Calculate coffee grounds needed from water weight and brewing ratio.
Coffee Ratio Calculator
Coffee Ratio
Coffee = Water / Ratio
g
Coffee Needed
18.8g
Coffee : Water
About this calculator
What is the Coffee Ratio Calculator?
Coffee Ratio Calculator calculate coffee grounds needed from water weight and brewing ratio. It is part of Home of Calculators's Cooking & Food Calculators suite for recipe scaling, conversions, cooking times, and food preparation. The calculator is designed for cooks, bakers, home chefs, but anyone can use it. No signup, no ads, no tracking. Just accurate math, computed locally in your browser using a BigNumber-precision math engine.
Formula Reference
The Formula
Coffee (g) = Water (g) / Ratio
Coffee brewing ratio determines the strength of your brew. A ratio of 1:15 is strong, 1:16 is standard, and 1:17 is mild. Always measure by weight (grams) for consistency, not by volume.
Variables
WaterWater weight (g)RatioBrewing ratio (1:X)Worked Example
Water = 300Ratio = 16
Result: 18.75 g coffee
How to use the Coffee Ratio Calculator
- 1
Decide your ratio
Choose 1:15 for strong, 1:16 for standard, 1:17 for mild coffee.
- 2
Weigh your water
Measure the water in grams.
- 3
Divide by ratio
Coffee grounds (g) = Water (g) / Ratio number.
Quick tips
- All calculations run locally in your browser; your data never leaves your device.
- For best results on mobile, rotate to landscape when entering many values.
- Bookmark this page to come back to your calculation anytime.
- Need a different calculator? Try our visual builder to create your own.
Why Home of Calculators
- 100% private (calculations run in your browser)
- 128-bit BigNumber precision (no rounding errors)
- Works on any device: phone, tablet, desktop
- Free forever (no signup, no ads, no upsells)
Frequently asked questions
Is the Coffee Ratio accurate?
+
Yes. Home of Calculators uses a BigNumber-precision math engine (64-128 decimal digits) to ensure calculations are accurate. We run 96+ automated tests covering unit conversion, financial formulas, health formulas, and more. For critical decisions (financial, medical, legal), we still recommend consulting a qualified professional.
Is the Coffee Ratio Calculator free?
+
Yes. Every calculator on Home of Calculators is 100% free, with no signup, no ads, and no hidden fees. The entire platform is free forever.
Do you store the values I enter?
+
No. All calculations happen in your browser. We never see, store, or transmit your inputs to any server. Your data stays on your device.
Can I use the Coffee Ratio on my phone?
+
Yes. Home of Calculators is fully responsive and works on any device (phone, tablet, laptop, or desktop). The interface adapts to your screen size.
Can I embed this calculator on my own website?
+
Yes. Click the "Share" button to get an iframe embed code. The embedded calculator will look like any other Home of Calculators widget. You can also build a fully customized version using our visual builder.
Can I build my own custom calculator?
+
Absolutely. Home of Calculators's visual builder lets you add fields, write formulas, choose a theme, and brand the result with your own logo, all without writing code.