Proof & ABV Converter
Convert between proof, ABV (alcohol by volume), and specific gravity. Supports US proof and UK proof (Sikes).
Inputs
Results
US Proof
80°
ABV
40%
Specific Gravity0.68
UK Proof (Sikes)91.43°
How to Use This Calculator
- Enter a value in your current unit (US proof, ABV percentage, specific gravity, or UK proof).
- Select the input unit from the dropdown.
- The calculator instantly converts to all other measures: US proof, ABV%, specific gravity, and UK Sikes proof.
- Use the correct unit for your jurisdiction's labeling requirements or import/export documentation.
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