Coffee Ratio Calculator

What is the Coffee Ratio Calculator?

Calculate coffee grounds and water for any brew ratio. The brew ratio — grams of water per gram of coffee — controls strength, and this calculator does the math for any amount.

How to use the Coffee Ratio Calculator

1. Enter your water, your ratio.
2. Results update automatically as you type; you can also press Calculate.
3. Read the output: coffee needed, tablespoons (≈5 g each), approx. brewed coffee.
4. Use the 📊 chart to see the result visually, then copy or share it.

Formula and method

Worked example

With water = 500 g / mL, ratio = 16, the Coffee Ratio Calculator returns coffee needed: 31.3 g; tablespoons (≈5 g each): 6.3; approx. brewed coffee: 438 mL.

Where the Coffee Ratio Calculator helps in real life

You are making a pour-over and want a 1:16 ratio for 500 g of water. The calculator gives 31 g of coffee so your cup tastes consistent every morning.

You are brewing for guests and need to scale up. Entering a larger water amount keeps the strength the same.

Common mistakes to avoid

• Measuring coffee by spoons instead of weight.
• Changing ratio and grind size at the same time.
• Forgetting the water grounds absorb.
• Using the same ratio for espresso and drip.

💡 Practical tip: If coffee tastes bitter, try a coarser grind before changing the ratio.

Tips for better results

• Use a kitchen scale for accuracy.
• Start around 1:15 to 1:17 for drip and adjust.
• Change one variable at a time.

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