Coffee Brewing Ratio Calculator
Extracting sweet, balanced coffee requires balancing your water volume against ground coffee mass. Use our live calculator below to dial in your morning brew.
Weigh out whole beans, grind fresh, and pour with water at 200°F–205°F for ideal extraction.
Shop Fresh Beans →Why Do Brew Ratios Matter?
Coffee beans contain roughly 28% water-soluble material. The Specialty Coffee Association golden extraction window targets dissolving 18% to 22% of the bean's total mass.
Using too little water (e.g. 1:12) under-extracts the grounds, leaving behind heavy sour acids without dissolving sweet carbohydrates. Using too much water (e.g. 1:20) over-extracts, leaching bitter, astringent lignin and polyphenols into your cup.