Mixed Drink ABV Calculator

Works out the alcohol strength of a drink mixed from several ingredients, the water or mixer that brings a drink to the strength you want, and a rough strength for a fruit infusion. Use it when making cocktails, highballs or homemade infused liquor.

How to use

1. On "Mix", choose the unit (mL, fl oz or glasses) and enter each ingredient's amount and ABV; press "Add an ingredient" for more rows.
2. Optionally enter "Water from melted ice"; the ABV of the mix, the total volume and the pure alcohol appear at once.
3. Press an example button to load a recipe, then change the amounts and strengths to match your bottles.
4. On "Dilute to a strength", enter the drink, its ABV and the ABV you want to get the water or mixer to add.
5. On "Fruit infusion", enter the liquor, its ABV, the fruit weight and its water share for an expected ABV.

How it works

• ABV = sum of (amount × ABV) ÷ total amount. Pure alcohol in grams = alcohol volume × 0.789 g/ml.
• Alcohol and water shrink slightly when mixed. This is ignored, so all results are approximations.
• The page does not estimate blood alcohol, whether you may drive, or health limits.

Questions and answers

What is the ABV of a gin and tonic?

With 50 ml of 40 % gin and 150 ml of tonic, it is 20 ml of alcohol in 200 ml, or 10 %. Ice that melts lowers it further.

How do I calculate the ABV of a mixed drink?

Multiply each amount by its ABV, add the results and divide by the total amount. 60 ml at 16.5 % plus 140 ml at 4.5 % gives 16.2 ml in 200 ml, about 8.1 %.

How much water to dilute 40% alcohol to 25%?

Water = amount × (40 ÷ 25 − 1). For 100 ml that is 60 ml of water.

How much alcohol is in a drink in grams?

Multiply the alcohol volume by 0.789. A drink with 20 ml of alcohol contains about 15.8 g.