The World Factbook (1982)/Conversion Factors
Conversion Factors
| To Convert From | To | Multiply By |
| Acres | Hectares | 0.4046856 |
| Acres | Kilometers, square | 0.004046856 |
| Acres | Meters, square | 4046.856 |
| Centimeters | Meters | 0.01 |
| Centimeters, square | Meters, square | 0.0001 |
| Degrees, Fahrenheit | Degrees, Celsius | subtract 32 and multiply by 5/9 |
| Feet | Centimeters | 30.48 |
| Feet | Meters | 0.3048 |
| Feet | Kilometers | 0.0003048 |
| Feet, cubic | Liters | 28.316847 |
| Feet, cubic | Meters, cubic | 0.028316847 |
| Feet, square | Centimeters, square | 929.0304 |
| Feet, square | Meters, square | 0.09290304 |
| Gallons, US liquid | Liters | 3.785412 |
| Gallons, US liquid | Meters, cubic | 0.003785412 |
| Grams | Ounces, troy | 0.032151 |
| Grams | Pounds, troy | 0.002679 |
| Hectares | Kilometers, square | 0.01 |
| Hectares | Meters, square | 0.0001 |
| Inches | Centimeters | 2.54 |
| Inches | Meters | 0.0254 |
| Inches, cubic | Milliliters | 16.387064 |
| Inches, cubic | Liters | 0.016387064 |
| Inches, cubic | Meters, cubic | 0.000016387064 |
| Inches, square | Centimeters, square | 6.4516 |
| Inches, square | Meters, square | 0.00064516 |
| Kilograms | Ounces, troy | 32.15075 |
| Kilograms | Pounds, troy | 2.679229 |
| Kilograms | Tons, metric | 0.001 |
| Kilometers, square | Hectares | 100 |
| Liters | Milliliters | 1000 |
| Liters | Meters, cubic | 0.001 |
| Meters | Millimeters | 1000 |
| Meters | Centimeters | 100 |
| Meters | Kilometers | 0.001 |
| Meters, cubic | Liters | 1000 |
| Meters, cubic | Tons, register | 0.353147 |
| Miles, nautical | Kilometers | 1.852 |
| Miles, statute | Centimeters | 160934.4 |
| Miles, statute | Meters | 1609.344 |
| Miles, statute | Kilometers | 1.609344 |
| Miles, square | Hectares | 258.9998 |
| Miles, square | Kilometers, square | 2.589998 |
| Ounces, avoirdupois | Grams | 28.349523 |
| Ounces, avoirdupois | Kilograms | 0.028349523 |
| Ounces, troy | Pounds, troy | 0.083333 |
| Ounces, troy | Grams | 31.10348 |
| Pints, liquid | Milliliters | 473.176473 |
| Pints, liquid | Liters | 0.473176473 |
| Pounds, avoirdupois | Grams | 453.59237 |
| Pounds, avoirdupois | Kilograms | 0.45359237 |
| Pounds, avoirdupois | Quintals | 0.00453592 |
| Pounds, avoirdupois | Tons, metric | 0.000453592 |
| Pounds, troy | Ounces, troy | 12 |
| Pounds, troy | Grams | 373.241722 |
| Quarts, dry | Liters | 1.101221 |
| Quarts, dry | Dekaliters | 0.1101221 |
| Quarts, liquid | Milliliters | 946.352946 |
| Quarts, liquid | Liters | 0.946352946 |
| Quintals | Tons, metric | 0.1 |
| Tons, long | Kilograms | 0.047 |
| Tons, long | Tons, metric | 0.016047 |
| Tons, metric | Quintals | 10 |
| Ton-miles, long | Ton-kilometers, metric | 1.635169 |
| Ton-miles, short | Ton-kilometers, metric | 1.459972 |
| Tons, register | Meters, cubic | 2.831685 |
| Tons, short | Kilograms | 907.185 |
| Tons, short | Tons, metric | 0.907185 |
| Yards | Centimeters | 91.44 |
| Yards | Meters | 0.9144 |
| Yards, cubic | Liters | 764.5549 |
| Yards, cubic | Meters, cubic | 0.7645549 |
| Yards, square | Meters, square | 0.836127 |