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Free alcohol unit tool: turn serving size, ABV %, and drink count into grams of ethanol and side-by-side US / UK / AU teaching definitions. Works alongside our ABV calculator for brewers.
Last updated: April 18, 2026
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One glass, can, or shot—multiply with “number of drinks” if identical.
Summary
About 14 g pure ethanol (17.74 ml) — roughly 1 US standard drink(s) (14 g), 1.77 UK unit(s) (10 ml ethanol), 1.4 AU standard drink(s) (10 g). Definitions differ by country; use one system consistently.
Pure ethanol
14 g
Total beverage
354.88 mL
US standard drinks
1
~14 g ethanol each
UK units
1.77
10 ml ethanol each
AU standard drinks
1.4
~10 g ethanol each
Not medical or legal advice. Pregnancy, medications, driving laws, and health conditions change what is safe—follow local limits and your clinician.
Often modeled as
~14 g ethanol
NIAAA-style references for beer, wine, and spirits examples—products still vary.
1 unit
10 ml pure ethanol
Count total ml of ethanol, divide by 10 for units in this model.
Common packaging rule of thumb
~10 g ethanol
Useful for comparing AU labels; not interchangeable with US counts without conversion.
ρ ≈ 0.789 g/mL
Rounded educational value; temperature slightly changes density.
Fraction of pure ethanol
Volume × ABV% / 100
Assumes ABV is stated accurately; homemade drinks need measurement or estimates.
Guidelines change
Ask professionals
National low-risk drinking advice differs; addiction and pregnancy need individualized care.
Default: 12 US fl oz at 5% ABV, 1 drink → about 1 US standard drink(s) and 1.77 UK unit(s) in this model.
Total beverage millilitres come from your per-serving volume (converted from US fl oz if needed) times drink count. Pure ethanol volume equals total volume times ABV divided by 100. Mass in grams multiplies ethanol volume by ethanol density. We then divide by each region’s reference amount: 14 g for US standard drinks, 10 ml ethanol for UK units, and 10 g for Australian standard drinks. Explore more fitness & lifestyle tools for diet and recovery context.
pure ethanol (mL) = total beverage (mL) × (ABV / 100)
pure ethanol (g) ≈ pure ethanol (mL) × 0.789
US drinks ≈ ethanol (g) / 14
UK units ≈ pure ethanol (mL) / 10
AU drinks ≈ ethanol (g) / 10
Balancing macros? See the macro calculator.
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Suggested hashtags: #Alcohol #StandardDrink #Health #Calculator #ABV