Coffee Calc icon
Coffee Calc A web app for iPhone

Coffee Calc is a web app for iPhone that helps you make great coffee by getting the brewing ratio just right. Switch between three units of measurement for coffee/water, and if your coffee is too strong or weak, adjust the brewing ratio.

  • Tap the    icon below.
  • Then, tap Add to Home Screen.
This web app is currently designed for iPhone only. To install, open this URL in an iPhone's Safari app: coffeecalc.com
This web app can only be installed from iOS Safari. To install, open this URL in Safari: coffeecalc.com
To install on your iPhone, open this URL in the Safari app, or text the URL to your phone:
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COFFEE CALC

16 g
16 g
0.56 oz
3 tbsp
12 fl. oz.
12 fl oz
354 mL
1.5 cups
Adjust brewing ratio
coffee (g) : water (fl oz)
Standard Ratio 1.33 : 1 Tasting Ratio 1.75 : 1 Custom 1.33 : 1
Coffee fact

The brewing temperature of water used should be between 195°F (91°C) and 205°F (96°C). Water less than 195°F won’t extract properly, and boiling water (212°F) will burn the coffee.

About this app (v1.0.0)

Contact: feedback@coffeecalc.com