ABV Calculator - Alcohol by Volume Calculator & Brewing Calculator
Free ABV calculator & brewing calculator. Calculate alcohol by volume, calories, and standard drinks. Our calculator uses brewing industry standards to determine accurate alcohol content and nutritional information for beverages.
Last updated: October 19, 2025
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Alcohol by Volume
5.25%
Alcohol by Weight
0.81%
Calories per 100ml
29
Standard Drinks
0.38
Recommendation
Medium alcohol content. Similar to strong beer or wine.
ABV Calculator Types & Features
ABV Formula
(OG - FG) × 131.25
Standard formula for calculating alcohol by volume from gravity measurements
ABW Formula
ABV × 0.789
Convert volume-based alcohol content to weight-based measurements
Calories per 100ml
ABV × 0.789 × 7
Calculate calories from alcohol content for dietary planning
Standard drinks
ABV ÷ 14
Convert alcohol content to standard drink equivalents
Temperature factor
±0.0002 per °C
Correct gravity readings for accurate ABV calculations
Attenuation
(OG - FG) ÷ OG
Calculate fermentation efficiency and attenuation percentage
Quick Example Result
For OG 1.050 and FG 1.010:
ABV
5.25%
Standard Drinks
0.38
How Our ABV Calculator Works
Our ABV calculator uses brewing industry standards and scientific formulas to determine accurate alcohol content and nutritional information. The calculation applies brewing industry standards to ensure precise measurements and analysis for beverage production and consumption.
ABV Calculation Formulas
ABV = (OG - FG) × 131.25ABW = (ABV × 0.789) ÷ (1 + (ABV × 0.789))Calories = ABV × 0.789 × 7Standard Drinks = ABV ÷ 14These formulas ensure accurate ABV calculations for brewing and beverage analysis. The calculations follow standard brewing industry practices and scientific principles.
Shows fermentation process, gravity measurements, and ABV calculation
Brewing Industry Standards
ABV calculations are based on brewing industry standards and scientific principles. These standards ensure accurate alcohol content measurement for beverage production, labeling, and consumption guidelines. Professional brewers use these calculations for quality control and regulatory compliance.
- Gravity measurements: Original gravity (OG) and final gravity (FG) using hydrometers
- Temperature corrections: ±0.0002 per °C for accurate gravity readings
- Standard drinks: 14 grams of alcohol per standard drink equivalent
- Calorie content: 7 calories per gram of alcohol for nutritional tracking
- Regulatory compliance: Accurate ABV labeling for commercial beverages
- Quality control: Consistent alcohol content for product consistency
Sources & References
- Brewers Association - Brewing StandardsOfficial brewing industry standards and best practices
- American Society of Brewing Chemists (ASBC) - Analytical MethodsScientific methods for brewing analysis and quality control
- Alcohol and Tobacco Tax and Trade Bureau (TTB) - Regulatory StandardsFederal regulations for alcohol content labeling and compliance
Need help with other brewing calculations? Check out our breastfeeding calorie calculator and body recomposition calculator.
Get Custom Calculator for Your BusinessABV Calculator Examples
Beer Properties:
- Original Gravity: 1.050
- Final Gravity: 1.010
- Temperature: 20°C
- Gravity Difference: 0.040
Calculation Steps:
- Calculate gravity difference: 1.050 - 1.010 = 0.040
- Apply ABV formula: 0.040 × 131.25 = 5.25%
- Calculate ABW: (5.25 × 0.789) ÷ (1 + (5.25 × 0.789)) = 4.14%
- Calculate calories: 5.25 × 0.789 × 7 = 29 calories per 100ml
Result: 5.25% ABV, 4.14% ABW, 29 calories per 100ml
This is a typical beer strength with moderate alcohol content.
Light Beer Example
OG 1.040, FG 1.008
4.2% ABV, 0.3 standard drinks
Strong Beer Example
OG 1.080, FG 1.020
7.9% ABV, 0.56 standard drinks
Frequently Asked Questions
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