Coffee Brew Ratio Calculator
Work out coffee and water amounts from a brew ratio, for a consistent cup.
The ratio behind a good cup
Good coffee is largely about the ratio of coffee to water, and dialling in a ratio you like lets you reproduce the same cup every time and scale it up or down. This works out the coffee and water amounts from a ratio and a quantity, so whether you are making one cup or a full pot, the strength stays consistent.
Set your ratio and how much you are making, and get the amounts.
Ratios and where to start
Brew ratios are written as coffee to water, and a common starting point for filter coffee is around one part coffee to fifteen or sixteen parts water by weight — stronger with less water, weaker with more. Weighing both the coffee and the water is the secret to consistency, since scooping is unreliable. From a sensible starting ratio you can adjust to taste and, once you find your number, hit it every time. It is the single habit that most reliably turns inconsistent home coffee into a cup you can count on.
Coffee Brew Ratio Calculator FAQ
What is a good coffee-to-water ratio to start with?
Around one part coffee to fifteen or sixteen parts water by weight for filter coffee, then adjust to taste.
Why weigh instead of scoop?
Scooping is inconsistent, so the strength varies cup to cup. Weighing both coffee and water lets you hit the same ratio every time.
Is anything uploaded?
No. The calculation happens in your browser.