What it helps you decide
Calculate water addition, final volume, ABV, and US proof.
Beverage and extract formulation
Calculate dilution water with clear C1V1 math.
Plan a target alcohol by volume from a stronger base spirit, with US proof and retained pure-alcohol volume kept visible.
Start with the example
The values already filled in are a working example—not a recommendation.
- 1Choose the closest starting point.
- 2Replace the example with your real details.
- 3Read the live result and its important limits.
Your numbers
Starting spirit and target
Use the filled example first. Then replace each field with a measured value or your best current estimate.
Step 1Answer one question at a time. Your example values stay available.
Important limit
Alcohol and water volumes are not perfectly additive.
This uses ideal C1V1 = C2V2 planning math. Temperature and contraction affect precise proofing; sugar and dissolved solids can invalidate a direct hydrometer reading. Follow applicable alcohol permits, tax, formulation, denaturing, labeling, and safe-handling requirements.
About this free formulation & batching tool
How to use the Alcohol / ABV Dilution & Proofing
Calculate water addition, final volume, ABV, and US proof. The calculator runs privately in your browser and is designed to make the assumptions behind the answer visible.
What to have ready
Start with a tested baseline formula, measured weights, the unit used by the full batch, and your actual finished yield or process loss.
Key inputs: Starting alcohol solution volume; Starting ABV; Target ABV; Transfer / process loss allowance.
How to use the result
Treat the output as a controlled batch draft. Record the assumptions, run a small test, and approve the result only after checking quality and safety.
Ready for the connected version?
Turn the calculation into a repeatable workflow.
Batch Scale connects recipes, materials, costs, inventory, production, sales, and your storefront in one workspace.