This collection of free online brewing applications and recipe calculators can help you with many common brewing calculations. You can use the main Brew-Engine application to design your own beer recipes from scratch. You can perform many common brewing calculations using the other tools. Some of the newer calculators are less than fully polished. Feel free to play around with these, but they may not always work as expected.

General Brewing Calculators


This application lets you build a complete beer recipe. Select grain bill and hop schedule. Calculates beer gravity and IBU.


Temperature correction for hydrometer specific gravity readings.

Works in Progress

Beer Color Calculator

Converts between many popular beer color units. Displays predicted beer color based on SRM and predicted grain color based on Lovibond.


Predicts apparent attenuation from yeast strain.


Predicts original gravity from fermentables.


Calculate IBUs based on hop additions.