Ratio is a minimalist coffee brewing calculator designed for coffee enthusiasts who value precision and simplicity. Calculate the perfect coffee-to-water ratio for pour over, French press, Chemex, V60, AeroPress, and any manual brewing method with an elegant interface that stays out of your way. PRECISION BREWING MADE SIMPLE Every great cup of coffee starts with the right ratio. Ratio eliminates the guesswork from manual coffee brewing by instantly calculating your water requirements based on your coffee dose and preferred brewing ratio. Simply set your coffee amount in grams and adjust your ratio to see the exact water measurement you need for a perfectly balanced extraction every time. DESIGNED FOR COFFEE LOVERS Whether you follow the Specialty Coffee Association golden ratio guidelines or prefer a stronger or lighter brew, Ratio adapts to your taste. Adjust your coffee-to-water ratio anywhere from 1:1 to 1:100 to accommodate any brewing style, from concentrated cold brew concentrate to light filter coffee. The intuitive slider interface provides haptic feedback as you dial in your perfect settings, making adjustments feel natural and precise. BEAUTIFUL MINIMALIST INTERFACE Ratio features a stunning dark interface with cream typography that looks elegant in any kitchen. The distraction-free design focuses entirely on what matters: your coffee, your ratio, and your water. No cluttered screens, no unnecessary features, no advertisements. Just a beautiful tool that helps you brew better coffee. KEY FEATURES Coffee dose adjustment from 1 to 300 grams accommodates everything from a single cup pour over to large batch brewing for gatherings and events. Ratio adjustment from 1:1 to 1:100 covers every brewing method and personal preference, from espresso-style concentrations to light Scandinavian filter coffee. Instant water calculation updates in real time as you adjust your inputs, showing you exactly how much water to use down to the gram. Haptic feedback provides tactile confirmation as you scroll through values, with distinct feedback when reaching minimum and maximum limits. Automatic preference saving remembers your last used settings so you can start brewing immediately every morning without reconfiguring the app. Offline functionality requires no internet connection, ensuring the app works perfectly whether you are brewing at home, camping, traveling, or anywhere your coffee journey takes you. Privacy focused design stores all data locally on your device with no accounts required, no data collection, and no tracking. PERFECT FOR EVERY BREWING METHOD Pour over enthusiasts will appreciate the precision that Ratio brings to Hario V60, Kalita Wave, Chemex, Origami, and other dripper brewing. Dial in the classic 1:15 to 1:17 ratio recommended by championship baristas or experiment to find your personal sweet spot. BREWING BETTER COFFEE Understanding coffee ratios is fundamental to improving your home brewing. The amount of water relative to coffee grounds directly impacts extraction, affecting the balance of acids, sugars, and bitter compounds in your final cup. Too little water creates under-extracted, sour, and weak coffee. Too much water leads to over-extraction, bitterness, and hollow flavors. Ratio helps you find and repeat the perfect balance. Most specialty coffee professionals recommend starting with a 1:16 or 1:17 ratio for filter coffee, meaning 16 to 17 grams of water for every gram of coffee. From this baseline, you can adjust based on your beans, roast level, grind size, and personal taste preferences. Lighter roasts often benefit from slightly higher ratios while darker roasts may taste better with less water. Download Ratio today and bring precision to your coffee ritual.
