Pesticide Dilution Calculator – Calculate the Right Pesticide-to-Water Ratio
Mix pesticides safely and accurately with our Pesticide Dilution Calculator. Enter the required concentration, total spray volume, and product label rate to get the exact amount of concentrate to add to water for effective pest control.
Check product label for active ingredient %
Typical: 0.5-2% for most applications
Dilution Results
Enter values and click Calculate to see results
Dilution Calculation Formula
Example: To make 100L of 1% solution from 41% concentrate:
V1 = (1 × 100) / 41 = 2.44L or 2440mL of concentrate
Water = 100L - 2.44L = 97.56L
Check product concentration
Find the active ingredient percentage on the pesticide label (e.g., 41% for glyphosate).
Enter target concentration and volume
Input the desired spray concentration (usually 0.5-2%) and total spray volume needed.
Get mixing instructions
Receive exact amounts of concentrate and water needed, plus step-by-step mixing guidance.
Effective pest control
Correct concentration ensures the pesticide works as intended without under-dosing.
Prevents crop damage
Over-concentrated sprays can burn plants and damage foliage.
Cost savings
Avoid wasting expensive concentrate by mixing only what you need.
Environmental safety
Proper dilution reduces chemical runoff and environmental impact.
Regulatory compliance
Follow label rates to stay within legal application requirements.
How do I calculate pesticide dilution ratio?
Use C1V1 = C2V2. For example, to make 10L of 1% spray from 50% concentrate: V1 = (1 × 10) / 50 = 0.2L or 200mL of concentrate.
What is a typical pesticide dilution rate?
Most foliar sprays use 0.5-2% concentration. Soil drenches may use 0.1-0.5%. Always check the product label for specific rates.
How much water do I add to pesticide concentrate?
Subtract the concentrate volume from your total spray volume. For 100L total with 2L concentrate, add 98L of water.
Can I mix different pesticides together?
Only if the labels allow tank mixing. Some combinations cause chemical reactions or reduce effectiveness. Test compatibility first.
What PPE should I wear when mixing pesticides?
Wear chemical-resistant gloves, long sleeves, long pants, closed shoes, safety goggles, and a mask or respirator as specified on the label.
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