How can we help?

You can also find more resources in our Help Center.

Measurement Systems

STUDY
PLAY
Household System
3 teaspoons = 1 tablespoon
2 tablespoons = 1 fluid ounce
8 fluid ounces = 1 cup
2 cups = 1 pint
2 pints = 1 quart
4 quarts = 1 gallon
Household to Metric
1 teaspoon = 5 mL
1 tablespoon = 15 mL
1 fluid oz = 30 mL
1 cup = 240 mL
2.2 pounds = 1 kg
1 grain = 60-65 mg
Apothecary Weights
20 grains = 1 scrupple
3 scruples = 1 dram
8 drams = 1 ounce
12 ounces = 1 pound
Apothecary Fluids
60 minims = 1 fluid dram
8 fluid drams = 1 fluid ounce
16 fluid ounces = 1 pint
2 pints = 1 quart = 32 fl oz
4 quarts = 1 gallon = 128 fl oz
International Units (IU)
measurement of a drug in terms of its action, not its physical weight
Milliequivalent (mEq)
measurement based on the number of grams of a drug in 1 mL of normal solution
Temperature Conversions
C = (F - 32) / 1.8
F = 1.8C + 32