Coffee to Water Ratio Calculator
Get the perfect coffee-to-water ratio for pour-over, French press, espresso, and more. Use golden ratio guidelines for consistently delicious coffee.
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Brew Perfect Coffee Every Time
The secret to great coffee is the right ratio of coffee to water. Our calculator provides golden ratios for every brewing method, helping you achieve barista-quality results at home.
What is the Coffee-to-Water Ratio?
The coffee-to-water ratio expresses how much coffee grounds to use per unit of water. For example, a 1:15 ratio means 1 gram of coffee for every 15 grams of water. Different brewing methods have different optimal ratios.
Coffee Ratio Formula
Coffee (g) = Water (ml) ÷ RatioWhy Use a Coffee Ratio Calculator?
Consistent Strength
Achieve the same great taste every morning.
Method-Specific Ratios
Optimal ratios differ for pour-over, espresso, cold brew, etc.
Adjust to Taste
Find your perfect strength from mild to bold.
How to Use the Coffee Calculator
Brewing Method Ratios
Pour-Over (V60, Chemex)
1:15 to 1:17 ratio for clean, bright flavors.
French Press
1:12 to 1:15 ratio for full-bodied, rich brew.
Espresso
1:2 ratio for traditional 18g in, 36g out.
Cold Brew
1:5 to 1:8 ratio (concentrated) to dilute later.
Frequently Asked Questions
The SCA (Specialty Coffee Association) recommends 1:15 to 1:18 for most brewing methods. This produces balanced extraction with 18-22% of coffee solids dissolved.