| WEIGHTS AND MEASURES | ||||||
| Troy Weight | Surveyors' Measure | |||||
| Used for weighing gold, silver, and jewels | ||||||
| 24 grains | = | 1 pwt. | 7.92 inches | = | 1 link | |
| 20 pwts. | = | 1 ounce | 25 links | = | 1 rod | |
| 12 ounces | = | 1 pound | 4 rods | = | 1 chain | |
| Apothecaries' Weight | 10 sq. chains or 160 sq. rods | = | 1 acre | |||
| 20 grains | = | 1 scruple | 640 acres | = | 1 square mile | |
| 34 scruples | = | 1 dram | 36 squre miles (6 miles square) | = | 1 township | |
| 8 drams | = | 1 ounce | Cubic Measure | |||
| 12 ounces | = | 1 pound | 1,728 cubic inches | = | 1 cubic foot | |
| The ounce and pound in this are the same as in troy weight. | 27 cubic feet | = | 1 cubic yard | |||
| Avoirdupois Weight | 2,150.42 cubic inches | = | 1 standard bushel | |||
| 27-11/32 grains | = | 1 dram | 231 cubic inches | = | 1 standard gallen | |
| 16 drams | = | 1 ounce | 1 cubic foot | = | about 4/5 of bushel | |
| 16 ounces | = | 1 pound | 1 cubic foot | = | 7-1/2 gallons of water | |
| 25 pounds | = | 1 quarter | 128 cubic feet | = | 1 cord of wood | |
| 4 quarters | = | 1 cwt. | 40 cubic feet | = | 1 ton (shipping) | |
| 2,000 pounds | = | 1 short ton | Metric Equivalents | |||
| 2,240 pounds | = | 1 long ton | ||||
| Dry Measure | ||||||
| 2 pints | = | 1 quart | Linear Measure | |||
| 8 quarts | = | 1 peck | 1 centimeter | = | 0.03937 inches | |
| 4 pecks | = | 1 bushel | 1 decimeter | = | 3.937 inches = 0.328 foot | |
| 36 bushels | = | 1 chaldron | 1 meter | = | 39.37 inches = 1.0936 yards | |
| Liquid Measure | 1 dekameter | = | 1.9884 rods | |||
| 4 gills | = | 1 pint | 1 kilometer | = | 0.62137 mile | |
| 2 pints | = | 1 quart | 1 inch | = | 2.54 centimeters | |
| 4 quarts | = | 1 gallon | 1 foot | = | 3.048 decimeters | |
| 31-1/2 gallens | = | 1 barrel | 1 yard | = | 0.9144 meter | |
| 2 barrels | = | 1 hogshead | 1 rod | = | 0.5029 dekameter | |
| Time Measure | 1 mile | = | 1.6093 kilometers | |||
| 60 seconds | = | 1 minute | Square Measure | |||
| 60 minutes | = | 1 hour | 1 square centimeter | = | 0.1550 square inch | |
| 24 hours | = | 1 day | 1 square decimeter | = | 0.17076 square foot | |
| 7 days | = | 1 week | 1 square meter | = | 1.196 square yards | |
| 28, 20, or 31 days | = | 1 calendar month | 1 square acre | = | 3.954 square rods | |
| (30 days = 1 month in computing interest) | 1 hectare | = | 2.47 acres | |||
| 365 days | = | 1 year | 1 square kilometer | = | 0.386 square mile | |
| 366 days | = | 1 leap year | 1 square inch | = | 6.452 square centimeters | |
| Long Measure | 1 square foot | = | 9.2903 square decimeters | |||
| 12 inches | = | 1 foot | 1 square yard | = | 0.8361 square meter | |
| 3 feet | = | 1 yard | 1 square rod | = | 0.2529 acre | |
| 5-1/2 yards | = | 1 rod | 1 acre | = | 0.4047 hectare | |
| 40 rods | = | 1 furlong | 1 square mile | = | 2.59 square kilometers | |
| 8 furlongs | = | 1 statue mile | Weights | |||
| 3 miles | = | 1 league | 1 gram | = | 0.03527 ounce | |
| Cloth Measure | 1 kilogram | = | 2.2046 pounds | |||
| 2-1/4 inches | = | 1 nail | 1 metric ton | = | 1.1023 English tons | |
| 4 nails | = | 1 quarter | 1 ounce | = | 28.35 grams | |
| 4 quarters | = | 1 yard | 1 pound | = | 0.4536 kilometer | |
| Square Measure | 1 English ton | = | 0.9072 metric ton | |||
| 144 square inches | = | 1 square foot | Approximate Metric Equivalents | |||
| 9 square feet | = | 1 square yard | 1 decimeter | = | 4 inches | |
| 30-1/4 square yards | = | 1 square rod | 1 meter | = | 1.1 yard | |
| 40 square raods | = | 1 rood | 1 kilometer | = | 5/8 of a mile | |
| 4 roods | = | 1 acre | 1 hectare | = | 2-1/2 acres | |
| 640 acres | = | 1 square mile | 1 stere or cubic meter | = | 1/ of a cord | |
| Paper Measure | 1 liter | = | 1.06 quart liquid, .9 quart dry | |||
| 24 sheets | = | 1 quire | 1 hektoliter | = | 2-1/2 bushels | |
| 20 quires | = | 1 ream (480 sheets) | 1 kilogram | = | 2-1/5 pound | |
| 2 reams | = | 1 bundle | 1 metric ton | = | 2,200 pounds | |
| 5 bundles | = | 1 bale | ||||