Specialty Coffee-to-Water Brew Ratio & Extraction Calculator
Calculate exact ground coffee weight in grams and total brew water volume across Pour-Over (V60, Kalita), Chemex, French Press, AeroPress, Espresso, and Cold Brew following SCA standards.
Calculator Inputs
Live Real-TimeTotal Hot Brew Water to Pour (g / ml)
Required Ground Coffee Dose (Grams)
18 g
Initial Bloom Water Pour (45s Bloom)
45 g
Detailed Calculation Breakdown
Calculation Methodology
Total Brew Water (g / ml) = Coffee Dose (g) * Brew Ratio Multiplier. Coffee Dose = Desired Brew Water / Brew Ratio.
Important Legal & Educational Disclaimer
The Specialty Coffee Association (SCA) Golden Cup Standard specifies a brew ratio between 1:15 and 1:17 for optimal extraction yield (18%-22%).
This calculator is designed for educational and informational purposes only based on public statutory frameworks. The outputs do not constitute binding financial, tax, or legal advice. We assume no liability for decisions made based on these estimations. Always verify with the relevant official authorities or a certified professional advisor.
Frequently Asked Questions
Related Calculators
Recommended tools and calculators tailored to your current calculation