Volume Percent (v/v) Calculator

Compute precise volume percent (v/v) for laboratory and industrial mixtures with unit-aware inputs, reverse calculations, and step-by-step formulas. Handle milliliters or liters seamlessly, convert units automatically, and export results. Built-in validation, rounding control, and formula audit trail ensure reliable outputs for formulation, QC, and classroom use—no spreadsheets required. Includes 95% CI estimates and clear assumptions for transparent, reproducible decisions today.

Calculator

v/v%
Used to estimate a conservative 95% confidence interval for the result.

Quick reference

  • v/v%: (solute volume ÷ total solution volume) × 100
  • Units must be consistent; this tool converts mL, L, and µL automatically.
  • Assumes additive volumes as an approximation; real systems may deviate.

FAQs

It is the ratio of solute volume to total solution volume, multiplied by 100. For example, 10% v/v means 10 mL solute in 100 mL total solution.
Yes. Enter values in mL, L, or µL; the calculator converts internally so you can mix units safely.
Absolutely. Pick the target in the dropdown to compute solute volume from a target percentage, or total volume from a given solute and percentage.
The tool assumes additive volumes, which is a good first approximation. Real mixtures can contract or expand on mixing, leading to small differences.
It estimates a confidence interval based on your relative input uncertainty, giving a sense of measurement variability in the final result.
Match decimal places to your instrument resolution. For volumetric flasks and pipettes, 2–3 decimals for mL is typical; adjust as appropriate for your context.
Yes, v/v% is common for ethanol–water mixtures. Note that non-ideal mixing can cause slight deviations; this calculator provides an idealized estimate.

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Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.