My Coffee Calculator

Coffee Calculator is a precision brewing companion for anyone who believes great coffee starts with the right measurements.

Dial in your perfect coffee-to-water ratio with an intuitive drag-based calculator. Adjust one value and watch the other update in real time — no guesswork, just consistently delicious results.

SMART CALCULATOR • Real-time coffee-to-water ratio display • Drag to adjust with velocity-based speed — slow for precision, fast for big changes • Step buttons for fine-tuning • Supports grams, ounces, milliliters, and fluid ounces

BREWING RECIPES • 8 built-in recipes: V60, Espresso, AeroPress, French Press, Batch Brew, Iced Coffee, Cold Brew, and Turkish Coffee • Tap any recipe to load it into the calculator instantly • Create and save your own custom recipes • Includes extras like ice amounts and brewing notes

WHERE TO BUY • Curated directory of premium online bean roasters and accessory shops • Handpicked offline coffee shops in Prague, Munich, Berlin, Copenhagen, and Tokyo • One-tap directions via Apple Maps

DESIGNED WITH CARE • Warm, coffee-inspired color palette with dark and light mode • Custom Fjord One typeface for a premium feel • Smooth animations and haptic feedback • Built with love in Prague

YOUR COFFEE PRIVACY MATTERS Coffee Calculator does not collect, store, or share any personal information. No analytics, no tracking, no third-party services. All your recipes and settings stay on your device.