Chemistry
Mixing Ratio Calculator
Predict the strength of a blend made from two solutions of different concentrations.
Your inputs
Change any value to update the result instantly.
Concentration of the blend
20 %
Total quantity
300 mL
Share from solution 1
66.67 %
Share from solution 2
33.33 %
Reading
The blend sits between 10% and 40%
Both quantities must be the same kind — two volumes or two masses. Mixing a volume with a mass needs the density first.
What this calculator does
Predicts the concentration of a blend made from two solutions of known strength and quantity.
What your result means
The quantity-weighted average strength, which always lies between the two starting strengths.
Formula and working
C_mix = (C₁Q₁ + C₂Q₂) ÷ (Q₁ + Q₂)
- 1
Collect the inputs
Concentration of solution 1 (C₁) = 10 %; Quantity of solution 1 (Q₁) = 200 mL; Concentration of solution 2 (C₂) = 40 %; Quantity of solution 2 (Q₂) = 100 mL
- 2
Apply the formula
C_mix = (C₁Q₁ + C₂Q₂) ÷ (Q₁ + Q₂)
- 3
Result
Concentration of the blend = 20 %
Frequently asked questions
Symbols and assumptions
- C_mix
- Concentration of the blend
- C1, C2
- Concentrations of the two solutions
- Q1, Q2
- Quantities of the two solutions
- • Both quantities are the same kind of measure.
- • The conserved quantity adds without loss.
Sources and review
Reviewed 2026-09-22 · Next review 2027-09-22
- • Mixing a mass with a volume requires the density first. Non-ideal mixtures can contract in volume.
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
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