Standard Drink Calculator
Measure standard drinks in your beverage
Use our Standard Drink Calculator to determine the number of standard drinks in any beverage by entering its volume and alcohol percentage (ABV). Perfect for responsible drinking and tracking alcohol intake.
Standard Drinks
Amount: 1.5
Want to Estimate BAC?
Track alcohol’s effects with our BAC Calculator to estimate blood alcohol concentration based on drinks, weight, and time.
About the Standard Drink Calculator
The Standard Drink Calculator helps you measure the number of standard drinks in any beverage using its volume and ABV. It supports responsible drinking by aligning with health guidelines, such as limiting intake to 10 standard drinks weekly and 4 daily.
How to Use the Drink Equivalency Calculator
- Enter the beverage volume and select the unit (e.g., Milliliters, Ounces).
- Input the alcohol percentage (ABV) of the beverage.
- Click “Calculate Standard Drinks” to view the result.
The Science Behind Standard Drinks
A standard drink contains ~14 grams of pure alcohol in the US (10 grams in countries like Australia). The formula is:
Standard Drinks = Volume (Liters) × ABV (%) × 0.789
The constant 0.789 is the specific gravity of ethyl alcohol, standardizing alcohol content across beverages. Learn more at NIAAA’s standard drink guide.
Common Beverage Types
Typical standard drink equivalents for popular beverages:
Beer (5% ABV)
12 oz ≈ 1 standard drink
Wine (12% ABV)
5 oz ≈ 1 standard drink
Spirits (40% ABV)
1.5 oz ≈ 1 standard drink
Craft Beer (8% ABV)
12 oz ≈ 1.6 standard drinks
Cocktail (20% ABV)
3 oz ≈ 1.4 standard drinks
Frequently Asked Questions About Standard Drinks
How does the Standard Drink Calculator work?
The Standard Drink Calculator uses the formula: Volume (Liters) × ABV (%) × 0.789 to compute standard drinks, accounting for alcohol’s specific gravity for accurate tracking across all beverage types.
What is a standard drink?
A standard drink in the US contains ~14 grams of pure alcohol, equivalent to 12 oz of 5% beer, 5 oz of 12% wine, or 1.5 oz of 40% spirits, aiding in consistent alcohol intake tracking.
Why calculate standard drinks?
Calculating standard drinks helps monitor alcohol intake to stay within safe limits (e.g., 10 weekly, 4 daily), reducing health risks. The Standard Drink Calculator simplifies this for any beverage.
Can it calculate for all beverages?
Yes, the Standard Drink Calculator works for any alcoholic beverage by inputting volume and ABV, accurately estimating standard drinks for beer, wine, spirits, or cocktails.
How accurate is the calculator?
The Standard Drink Calculator is highly accurate with correct volume and ABV inputs. Variations in actual ABV or serving sizes may affect results, so verify beverage labels for precision.