U.S. Measurement Equivalents

A few grains/pinch/dash, (dry) = Less than 1/8 teaspoon
A dash (liquid) = A few drops
3 teaspoons = 1 tablespoon
1/2 tablespoon = 1 1/2 teaspoons
1 tablespoon = 3 teaspoons
2 tablespoons = 1 fluid ounce
4 tablespoons = 1/4 cup
5 1/3 tablespoons = 1/3 cup
8 tablespoons = 1/2 cup
8 tablespoons = 4 fluid ounces
10 2/3 tablespoons = 2/3 cup
12 tablespoons = 3/4 cup
16 tablespoons = 1 cup
16 tablespoons = 8 fluid ounces
1/8 cup = 2 tablespoons
1/4 cup = 4 tablespoons
1/4 cup = 2 fluid ounces
1/3 cup = 5 tablespoons plus 1 teaspoon
1/2 cup = 8 tablespoons
1 cup = 16 tablespoons
1 cup = 8 fluid ounces
1 cup = 1/2 pint
2 cups = 1 pint
2 pints = 1 quart
4 quarts (liquid) = 1 gallon
8 quarts (dry) = 1 peck
4 pecks (dry) = 1 bushel
1 kilogram = approx 2 pounds
1 liter = approx 4 cups or 1 quart

Approx. Metric Equivalents by Volume

U.S.   Metric
1/4 cup = 60 milliliters
1/2 cup = 120 milliliters
1 cup = 230 milliliters
1 1/4 cups = 300 milliliters
1 1/2 cups = 360 milliliters
2 cups = 460 milliliters
2 1/2 cups = 600 milliliters
3 cups = 700 milliliters
4 cups (1 quart) = .95 liter
1.06 quarts = 1 liter
4 quarts (1 gallon) = 3.8 liters

Approx. Metric Equivalents by Weight

U.S.   Metric
1/4 ounce = 7 grams
1/2 ounce = 14 grams
1 ounce = 28 grams
1 1/4 ounces = 35 grams
1 1/2 ounces = 40 grams
2 1/2 ounces = 70 grams
4 ounces = 112 grams
5 ounces = 140 grams
8 ounces = 228 grams
10 ounces = 280 grams
15 ounces = 425 grams
16 ounces (1 pound) = 454 grams

 Unusual Weights and Measurements

1 bit = 2 pinches
1 dollop = 2 smidgens (2 rounded tablespoons)
1 gaggle = 3 dollops (a small measure)
1 gill = 2/3 of a cup (or a little less)
1 jigger = 1-1/2 Fluid Ounces
1 pinch = the amount between the tip of one’s finger and thumb
1 pony = 1 Fluid Ounce
1 smidgen = 4 bit (or 1 rounded tablespoon)
1 speck = less than 1/8 of a teaspoon
A few grains = less than 1/8 of a teaspoon
Juice of 1 lemon = 2 to 3 tablespoons
Juice of 1 orange = about 1/2 cup

For baking pan measurements, click here.

*source for the information above: http://www.jewishrecipes.org