Frequently Asked Questions
How are calories from alcohol estimated?
Alcohol kcal ≈ fluid ounces × ABV% × 1.6, since pure ethanol provides about 7 kcal/g. A 12 oz beer at 5% ABV contributes roughly 12 × 5 × 1.6 ÷ 100 ≈ 96 kcal from alcohol alone.
Where does the 1.6 factor come from?
Ethanol is ~7 kcal/g at a density of 0.789 g/ml, and 1 oz = 29.57 ml, so 1 oz of pure alcohol ≈ 163 kcal; scaling by ABV fraction yields about oz × ABV% × 1.6. It captures alcohol calories before any sugar.
How do carbs add to the total?
Add carbohydrate calories at 4 kcal/g: a beer with 13 g carbs adds about 52 kcal on top of its alcohol calories. Sweet cocktails and dessert wines can be carb-dominant.
Why are spirits lower-calorie than they seem?
A 1.5 oz shot of 40% spirit is about 1.5 × 40 × 1.6 ÷ 100 ≈ 96 kcal with near-zero carbs; mixers usually add the rest. This is informational, not dietary advice - please drink in moderation.
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Important Disclaimer: Estimates for informational purposes only.
This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.