Metric Basics
The three basic metric units are the meter (length), the gram (weight), and the liter (volume). The key to metric prefixes are:
- 1000 = kilo
- 100 = hecto
- 10 = deca
- 0.1 = deci
- 0.01 = centi
- 0.001 milli
COMMON MEASUREMENTS
| Length | |||||||
| 1 kilometer | = 0.62137 mi | ||||||
| 1 meter | = 3.2808 ft | ||||||
| 1 centimeter | = 0.3937 in | ||||||
| 1 mile | = 1.6093 km | ||||||
| 1 foot | = 0.3048 m | ||||||
| 1 inch | = 2.54 cm | ||||||
| Weight | |||||||
| 1 kilogram | = 2.2046 lbs | ||||||
| 1 gram | = 0.0353 oz | ||||||
| 1 short ton | = 907.1847 kilos | ||||||
| 1 pound | = 0.4536 kilos | ||||||
| 1 ounce | = 28.3495 g | ||||||
| Volume | |||||||
| 1 hectoliter | = 100 l | = 0.1 m³ | = 26.4172 gal | ||||
| 1 liter | = 100 cl | = 1 dm³ | = 1.0567 qt | ||||
| 1 gallon (U.S.) | = 3.7853 l | ||||||
| 1 cubic inch | = 16.3871 cm³ | ||||||
| Area | |||||||
| 1 hectare | = 10,000 m² | = 2.471 acres | |||||
| 1 square meter | = 10.7639 ft² | = 1550.003 in² | |||||
| 1 square mile | = 640 acres | = 258.9988 ha² | |||||
| 1 square foot | = 144 in² | = 929.0304 cm² | |||||