Weigh it before you brew it.
Coffee is 98% water. The ratio decides whether it tastes sharp, flat, or right, and the correct ratio changes by method. These calculators use Specialty Coffee Association brewing targets as their starting point.
Quick Ratio Check
Pour-over defaults shown. Every method has its own calculator.
Open full toolNumbers, not house style
Each calculator’s default ratio matches SCA brewing targets. You can still adjust it, but you start from a documented baseline.
One tool per method
A Moka pot and a Chemex extract coffee differently. Ratio, grind size, and time are calculated separately for each of the 27 methods.
Gear reviewed on results
Product picks are based on what the machine produces in the cup, including the ones that did not make the list.
Pick your brew method
French Press
Coarse grind, full immersion, four-minute steep.
Calculate 1 : 16Pour Over
Controlled pour, medium-fine grind, clean cup.
Calculate 1 : 2Espresso
Dose and yield for a balanced 25–30 second shot.
Calculate 1 : 14AeroPress
Fast steep and press, forgiving on grind size.
Calculate 1 : 17Chemex
Thick paper filter, medium-coarse grind, lighter body.
Calculate 1 : 7Moka Pot
Stovetop steam pressure, fine grind, bold cup.
Calculate 1 : 15V60
Spiral pour, medium-fine grind, sharp clarity.
Calculate 1 : 10Turkish
Powder-fine grind, unfiltered, simmered in a cezve.
Calculate 1 : 16Folgers
Ratios adjusted for Folgers’ classic and dark grinds.
Calculate 1 : 16Kicking Horse
Ratios adjusted for Kicking Horse’s darker roasts.
Calculate 1 : 16Bones Coffee
Ratios for Bones Coffee’s flavored and single-origin bags.
CalculateBrew water, gear, technique
French Press vs Drip: Ultimate Guide to Coffee Brewing
Metal filtration versus paper filtration produces two different cups from the same beans.
What Does SCA Mean for Coffee: Standards, Scoring & Brewing
How specialty-grade coffee is classified and scored before it reaches a roaster.
Third Wave Coffee Guide: Artisanal Brewing & Flavor Science
Cupping protocol and the SCA flavor wheel, explained in plain terms.
Coffee makers people buy
CoffeeBumper is an Amazon Associate and earns from qualifying purchases made through these links.
Do not know your method’s ratio?
Start from the calculator hub. Every method is listed with its default ratio up front.





