Health

Standard Drink Calculator

Convert a drink's size and strength to standard drinks.

Calculated Output

Standard drinks (US) 1

Pure alcohol 14.005

Formula: alcohol(g) = volume × ABV% × 0.789 ; US standard = 14 g

Step-by-Step Breakdown

1. Values used:

2. Volume = 355 ml

3. Alcohol by volume = 5 %

5. Standard drinks (US) = 1

6. Pure alcohol = 14.005

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The math behind it

alcohol grams = volume × ABV% × 0.789 (ethanol density); standard drinks = grams ÷ 14.

355 ml beer at 5% → ~1.0 standard drink.

Different countries?

A 'standard drink' varies (UK uses 8 g units).