Health & Fitness
Alcohol Units Calculator
Calculate alcohol units consumed, calories, weekly projection, and health risk category. Track your intake against recommended guidelines.
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Total Units
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How is this calculated?
Formula: UK standard alcohol unit calculation.
Units = Volume (ml) × ABV (%) / 1000 × Number of Drinks
Calories = Total Units × 56 (approx. calories per unit)
Weekly Projection = Units per session × 7
Risk Categories (UK Guidelines, max 14 units/week):
≤ 14 units/week → Low Risk (green)
15–35 units/week → Increasing Risk (amber)
> 35 units/week → High Risk (red)
Processing Time ≈ 1 unit per hourCalculation history
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Medical Disclaimer: This calculator provides estimates for informational purposes only. If you are concerned about your alcohol intake, speak with your healthcare provider. There is no completely safe level of alcohol consumption. If you need support, contact your local alcohol helpline.
FAQ
Frequently asked questions
What is an alcohol unit?
One UK alcohol unit equals 10ml (8g) of pure alcohol. A standard pint of beer (568ml, 4% ABV) contains about 2.3 units. A glass of wine (175ml, 12%) is about 2.1 units. A single spirit measure (25ml, 40%) is 1 unit. Units help you track consumption regardless of drink type or size.
What are the recommended weekly limits?
UK guidelines recommend no more than 14 units per week for both men and women, spread over 3 or more days with several drink-free days. This equates to roughly 6 pints of average beer or 6 glasses of wine per week. There is no completely safe level of alcohol consumption.
How many calories are in alcohol?
Alcohol contains 7 calories per gram (nearly as much as fat at 9 cal/g). One unit of alcohol is approximately 56 calories from the alcohol alone — mixers, sugar in drinks add more. A pint of beer is ~180 calories, a glass of wine ~130 calories, a G&T ~170 calories. These are "empty calories" with no nutritional value.
How long does it take to process alcohol?
The liver processes approximately 1 unit of alcohol per hour. Nothing can speed this up — not coffee, cold showers, or food (though food slows absorption). If you drink 14 units on a Saturday night, you won't be fully alcohol-free until Sunday afternoon. This matters for driving and medication interactions.
What is considered high-risk drinking?
Based on UK health guidelines: Low risk is up to 14 units/week spread over multiple days. Increasing risk is 15–35 units/week for women or 15–50 for men. High risk (harmful) is over 35 units/week for women or over 50 for men. Binge drinking (6+ units in a session) carries additional acute risks regardless of weekly total.