Metric Conversion Chart Volume U.S. Units Metric Units 1 teaspoon (US) = 1/6 ounce 4.929 milliliters 1 tablespoon (US) = 0.5 ounce 14.79 milliliters 1 fluid ounce (US) = 1 ounce 29.57 milliliters 1 gill (US) = 4 ounces 118 milliliters 1 cup (US) = 8 ounces 236.6 milliliters 1 pint (US) = 16 ounces 473.2 milliliters 1 quart (US) = 32 ounces 946.3 milliliters 1 gallon (US) = 128 ounces 3.785 liters 1 cubic inch = 0.5541 ounces 16.387 milliliters 1 teaspoon (UK) = 1.2 teaspoons 6.16 milliliters 1 dessert spoon (UK) = 2.4 teaspoons 12.32 milliliters 1 tablespoon (UK) = 1.2 tablespoons 18.48 milliliters 1 fluid ounce (UK) = 0.96076 ounces 28.4 milliliters 1 gill (UK) = 1.2 gills 142 milliliters 1 breakfast cup (UK) = 1.2 cups 284 milliliters 1 pint (UK) = 1.2 pints 568 milliliters 1 quart (UK) = 1.2 quarts 1.136 liters 1 gallon (UK) = 1.2 gallons 4.546 liters 1 milliliter = 0.203 teaspoon l milliliter 1 centiliter = 2.03 teaspoons 10 milliliters 1 deciliter = 0.423 cup 100 milliliters 1 liter = 1.057 quarts 1000 milliliters 1 dekaliter = 2.642 gallons 10000 milliliters 1 teaspoon (metric) = 1.015 teaspoons 5 milliliters 1 tablespoon (metric) = 3.044 teaspoons 15 milliliters 1 standard cup = 1.0567 cups 250 milliliters