Sixteen to One

Sixteen to One is a coffee-to-water ratio calculator. Pick your brew method, enter your amount, and get the ratio — in whatever units you prefer.

No account. No ads. No subscription. No data collection. Just coffee math.

HOW IT WORKS

Pick a brew method — pour-over, Chemex, French press, espresso, cold brew, drip, or AeroPress — and it loads with the standard ratio. Type in how much coffee you have or how much water you want, and the app calculates the rest. Adjust the ratio with a slider if you like it stronger or lighter.

FEATURES

Works in grams, milliliters, cups, fluid ounces, tablespoons, and ounces — use whatever you’re comfortable with
Bi-directional calculation — start from coffee or water
Method presets — pour-over (16:1), Chemex (16:1), French press (15:1), espresso (2:1), cold brew (8:1), drip (17:1), AeroPress (15:1)
Adjustable ratio slider — fine-tune to your taste
Brew guidance — temperature, grind size, and brew time for each method, adjusted by roast type
Save favorites — store your go-to recipes for one-tap access
Dark mode — for early morning brewing sessions
PRIVACY FIRST

Sixteen to One is completely offline. It makes zero network requests. Your preferences are stored locally on your device and never leave it. We collect no data of any kind.

LIGHTWEIGHT

No bloat, no feature creep. Installs in seconds, launches instantly.

Sixteen to One is a Vyttle app — small by design.