Calculator cluster
Health, economics & lifestyle
Caffeine estimates, daily limits, cafe vs home ROI, cost per cup and batch scaling.
Health, economics & lifestyle
Batch Brew Scaler
Scale a working coffee recipe from one cup to a crowd. Keeps brew ratio; outputs new dose, water and the scale factor.
Health, economics & lifestyle
Caffeine Content Calculator
Estimate milligrams of caffeine from dry dose, arabica vs robusta, and brew method. An extraction sketch, not a lab assay or medical advice.
Health, economics & lifestyle
Cost per Cup Calculator
Price a cup from bean price per kilogram, dose, waste percent and extras like filters or milk. Currency in, currency out.
Health, economics & lifestyle
Daily Caffeine Limit Calculator
Sketch a daily caffeine milligram cap from body weight and pregnancy status using public-health style rules of thumb. Educational only.
Health, economics & lifestyle
Home Barista vs Café Calculator
See how many days until a home espresso setup beats café prices, plus yearly savings. Machine cost versus the gap per drink.
Other clusters
- Brew ratios & dosingCoffee-to-water ratios, espresso yield, cold brew dilution, flash brew and Americano balance.
- Grind size & dialing inClick conversion between grinders, espresso dial-in, TDS, extraction yield and burr life.
- Water chemistryBarista water recipes, GH/KH, descaling intervals, acidity buffering and brew bypass.
- Coffee roastingWeight loss, rate of rise, development time ratio, green density and degassing windows.
- Advanced toolsMilk steaming, pump pressure and flow, thermal loss, siphon steep time and moka capacity.