GlenCalc

Alcohol units calculator

A US standard drink has 14 g of pure alcohol; a UK unit is 8 g (10 mL). This doesn’t estimate blood alcohol and can’t tell you if it is safe to drive.

Your answer

US standard drinks1.7
UK units3.1
Pure alcohol24.3 g
  • Don’t drink and drive; there is no reliable way to calculate when you’re safe.

Worked out in your browser. Nothing you type is sent to a server.

How we worked it out

Updated as you change the numbers.

  1. Pure alcohol (mL) = volume × ABV. Grams = mL × 0.789. US drinks = grams ÷ 14; UK units = mL ÷ 10.

Method and assumptions

US dietary guidance defines a standard drink as 14 g of alcohol (12 oz of 5% beer, 5 oz of 12% wine, 1.5 oz of 40% spirits). The UK unit is 10 mL of pure alcohol.

Questions

How many standard drinks is a 16 oz IPA at 6.5%?

About 1.7 US standard drinks (3.1 UK units).

Sources

Method and figures checked on . Every worked answer on this page is covered by an automated test. Found a mistake? Tell us.

Embed this calculator on your site

Free to use. Paste this where you want the calculator; it runs in your visitors’ browsers, sets no cookies and sends nothing to us.

Related calculators