Coffee Ratio Calculator

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Scale a reliable brew ratio to the cup or batch you actually want to make.

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About this tool

How it works

A 1:16 ratio means one gram of coffee for every sixteen grams—or roughly millilitres—of water.

Example

For 500 ml of water at 1:16, use 31.25 g of coffee.

Private by default

The calculation or transformation happens in this browser. There is no account, and the values you enter are not sent to Naughty Bear Labs.

Install Coffee Ratio

Open your browser menu and choose Install app or Add to Home screen.