SQUARE MEASURE
| 9 square feet | 1 square yard |
| 30-1/4 square yards | 1 square rod |
| 40 square rods | 1 rood |
| 4 roods | 1 acre |
| 640 acres | 1 square mile |
| An acre is 43,560 square feet. | |
DRY MEASURE
| 2 pints | 1 quart |
| 8 quarts | 1 peck |
| 4 pecks | 1 bushel |
LIQUID MEASURE
| 4 gills | 1 pint |
| 2 pints | 1 quart |
| 4 quarts | 1 gallon |
TROY WEIGHT
| 24 grains | 1 pennyweight |
| 20 pennyweights | 1 ounce |
| 12 ounces | 1 pound |
AVOIRDUPOIS WEIGHT
| 16 drams | 1 ounce |
| 16 ounces | 1 pound |
| 25 pounds | 1 quarter |
| 4 quarters | 1 hundred |
| 20 hundreds | 1 ton |