Alcohol Units Calculator
Units and standard drinks in a beverage.
Enter your values
Enter the volume in mL.
Enter the abv in %.
Enter the number of drinks you are working with.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- UK units per drink
- 2.6
- Total UK units
- 7.8
- US standard drinks
- 4.4
- Pure alcohol
- 78 mL
- Weekly guideline share
- 56%
Quick answer
One UK unit is 10 mL of pure alcohol; one US standard drink is 14 g, about 17.7 mL.
Units = Volume (mL) × ABV% ÷ 1000
At a glance
| What it does | Units and standard drinks in a beverage. |
|---|---|
| Category | Health |
| Inputs needed | Volume, ABV, Number of drinks |
| Main output | UK units per drink |
| Formula | Units = Volume (mL) × ABV% ÷ 1000 |
| Cost | Free — no sign-up, no download |
How to use the Alcohol Units Calculator
- 1Enter the drink volume in millilitres.
- 2Enter the ABV from the label.
- 3Enter how many you had.
Inputs explained
- Volume(mL)
- Enter the volume in mL.
- ABV(%)
- Enter the abv in %.
- Number of drinks
- Enter the number of drinks you are working with.
Worked example
Using the values the calculator loads with:
Inputs
- Volume500 mL
- ABV5.2 %
- Number of drinks3
Results
- UK units per drink2.6
- Total UK units7.8
- US standard drinks4.4
- Pure alcohol78 mL
- Weekly guideline share56%
Frequently asked questions
What is the UK guideline?
No more than 14 units a week, spread over three or more days.
Is a pint one unit?
No — a pint of 5% beer is about 2.8 units.
What do I need to enter into the Alcohol Units Calculator?
Just 3 values: volume, abv, number of drinks. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Alcohol Units Calculator work out the answer?
One UK unit is 10 mL of pure alcohol; one US standard drink is 14 g, about 17.7 mL. It applies the formula Units = Volume (mL) × ABV% ÷ 1000 and shows the working so you can check each step by hand.
Is the Alcohol Units Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.