Coffee ratio calculator

Brew ratios are grams of water per gram of coffee. The Specialty Coffee Association’s “golden cup” is about 1:18; stronger brews use less water.

Your answer

Coffee31.3 gAbout 5.9 level tablespoons
Water500 g
6 oz cups2.8

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How we worked it out

Updated as you change the numbers.

  1. Coffee = water ÷ ratio; water = coffee × ratio. 1 mL of water weighs 1 g.

Method and assumptions

A level tablespoon of medium-ground coffee weighs roughly 5 to 6 g; weighing is more reliable. Coffee holds back about twice its weight in water, so you get a little less brewed coffee than the water used.

Questions

How much coffee for 500 mL of pour-over?

About 31 g at 1:16.

Sources

Method and figures checked on . Every worked answer on this page is covered by an automated test. Found a mistake? Tell us.

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