| Temperatures | Weights | ||
| Fahrenheit | Celsius | Avoirdupois | Metric |
| 32 (freezing) | 0 | 0.035 ounces (oz.) | 1.0 gram (g.) |
| 41 | 5 | 1.0 oz. | 28.57 g. |
| 50 | 10 | 16 oz. = 1 pound (lb.) | 454 g. |
| 68 | 20 | 2.2 lbs. | 1.0 kilogram (kg.) |
| 86 | 30 | 2000 lbs. = 1 ton (t.) | 909.09 kg. |
| 95 | 35 | ||
| 104 | 40 | ||
| 212 (boiling) | 100 | ||
| To change F to C, subtract 32 and multiply by 5/9. | To change C to F, multiply C by 9/5 and add 32. |
| Distances | Volume | ||
| U.S. Measures | Metric | U. S. Measures | Metric |
| 0.39 inches (in.) | 1 centimeter (cm.) | 1 cup = 8 oz. | 0.24 liters (l.) |
| 1.0 in. | 2.54 cm. | 2 cups = 6oz.= 1pint (pt) | 0.4732 l. |
| 12 in. – 1 foot (ft.) | 30.48 cm. | 32 oz. = 2 pt. = 1 quart (qt) | 0.946 l. |
| 36 in. = 3 ft. = 1 yard (yd) | 91.44 cm. | 1.05 qts. | 1 l. |
| 39.37 in.=3.28ft.=1.09 yd. | 1 meter (m.) | 4 qts. = 1 gallon (gal.) | 3.7853 l. |
| 0.625 miles | 1 kilometer (km.) | To change liters to gallons, multiply by 0.264 or ¼. | |
| 5,280 ft. = 1 mile | 1.61.km. | ||
| 100 miles | 161 km. |
| Area | |
| U.S. Measures | Metric |
| 4.840 square yards = 1 acre | 0.405 hectares |
| 2,471 acres | 1 hectare |
| 640 acres – 1 square mile | 15.62 square km. |