Coffee tools, zero fluff
Brew it
right.
No signup. No fluff.
Eight free tools to help you brew better coffee at home.
Brewax Brew Ratio
Calculate coffee-to-water ratios for any brewing method. Espresso, pour over, French press, and more.
→Brewax Filter Coffee Calculator
Coffee ratios for filter coffee, pour over, V60, Chemex and Kalita Wave. Choose cups, grams, or ml.
→Brewax Unit Converter
Convert between grams, ounces, tablespoons, teaspoons, and cups instantly — two-way, all fields live.
→Brewax Temperature Guide
Ideal brewing temperatures for every method, in °C and °F. Because temperature changes everything.
→Brewax Extraction Timer
Time your extraction with method-specific targets. Visual feedback: too fast, optimal, or too slow.
→Brewax Caffeine Calculator
Estimate your total caffeine intake by cup count, brewing method, and cup size. Includes FDA daily reference.
→Brewax Espresso Yield
Calculate brew ratio and extraction verdict from dose and yield. Ristretto, normale, or lungo — instantly.
→Brewax Cold Brew Calculator
Calculate coffee and water for cold brew. Choose regular or concentrate, set brew time, see exactly when it's ready.
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