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Food & hospitality

Drink blend strength Calculator

Calculate approximate mixed drink ABV and alcohol mass per serving. This free drink blend strength calculator shows the calculation and its assumptions so you can compare your own figures.

How the drink blend strength calculation works

Alcohol volume = sum(volume × ABV fraction). Blend ABV divides by total volume; ethanol density is approximately 0.789 g/ml.

Assumes additive volumes at similar temperature; contraction and measurement variation are ignored. Alcohol mass is not an assessment of impairment or a safe intake recommendation.

Using this calculator

  1. Enter your own figures in the labelled inputs. Keep the currencies, units and time periods consistent.
  2. Choose any applicable rate profile, pattern or assumption shown for this tool. Open additional inputs when relevant.
  3. Review blended abvpercent and serving ml, then read the stated assumptions and eligibility conditions before using the result.

Worked example

This is a static example using illustrative inputs, not facts about you or today’s date. The displayed eligibility selections and assumptions apply only to this example.

See example inputs
First drink volume (ml)
100
First drink ABV (%)
40
Second drink volume (ml)
100
Second drink ABV (%)
10
Alcohol-free dilution (ml)
300
Servings
4
Blended ABVPercent
10%
Serving ML
125 mL
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