Coffee to Water Ratio Calculator
Pick your brew method, enter the coffee or the water you have, and get the other amount. A common starting point for filter coffee is 1:16, or 1 g of coffee to 16 g of water.
Brew Setup
Calculate the coffee-to-water ratio for espresso, pour over, French press, AeroPress, moka pot and cold brew — from either the coffee or the water you have.
Formula
water = coffee × ratio (e.g. 1:16 means 16 g water per gram of coffee). 1 g of water ≈ 1 ml, so 1:16 ≈ 62 g coffee per litre.
Reference Values
- •Golden ratio: 1:15 – 1:18
- •Espresso: 1:2
- •Cold brew: 1:8 (concentrate)
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FAQ
Common questions about Coffee Ratio Calculator
How we calculate this
We use the standard published formula for this calculation, and we show the working so you can check it.
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