Work out coffee to water ratio instantly with clear inputs, formula shown and shareable results.
Dose is water divided by the ratio; the grounds retain roughly twice their own weight in water, so the liquid in the cup is always less than the water poured. The 1:16 golden ratio lands near 1.35% dissolved solids, the accepted sweet spot, and the retained-water figure explains why a 500 g brew never yields 500 g of coffee.
Coffee dose
coffee grams = water grams / ratio
Beverage yield
in the cup = water - coffee grams x water retained per gram of grounds
coffee grams = water grams / ratio. Dose is water divided by the ratio; the grounds retain roughly twice their own weight in water, so the liquid in the cup is always less than the water poured.
The 1:16 golden ratio lands near 1.35% dissolved solids, the accepted sweet spot, and the retained-water figure explains why a 500 g brew never yields 500 g of coffee.
Enter water, water to coffee ratio, brew method. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.