Coffee Ratio Calculator

Stop guessing. Dial in your Moccamaster.

A visual calculator built for one machine. Drag the water line, pick your strength, get the exact grams of coffee. Every time.

Try the Calculator
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Your Moccamaster, mapped.

The tank has cup markings. Your bag of coffee lists grams. The math in between? That's where BrewDial lives. Drag the water line to match your tank, and we handle the rest.

6 cups at 1:16
47g
of ground coffee
Why BrewDial
01

Built for one machine

Not a generic calculator. BrewDial knows your Moccamaster's exact cup markings, tank capacity, and the quirks that make each brew different.

02

Drag, don't type

Slide the water line up or down in quarter-cup increments. See the gram count update in real time. No math, no charts, no guessing.

03

Dial your strength

Standard 1:16 ratio is the default. Want it stronger? Weaker? One tap adjusts the ratio and recalculates everything instantly.

Three seconds to the perfect dose.

01

Set the water line

Drag to match how much water you put in the tank. Quarter-cup precision.

02

Pick your ratio

1:16 is the standard for drip. Go stronger or lighter with one tap.

03

Weigh your coffee

BrewDial shows you the exact grams. Scoop, brew, drink.

No more kitchen wall charts.

Ten million Moccamasters have been sold. Not one came with a ratio calculator. BrewDial fixes that.

Start Brewing