Coffee to Water Ratio Calculator
Build a recipe by water amount, target strength, serving size, and brew method. The result includes grounds, beverage yield, bloom water, pour stages, grind, temperature, and time.
This tool is part of these guided projects. Each project provides step-by-step instructions with checklists and all the tools you need in one place.
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Coffee dose is calculated as water divided by the selected brew ratio. Beverage yield subtracts estimated water retained by the grounds, using method-specific absorption assumptions.
coffee grams = water ml / ratioDefault ratios, grind, time, and temperature are practical starting points for common manual brewing methods. Adjust ratio and water volume to match your grinder and taste.
The Coffee to Water Ratio Calculator scales ingredient quantities linearly by serving count or batch size. Non-linear items (yeast, salt, leavening) may use sub-linear scaling factors.
Scaled Amount = Base × (New Servings ÷ Original Servings)Updated: July 2026
Enter 320 ml water at 1:16 to get the coffee dose, bloom water, pour stages, and expected cup yield.
Switch to cold brew and scale water to a full jar while keeping a concentrate ratio that is easy to dilute.
A host doubles or triples a favorite recipe using the Coffee to Water Ratio Calculator so ingredient weights stay balanced for a larger batch.
Coffee grounds retain water. Use beverage yield for serving estimates, not the starting water amount.
Adjust one variable per brew so you can tell what improved or worsened the cup.
Build a repeatable coffee recipe from your brew method, water amount, target ratio, and serving size. The calculator converts water to coffee dose and gives practical brewing targets.