Alcohol Proof Converter
Switch alcohol strength between ABV percent, US proof and UK proof in one step. The result updates live as you type, so it is handy for reading foreign bottle labels, cocktail recipes and duty-free shopping.
Result will appear here.
How to use
- Type the alcohol strength value.
- Choose the From and To units — the result updates live.
- See the converted values in all units below.
Note: US Proof = ABV x 2. UK Proof = ABV x 1.75 (ABV = UK proof x 4/7).
Frequently Asked Questions (FAQ)
What can I convert with the alcohol proof converter?
You can convert between ABV percent, US proof and UK proof, and the result updates live as you type.
How are US and UK proof calculated from ABV?
US proof equals ABV multiplied by 2, and UK proof equals ABV multiplied by 1.75.
Why are US and UK proof different?
They are different historical scales. On this converter, US proof is simply ABV times 2, while UK proof is ABV times 1.75.
Do results update as I type?
Yes. The converted values update live as you type, and you can swap the conversion direction.