Unit Converters · Free tool
Dilution Calculator
Solve for any of C₁, V₁, C₂, V₂ using the dilution equation. Free online calculator that includes the solvent volume needed for the diluent. No sign-up.
V₁ (stock to take)
10.0000 mL
Add 90.00 mL of solvent to make the final volume.
Make sure C₁ and C₂ use the same unit. For starting molarity from a solid, use the molarity calculator. For pH-related work, see the pH calculator.
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What it does
C₁V₁ = C₂V₂. Solve for any one of the four variables — useful for making serial dilutions, prepping working stocks from a concentrated solution, or backing out a final concentration you accidentally created.
Keep C₁ and C₂ in the same unit (M, mM, mg/mL). For starting from a solid, see the molarity calculator.
Embed this tool on your siteShow snippetHide
Paste this snippet into any page. Loads on-demand (lazy), no tracking scripts, and sized to most dashboards. Replace the height to fit your layout.
<iframe src="https://freetoolarena.com/embed/dilution-calculator" width="100%" height="720" frameborder="0" loading="lazy" title="Dilution Calculator" style="border:1px solid #e2e8f0;border-radius:12px;max-width:720px;"></iframe>How to use it
- Pick the unknown (C₁, V₁, C₂, or V₂).
- Enter the other three values.
- Read the answer — plus the solvent volume needed if solving for V₁.
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