duration Calculator
Calculates the duration between two times showing hours, minutes, and seconds elapsed
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Tip Calculator
Calculates tip amount and total bill including tip for any service, with bill splitting option
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Trace of a Matrix
Calculates the trace of a square matrix by summing the main diagonal elements
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Triangle Solver (SSS, SAS, ASA, AAS)
Solves all sides and angles of a triangle given SSS, SAS, ASA, or AAS configurations
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Trig Function Calculator (sin, cos, tan, etc.)
Calculates values of trigonometric functions (sin, cos, tan, csc, sec, cot) for any angle
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Trigonometric Identity Verifier
Verifies whether a given trigonometric identity is true by simplifying both sides
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Truth Table Generator
Generates truth tables for any logical expression with any number of variables
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Two's Complement Calculator
Converts integers to two's complement binary representation and vice versa
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Union of Sets
Calculates the union of two or more sets, returning all unique elements
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Unit Circle Reference Tool
Displays the unit circle with all key angle values, coordinates, and trig function values
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Venn Diagram Tool (2-3 sets)
Creates Venn diagrams for 2 or 3 sets and calculates union, intersection, and differences
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Volume Calculator (Cube, Sphere, Cylinder, Cone, etc.)
Calculates the volume of common 3D shapes including cube, sphere, cylinder, cone, and pyramid
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Volume Converter
Converts between volume units including liters, gallons, cubic meters, milliliters, and more
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Weight / Mass Converter
Converts between weight and mass units including kilograms, pounds, grams, ounces, and tons
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Weighted Average Calculator
Calculates the weighted average of values given their respective weights
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Z-Score Calculator
Calculates the Z-score (standard score) of a data point given the mean and standard deviation
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Common Use Cases
Homework & Study
Solve math problems step-by-step and understand concepts better with detailed explanations.
Engineering
Perform complex calculations for physics, mechanics, and electrical engineering problems.
Finance
Calculate loans, investments, interest rates, and other financial metrics accurately.
Data Analysis
Create charts, graphs, and visualizations to understand data patterns and trends.
Unit Conversion
Convert between different measurement systems for science, cooking, and travel.
Professional Work
Quick calculations and conversions for architects, contractors, and analysts.