What does this calculator do well?

It handles straight dilution planning with C1V1 = C2V2 inside one compatible concentration basis. You enter stock concentration, target concentration, and final mixed volume, and it returns the stock volume, solvent top-up, and dilution factor.

Why can I not mix M, mg/mL, percent, ppm, and x-fold freely?

Those bases are not universally interchangeable without extra chemistry data such as molar mass, density, or an exact protocol definition. This calculator stays disciplined instead of inventing a conversion it cannot justify.

What does final volume mean here?

Final volume means the total mixed volume after dilution. If you ask for 250 mL final volume, the stock solution and solvent together should add up to 250 mL.

When should I use manual judgment instead of trusting the number blindly?

Use manual judgment when your protocol depends on non-additive mixing, reagent-specific behavior, density-based conversions, activity corrections, or other chemistry outside a simple dilution setup.

Solution Dilution Calculator

Work out how much stock solution and solvent to mix for a target concentration and final batch size using C1V1 = C2V2, without pretending different chemistry bases are interchangeable.

How It Works

Formula

C_1 \cdot V_1 = C_2 \cdot V_2

V_1 = \frac{C_2 \cdot V_2}{C_1}

V_{solvent} = V_2 - V_1

DF = \frac{C_1}{C_2} = \frac{V_2}{V_1}

Choose one concentration basis, enter the stock concentration, target concentration, and final mixed volume, and the calculator rearranges C1V1 = C2V2. It then subtracts the stock volume from the final volume to show the solvent top-up.

The calculator first rescales the stock concentration and target concentration into one internal unit within the chosen basis family, then applies C1 x V1 = C2 x V2 to solve for the stock volume V1. Solvent volume is computed as final volume minus stock volume. Final volume means the target mixed volume after dilution, not the amount of solvent by itself.

Frequently Asked Questions

Related Calculators

Density Calculator

Compute density, mass, or volume from two known values

Ideal Gas Law Calculator

Solve any one of P, V, T, or n from the other three

Volume Converter

Convert liters, gallons, cups, and cubic units.

Scientific Calculator

Evaluate math expressions with advanced functions

Solution Dilution Calculator

How It Works

Frequently Asked Questions

Related Calculators

All calculators

Ready to Calculate?