Free Homebrewing Calculators
Precise, easy-to-use tools for every stage of your brew day. Built by brewers, for brewers.
ABV Calculator
Calculate alcohol by volume from original and final gravity readings. Includes apparent & real attenuation plus calorie estimates.
IBU Calculator
Estimate International Bitterness Units with multiple hop additions. Supports Tinseth and Rager formulas.
Priming Sugar Calculator
Get the exact amount of priming sugar for perfect bottle carbonation. Supports corn sugar, table sugar, DME, and honey.
SRM Color Calculator
Predict your beer's color in SRM, EBC, and Lovibond with a real-time visual preview swatch.
Mash Water Calculator
Calculate strike water temperature, mash volume, and sparge water for all-grain brewing.
Why Use Brewing Calculators?
Homebrewing is equal parts art and science. While creativity drives recipe development, precision in your calculations ensures consistent, repeatable results. Whether you're a first-time brewer or a seasoned veteran, having reliable calculators on hand helps you:
- Hit your target ABV by accurately measuring gravity readings before and after fermentation
- Balance hop bitterness by precisely calculating IBUs from multiple hop additions
- Achieve perfect carbonation with the right amount of priming sugar for your beer style
- Predict beer color to ensure your grain bill matches your style's visual profile
- Nail your mash temperature with the correct strike water calculations
All of our calculators use industry-standard formulas trusted by homebrewers and professional brewers worldwide. They work entirely in your browser with no account required.
For Beer, Wine & Mead
While many of our tools are geared toward beer brewing, the ABV calculator works perfectly for wine and mead makers who measure with a hydrometer. Simply enter your original and final gravity readings to calculate your alcohol content.