Coffee Ratio - Brew Calculator

Calculate the perfect coffee-to-water ratio for any brew method. Works fully offline. No account, no ads, no tracking. SUPPORTED BREW METHODS • Pour over (V60, Kalita Wave, Chemex) • Espresso • French Press • AeroPress • Cold Brew FEATURES • Two-way calculation (coffee → water, water → coffee) • Customizable ratios within recommended ranges • Built-in brew timer with haptic feedback • Imperial and metric units (g/oz, ml/fl oz, °C/°F) • Recommended water temperature, grind size, and brew time for each method • Fully offline — your data never leaves your device WHY THIS APP This is a focused calculator. No subscriptions. No accounts. No data collection. Buy it once, use it forever. REFERENCE VALUES Brewing parameters reflect widely-accepted ranges from the Specialty Coffee Association and major brewing equipment manufacturers. Adjust within recommended ranges to match your taste. PRIVACY This app collects no data. All preferences are stored locally on your device.