ABV from specific gravity
ABV from specific gravity: use original specific gravity, final specific gravity. Review the formula, worked example and calculation steps.
Inputs
Use the units shown—
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Formula & explanation
ABV% ≈ (original gravity−final gravity) ×131.25
Variables & units
- Original specific gravity
- Numeric value · minimum 0.000001, maximum 1000000000000
- Final specific gravity
- Numeric value · minimum 0.000001, maximum 1000000000000
Worked example
Use the example inputs to explore this model; the solution shows each supplied quantity.
Assumptions
Approximate brewing gravity model; not an analysis of a finished beverage or blood alcohol.
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
Practice with an example
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