Coffee to Water Ratio Calculator

Calculate precise coffee-to-water ratios for perfect extraction and consistent flavor.

Coffee Ratio Standards

This calculator uses the Specialty Coffee Association's Golden Ratio standards:

Standard Ratios:

  • • Light: 1:18 (55g coffee per 1L water)
  • • Medium: 1:16 (62g coffee per 1L water)
  • • Strong: 1:14 (71g coffee per 1L water)
  • • Espresso: 1:2 (very concentrated)

Brewing Method Guidelines:

  • Drip Coffee: 1:16 ratio, medium grind
  • French Press: 1:15 ratio, coarse grind
  • Pour Over: 1:17 ratio, medium-fine grind
  • AeroPress: 1:12 ratio, fine grind
  • Cold Brew: 1:8 ratio, coarse grind
  • Espresso: 1:2 ratio, extra fine grind

Measurement Conversions:

  • 1 tablespoon = 5-7g coffee (varies by grind)
  • 1 cup = 8 fluid ounces = 240ml
  • 1 ounce = 28.35g
  • 1 liter = 33.8 fluid ounces

Pro Tips

  • • Use a kitchen scale for precise measurements
  • • Adjust ratio based on coffee bean freshness
  • • Darker roasts may need slightly less coffee
  • • Water temperature should be 195-205°F
  • • Keep detailed brewing notes for consistency
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