# The US Customary System of Measures

The following are the English System of measurement

**Length**

12 inches = 1 foot

3 feet = 1 yard

220 yards = 1 furlong

8 furlongs = 1 mile

5 280 feet = 1 mile

1 760 yards = 1 mile

**Area**

144 square inches = 1 square foot

9 square feet = 1 square yard

4 840 square yards = 1 acre

640 acres = 1 square mile

1 square mile = 1 section

36 sections = 1 township

**Volume**

1,728 cubic inches = 1 cubic foot

27 cubic feet = 1 cubic yard

**Mass**

437.5 grains = 1 ounce

16 ounces = 1 pound

14 pounds = 1 stone

100 pounds = 1 hundredweight

20 hundredweights = 1 ton

**Capacity (Dry)**

16 fluid ounces = 1 pint

2 pints = 1 quart

8 quarts = 1 peck

4 pecks = 1 bushel

**Capacity (Liquid)**

4 gills = 1 pint

2 pints = 1 quart

4 quarts = 1 gallon

**Apothecaries' Measures**

60 minims = 1 fluid dram

8 fluid drams = 1 fluid ounce

16 fluid ounces = 1 pint

**Apothecaries' Weights**

20 grains = 1 scruple

3 scruples = 1 dram

8 drams = 1 ounce

**Troy Weights**

24 grains = 1 pennyweight

20 pennyweights = 1 ounce