laboratory
Dilution Calculator
Solve any term in C₁V₁ = C₂V₂ with compatible concentration and volume units.
Calculator
Formula
C₁ V₁ = C₂ V₂
- C₁ — Stock concentration
- mol/L · mmol/L
- V₁ — Stock volume
- m³ · L · mL
- C₂ — Final concentration
- mol/L · mmol/L
- V₂ — Final volume
- m³ · L · mL
Assumptions and limits
- Solute amount is conserved and volumes are treated as additive.
Example
Prepare 100 mL of 10 mM solution from 1 M stock
Choose “Load example” in the calculator to restore these inputs and see the complete steps.
Sources
- Chemistry 2e — OpenStax
- The International System of Units (SI), 9th edition — BIPM
Frequently asked questions
Are my inputs uploaded?
No. This calculator runs locally in your browser. Inputs are placed in a URL only when you explicitly copy a share link.
Why are units converted first?
Canonical units prevent scale errors when inputs use mixed units. The result is converted back to your selected output unit afterward.
Does the result replace professional judgment?
No. The result applies only to the stated model and assumptions. Qualified people should review high-risk engineering, medical, or laboratory decisions.