Number Tools

Roman Numeral Converter

Convert between numbers and Roman numerals. Historical notation, validates input.

Number To Words Converter

Convert numbers to written English. Integers, decimals, currency. US/UK formats.

Binary Decimal Hex Converter

Convert between binary, decimal, hex, octal instantly. Essential for programmers.

Number To Time Converter

Convert decimal hours to hours/minutes. For payroll, scheduling, time tracking.

Scientific Notation Converter

Convert to/from scientific notation. Large/small numbers, engineering notation.

Unit Converter

Convert digital storage, metric prefixes, measurements. Real-time updates.

Phone Number Formatter

Format digits as phone numbers. Validate, extract from text, create call links.

Factorial Calculator

Calculate factorials, permutations, combinations, double factorials, subfactorials.

Currency Formatter

Format numbers as currency. US, Europe, UK, Japan. Adjust symbols, separators.

Number Base Calculator

Do math in binary, hex, octal, decimal. Add, subtract, multiply, divide.

Divisibility Tester

Test if numbers divide evenly. Learn divisibility rules for 2, 3, 5, 9, 10, 11.

Gcf Calculator

Find GCF and LCM quickly. Essential for simplifying fractions, math problems.

Number Pattern Generator

Generate number sequences. Arithmetic, geometric, squares, cubes, Fibonacci, primes.

Number Sequence Solver

Find the next number in a sequence. Analyzes patterns, predicts what comes next.

Number Sorter

Sort numbers ascending/descending. Remove duplicates, calculate stats.

Palindrome Number Checker

Check if numbers are palindromes. See reverse-and-add steps, nearby palindromes.

Percentage Calculator

Solve percentage problems. Discounts, tips, tax, interest, percentage changes.

Prime Number Checker

Check if numbers are prime. Shows divisors for composites, finds neighboring primes.

Random Number Generator

Generate random numbers. Set range, quantity, get truly random results.

Rounding Calculator

Round to any precision. Standard, banker's, custom methods. Decimals, integers.