Dilution Calculator for Target Concentration

Calculate stock solution and water amounts needed to prepare a target concentration.

Result

Stock solution: 14.29 L

Water required: 35.71 L

How to Use This Tool

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Step 1: Enter Stock Concentration

Input the percentage concentration of your stock solution (the concentrated source liquid).

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Step 2: Set Target Concentration

Specify the desired final concentration you want to achieve after dilution.

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Step 3: Define Final Volume

Enter the total volume you need to prepare at the target concentration.

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Step 4: Get Dilution Results

Instantly see the exact stock solution and water amounts needed for your dilution.

Example Results

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Sanitizer Dilution

70% stock to 20% target, 50L final volume

Result
14.29L stock, 35.71L water
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Acid Solution

50% stock to 10% target, 25L final volume

Result
5L stock, 20L water
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Cleaning Solution

40% stock to 15% target, 100L final volume

Result
37.5L stock, 62.5L water
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Flavor Dilution

100% stock to 5% target, 20L final volume

Result
1L stock, 19L water

Frequently Asked Questions

How does this calculator determine dilution amounts?

The calculator uses the dilution formula C1V1 = C2V2, where C1 is stock concentration, V1 is stock volume needed, C2 is target concentration, and V2 is final volume. It automatically calculates the exact amounts of stock solution and water needed.

Can I use this for food safety applications?

This calculator provides accurate dilution calculations for various applications including sanitizers and cleaning solutions. For critical food safety applications, always verify results and follow manufacturer guidelines for specific products.

What if my stock concentration is lower than my target?

The calculator will show that dilution is not possible since you cannot increase concentration by adding water. You'll need a higher concentration stock solution to achieve your target.

How accurate are these calculations?

The calculations are mathematically precise based on the inputs provided. For practical applications, consider measurement precision of your equipment and temperature effects that may affect volume.

Can I use different units besides liters?

The calculator uses liters for volume display, but you can input any volume unit as long as you're consistent. The ratio between stock and water remains the same regardless of units.