Free coffee calculators
Simple tools that take the guesswork out of brewing. No sign-up, works on your phone next to the kettle.
Coffee Ratio Calculator
Exact coffee and water amounts for any brew method, by cups, grams or ounces.
Open calculator →Pour-Over Timer
Guided pour schedule for V60, Kalita, Chemex and French press.
Open calculator →Cold Brew Calculator
How much coffee and water for concentrate or ready-to-drink cold brew.
Open calculator →Espresso Ratio Calculator
Target yield for any dose, plus a shot-time troubleshooter.
Open calculator →Caffeine Calculator
Add up your daily caffeine from coffee, tea, soda and more.
Open calculator →