MATH FORMULAS
A. WEIGHTS AND MEASURES
Dry Measure
2 cups = 1 pint (pt)
2 pints = 1 quart (qt)
4 quarts = 1 gallon (gal)
8 quarts = 1 peck (pk)
4 pecks = 1 bushel (bu)
Liquid Measure
3 teaspoons (tsp) = 1 tablespoon (tbsp)
16 tablespoons = 1 cup
2 cups = 1 pint
16 fluid ounces (oz) = 1 pint
2 pints = 1 quart
4 quarts = 1 gallon
31.5 gallons = 1 barrel (bbl)
231 cubic inches = 1 gallon
7.48 gallons = 1 cubic foot (cu ft)
Weight
16 ounces = 1 pound (lb)
2,000 pounds = 1 short ton (T)
2,240 pounds = 1 long ton
Distance
12 inches = 1 foot (ft)
3 feet = 1 yard (yd)
5 1/2 yards = 1 rod (rd)
16 1/2 feet = 1 rod
1,760 yards = 1 statute mile (mi)
5,280 feet = 1 statute mile
Area
144 square inches = 1 square foot (sq ft)
9 square feet = 1 square yard (sq yd)
30 1/4 square yards = 1 square rod
160 square rods = 1 acre (A)
640 acres = 1 square mile (sq mi)
Volume
1,728 cubic inches = 1 cubic foot (cu ft)
27 cubic feet = 1 cubic yard (cu yd)
Counting Units
12 units = 1 dozen (doz)
12 dozens = 1 gross
144 units = 1 gross
24 sheets = 1 quire
480 sheets = 1 ream
Equivalents
1 cubic foot of water weighs
(approx) = 1,000 ounces
62.5 pounds
1 gallon of water weighs 8 1/3 pounds (approx)
1 cubic foot = 7.48 gallons
1 inch = 2.54 centimeters
1 foot = 39.48 centimeters
1 meter = 39.37 inches
1 liter = 1.05668 quarts (liquid) = 0.90808 quart
(dry)
1 nautical mile = 6,080 feet (approx)
1 fathom = 6 feet
1 shot of chain = 15 fathoms
AII-2
