Coffee Ratio Calculator

Coffee Ratio Calculator

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Quick Brew Chart

Coffee (g) Water 1:15 (ml) 1:16 1:17 1:18

☕ Coffee Ratio Calculator – Brew with Precision, Every Time

Whether you’re just getting into coffee or you’ve been perfecting your brew for years, one thing remains true: the right ratio of coffee to water is essential for a balanced and flavorful cup. The Coffee Ratio Calculator is designed to help you master this with ease — no math, no confusion, just great coffee.

Why Coffee Ratios Matter

Coffee brewing is both art and science. The brew ratio — how much water you use per gram of coffee — affects strength, flavor, body, and extraction. A too-weak brew tastes watery and dull; too strong, and it may be bitter or overpowering. That’s why most professionals recommend common ratios like 1:15 to 1:18 (1g coffee to 15–18ml water) depending on your taste and brew method.

But doing the math every time? That’s where this tool comes in.

 How It Works

With this Coffee Ratio Calculator, brewing becomes effortless:

  1. Choose your brew mode – Start by selecting whether you want to calculate based on:

    • How much coffee you’re using (grams), or

    • How much water you want to brew (ml)

  2. Select your preferred brew ratio – Common choices like 1:15, 1:16, 1:17, and 1:18 are available, or pick the one you like best.

  3. Enter your value – Type in either your coffee weight or target water volume.

  4. Instant calculation – The tool automatically shows you:

    • How much water you need (if starting with coffee)

    • How much coffee to use (if starting with water)

  5. Bonus conversions – Instantly get the equivalent in:

    • Tablespoons (approx. 1 tbsp = 5g ground coffee)

    • Fluid ounces (1 oz = 29.57 ml)

Example Use Cases

  • You’re using 20g of coffee and want to brew at a 1:17 ratio → You’ll need 340ml of water

  • You want to brew 500ml of coffee at 1:16 ratio → You’ll need 31.25g of coffee

  • You only have a tablespoon at home? No worries. Enter your value and get an instant tbsp equivalent

 Quick Brew Chart Included

No time to calculate? We’ve included a handy brew chart that shows how much water you need for popular coffee weights at different ratios — from 10g to 40g.

Built for Every Coffee Lover

Whether you’re brewing your first cup ever, dialing in a new grinder or beans, or just want to make coffee at home faster and more consistent, this tool is for you.

Ready to Brew Better?

Use the Coffee Ratio Calculator today and take the guesswork out of your morning ritual. Because life’s too short for bad coffee.

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