Alcohol Unit Calculator
One US standard drink contains 14 g of pure alcohol: 12 fl oz of 5 percent beer, 5 fl oz of 12 percent wine, or 1.5 fl oz of 40 percent spirits. Enter your usual week and see the totals against the low-risk limits.
How this is calculated
- A US standard drink is 14 g of ethanol. For an unusual serve: standard drinks = volume in fl oz x ABV divided by 0.6.
- Dietary Guidelines for Americans 2020-2025: up to 2 drinks a day for men and 1 for women, and less is better for some health goals.
- Those limits are an upper bound on low risk, not a recommendation to drink.
Read the guide
The content on this site is for general educational purposes and reflects widely published public health guidance. It is not a substitute for professional medical advice, diagnosis, or treatment. Always talk with a qualified healthcare provider before changing your diet, starting a supplement, or making a major dietary change, especially if you have a medical condition.