Ratio Calculator

Enter either coffee (grams) or water (ml), choose a ratio, and we'll calculate the other. All calculations happen in your browser.

Coffee (grams)

Ratio (coffee : water)

Water (ml)

Enter either coffee or water; the other updates automatically. Ratio is grams of coffee per 1 ml of water (e.g. 1:15 = 15 ml per 1 g).

Common Ratios

1:15 – 1:17

V60, Chemex, Kalita Wave

1:12 – 1:15

Immersion brewing

1:12 – 1:16

Varies by recipe

1:2 – 1:2.5

Yield ratio