Trail Construction and Maintenance Notebook
Metric Conversions
| To convert from this unit | To this unit | Multiply by |
|---|---|---|
| inch | millimeter | 25.4* |
| inch | centimeter | 2.54* |
| foot | meter | 0.3048* |
| yard | meter | 0.9144* |
| mile | kilometer | 1.6 |
| millimeter | inch | 0.039 |
| centimeter | inch | 0.394 |
| centimeter | foot | 0.0328 |
| meter | foot | 3.28 |
| meter | yard | 1.09 |
| kilometer | mile | 0.62 |
| acre | hectare (square hectometer) | 0.405 |
| square kilometer | square mile | 0.386* |
| hectare (square hectometer) | acre | 2.47 |
| ounce (avoirdupois) | gram | 28.35 |
| pound (avoirdupois) | kilogram | 0.45 |
| ton (2,000 pounds) | kilogram | 907.18 |
| ton (2,000 pounds) | megagram (metric ton) | 0.9 |
| gram | ounce (avoirdupois) | 0.035 |
| kilogram | pound (avoirdupois) | 2.2 |
| megagram | ton (2,000 pounds) | 1.102 |
| ounce (U.S. liquid) | milliliter | 30 |
| cup | milliliter | 247 |
| cup | liter | 0.24 |
| gallon | liter | 3.8 |
| quart | liter | 0.95 |
| pint | liter | 0.47 |
| milliliter | ounce (U.S. liquid) | 0.034 |
| liter | gallon | 0.264 |
| liter | quart | 1.057 |
| degrees Fahrenheit | degrees Celsius | (°F – 32) ÷ 1.8 |
| degrees Celsius | degrees Fahrenheit | (°C x 1.8) + 32 |
| *The conversion factors with asterisks are exact (the others give approximate conversions). | ||
Metric Comparisons
- A millimeter, one-thousandth of a meter, is about the thickness of a dime.
- One inch is just 1⁄64 inch longer than 25 millimeters (1 inch = 25.4 millimeters).
- 150 millimeters is the length of a dollar bill.
- One foot is about 3⁄16 inch longer than 300 millimeters (12 inches = 304.8 millimeters).
- A meter is a little longer than a yard, about a yard plus the width of this notebook.
- A kilometer is about five-eighths of a mile.
1 kilometer
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1 mile
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