3 teaspoons=1 tablespoon=1/2 fluid ounce
2 tablespoons=1 fluid ounce
4 tablespoons=2 fluid ounces=1/4 cup
5 tablespoons plus 1 teaspoon=1/3 cup
16 tablespoons=8 fluid ounces=1 cup
16 fluid ounces=2 cups=1 pint
32 fluid ounces=4 cups=2 pints=1 quart
128 fluid ounces=16 cups=8 pints=4 quarts=1 gallon

Metric Conversions

Volume

U.S. to Metric
1 teaspoon=5 milliliters
1 tablespoon=15 milliliters
1/4 cup=59 milliliters
1 cup=236 milliliters
1 pint=473 milliliters
1 quart=946 milliliters
1 gallon=3.8 liters

Metric to U.S.
10 milliliters=2 teaspoons
30 milliliters=1 fluid ounce
100 milliliters=1/2 cup minus 1 tablespoon
500 milliliters=2 cups plus 2 tablespoons
1 liter=4 1/4 cups, or 1 quart plus 1/4 cup
2 liters=8 1/2 cups, or 1/2 gallon plus 1/2 cup


Weight-Mass

U.S. to Metric
1 ounce=28.4 grams
1 pound=454 grams=0.45 kilogram

Metric to U.S.
100 grams=3.5 ounces
500 grams=1.1 pounds
1 kilogram=2.2 pounds

Linear
1 centimeter=0.4 inch
1 inch=2.5 centimeters
1 meter=39.4 inches

Adapted from Williams-Sonoma Kitchen Companion: The A to Z Guide to Everyday Cooking, Equipment and Ingredients (Time-Life Books, 2000)