Drip / Filter
1:16
Trusted by coffee enthusiasts & baristas
Perfect Coffee,
Every Brew
Calculate the exact coffee-to-water ratio for any brew method: drip, pour over, espresso, cold brew, and more.
Based on SCA Golden Cup standards
Coffee Ratio Calculator
Based on SCA Golden Cup standards
Based on SCA Golden Cup Standard Free, no signup
Common brew ratios
A starting point for every method
Ratios calibrated to the SCA Golden Cup Standard. Adjust to taste once you have a baseline.
Pour Over
1:16
French Press
1:14
Espresso
1:2
Cold Brew Conc.
1:5
AeroPress
1:13
Browse by brew method
More free tools
Dial in espresso. Keep a brew log.
Every tool runs in your browser. No account, no data leaves your device.
Espresso Dose & Yield
Dose, yield and brew ratio
Brew Log
Track brews, compare changes
Collections
One topic, covered end to end
Beginner Path
A guided set of pages for a first good cup: kit, ratio, and the first method.
Explore collection →Pressure Brewing
Moka pot and the espresso model, side by side with the filter world.
Explore collection →Cold Brew Path
Cold brew concentrate and the long steep, with a dilution guide.
Explore collection →Source Notes
The external standards and editorial notes behind every starting point.
Explore collection →Guides & methods
How each method works
Steps you can follow, with sources you can check.
Pour Over Coffee: Bloom, Staged Pours, 1:16
Pour over brews one cup at a time by hand. Start from a 1:16 ratio and adjust to taste.
Drip Coffee: Batch Brewing with a Machine
Batch brewing with a drip machine and a 1:15–1:18 starting point.
French Press: Immersion and a 4-Minute Steep
Immersion brewing: 4-minute steep, press slowly, 1:12–1:15.
The basics
What is a coffee ratio calculator?
A ratio calculator takes the guesswork out of brewing by telling you exactly how much coffee to use for the amount of water you have. The core calculation is simple: coffee (g) = water (ml) ÷ ratio. The ratio varies by brew method, and that is where most home brewers go wrong.
Every result includes a grind recommendation and a practical brew tip, so you know how to use the number rather than just what it is.
- Free, weight-based tools with on-page tuning
- Method presets calibrated to SCA Golden Cup
- No account, no tracking of your brews
7Brew methods
3Free tools
1:16SCA baseline
0Signups required
In depth
How to use & how we calculate
How to use this coffee ratio calculator
Pick a brew method, then choose whether you know your water amount, your coffee amount, or how many cups you want. Enter the number and the calculator returns the matching value plus a ratio you can reuse.
How we calculate your brew ratio
We use weight-based ratios from the SCA Golden Cup Standard: coffee (g) × ratio = water (ml). Strength adjusts the ratio within the method's sensible range — lighter settings add water, stronger settings reduce it.
Why should I use a scale instead of tablespoons?
Volume measurements vary with grind size, roast density and how the scoop is filled. A 0.1 g scale removes that variance and makes a recipe repeatable.
What grind size should I use for each method?
Coarse for French press and cold brew, medium for drip, medium-fine for pour over and AeroPress, fine for espresso and Moka pot. The result panel shows the recommendation for the selected method.
蓝儒科技 Team
We are coffee enthusiasts who built a brewing calculator we actually use every morning. Our formulas are calibrated to Specialty Coffee Association (SCA) standards.
