
Alcohol Dilution Calculator
Calculate how much water to add and total final volume when diluting spirits or alcohol from initial ABV to target ABV.
Open toolFind stock volume needed from C₁V₁ = C₂V₂. Provide Stock concentration, Target concentration, Final solution volume to compute results directly in your browser. Target concentration cannot exceed stock concentration. Concentrations use one unit; volumes use one unit. Assumes additive volumes and unchanged solute amount. Inputs and results use floating-point numbers; output shows up to 12 significant digits. Rounding can occur. Common search workflows supported include "volume dilution calculator", "concentration calculator dilution", "dilution calculator".
Enter the inputs, then select Calculate.
Result will appear here
The Dilution Calculator evaluates Stock concentration, Target concentration, Final solution volume in client-side JavaScript using the deterministic rule below and updates the output panel immediately without uploading data to a server.
Find stock volume needed from C₁V₁ = C₂V₂.
Target concentration cannot exceed stock concentration. Concentrations use one unit; volumes use one unit. Assumes additive volumes and unchanged solute amount. Inputs and results use floating-point numbers; output shows up to 12 significant digits. Rounding can occur.
Review the input parameters, allowed value ranges, and worked reference cases for the Dilution Calculator below before running your calculation.
| Parameter / Scenario | Default / Sample Value | Rule or Allowed Range | Output / Usage Note |
|---|---|---|---|
| Input: Stock concentration | 2 | Range: 1e-09 to 1000000000.0 | Required workspace parameter |
| Input: Target concentration | 0.5 | Range: 1e-09 to 1000000000.0 | Required workspace parameter |
| Input: Final solution volume | 100 | Range: 1e-09 to 1000000000.0 | Required workspace parameter |
| Worked Case 1: Baseline run (Stock concentration = 2) | Preloaded / test values | Find stock volume needed from C₁V₁ = C₂V₂ | Stock concentration: 2; Target concentration: 0.5; Final solution volume: 100. The displayed output is 25. |
| Worked Case 2: Comparison scenario (Comparison stock concentration check) | Preloaded / test values | Find stock volume needed from C₁V₁ = C₂V₂ | Stock concentration: 1; Target concentration: 0.1; Final solution volume: 1000. The displayed output is 100. |
Follow these three steps to configure Stock concentration, Target concentration, Final solution volume, verify unit and boundary rules, and export your Dilution Calculator output.
Set target concentration, final solution volume. Target concentration cannot exceed stock concentration; units must match.
Select Calculate to see the required stock volume. Copy result copies this text; Download saves it as a TXT file.
These concrete scenarios illustrate how the Dilution Calculator processes baseline inputs, comparison checks, and boundary constraints.
Stock concentration: 2; Target concentration: 0.5; Final solution volume: 100. The displayed output is 25.

Stock concentration: 1; Target concentration: 0.1; Final solution volume: 1000. The displayed output is 100.

When solving for 'volume dilution calculator', verify that Stock concentration, Target concentration, Final solution volume use consistent units and stay within the documented scope: Target concentration cannot exceed stock concentration. Concentrations use one unit; volumes use one unit. Assumes additive volumes and unchanged solute amount. Inputs and results use floating-point numbers; output shows up to 12 significant digits. Rounding can occur.

The output panel reports the exact result derived from Stock concentration, Target concentration, Final solution volume alongside any unit or formatting notes.
The result is the required stock volume. Determine stock volume for a stated final concentration and final volume.
Numerical output shows up to 12 significant digits. Floating-point arithmetic and display rounding can affect the last digits.

Review these boundary constraints and validation rules before relying on the Dilution Calculator output.
Operational scope: Target concentration cannot exceed stock concentration. Concentrations use one unit; volumes use one unit. Assumes additive volumes and unchanged solute amount. Inputs and results use floating-point numbers; output shows up to 12 significant digits. Rounding can occur. Inputs that violate minimum/maximum bounds or required format rules are rejected with a clear diagnostic prompt.
Need an adjacent calculation in Everyday Math? Use the related tools linked below to chain your workflow without leaving your browser.


Calculate how much water to add and total final volume when diluting spirits or alcohol from initial ABV to target ABV.
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Open toolAnswers about using Dilution Calculator and understanding its results.
The Dilution Calculator applies the rule: Find stock volume needed from C₁V₁ = C₂V₂. Enter Stock concentration, Target concentration, Final solution volume into the workspace and the tool computes the exact output in your browser.
Yes. Provide Stock concentration, Target concentration, Final solution volume using the documented units and format shown in the quick reference table above. Preloaded default values let you test the workflow immediately.
Target concentration cannot exceed stock concentration. Concentrations use one unit; volumes use one unit. Assumes additive volumes and unchanged solute amount. Inputs and results use floating-point numbers; output shows up to 12 significant digits. Rounding can occur. Confirm that your inputs fall within the allowed ranges before exporting the result.
Yes. All calculations for the Dilution Calculator execute 100% locally in your browser's JavaScript runtime. No inputs or results are uploaded to any external server.
Choose another tool for your next calculation, conversion, or text task.