Alcohol Unit Calculator
Calculate how many standard alcohol units you've consumed and understand safe drinking limits.
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UK unit = 10ml pure alcohol. US standard drink = 14g pure alcohol (~1.75 UK units). Safe limits: ≤14 units/week (NHS, men and women).
Units in common Indian drinks
| Drink | Serving | ABV | UK Units |
|---|---|---|---|
| Kingfisher / Tuborg beer | 330ml bottle | 5% | 1.65 |
| Kingfisher Strong 650ml | 650ml bottle | 8% | 5.2 |
| Old Monk Rum / Whisky | 30ml peg | 42.8% | 1.28 |
| Whisky large peg | 60ml | 42.8% | 2.57 |
| Wine (house pour) | 150ml | 12% | 1.8 |
| Cocktail (approx) | 200ml | 8% | 1.6 |
Frequently asked questions
What is one UK alcohol unit?
One UK unit equals 10ml (or 8g) of pure alcohol. It takes a healthy adult liver about 1 hour to process one unit. A standard single measure of spirits (25ml at 40% ABV) is 1 unit. A 330ml bottle of 5% beer is 1.65 units.
How many units per week is safe?
The NHS advises both men and women to drink no more than 14 units per week, spread over 3 or more days, with several alcohol-free days. 14 units equals about 6 pints of average-strength beer or 10 small glasses of wine.
What is the difference between a UK unit and a US standard drink?
A US standard drink contains 14g of pure alcohol (~1.75 UK units). A UK unit contains 8g (10ml) of pure alcohol. Because the measures differ, 14 UK units ≈ 8 US standard drinks per week. This calculator shows both.
How do I calculate units myself?
Units = Volume (ml) × ABV (%) ÷ 1000. For example, a 650ml beer at 5% ABV = 650 × 5 ÷ 1000 = 3.25 units.
Does drinking every day add to tolerance?
Regular drinking does build tolerance, meaning you feel the effects less strongly — but your liver and organs are still processing the same amount of alcohol. Tolerance is not protection. Daily drinking, even at moderate levels, is associated with increased health risks compared to the same weekly amount spread less frequently.
Safe limits are guidelines. No level of alcohol consumption is completely risk-free. If you are concerned about your drinking, speak to a doctor.