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 square kilometer | = 1 million m² | = 0.3861 mi² |
| 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 |
EASY CONVERSIONS
| Symbol | If You Know | Multiply By | To Find | Symbol |
|---|
| Length | mm | millimeters | 0.03937 | inches | in |
|---|
| cm | centimeters | 0.3937 | inches | in |
| m | meters | 3.3 | feet | ft |
| m | meters | 1.1 | yards | yd |
| km | kilometers | 0.62 | miles | mi |
| in | inches | 2.54 | centimeters | cm |
| ft | feet | 30.48 | centimeters | cm |
| yd | yards | 0.9144 | meters | m |
| Area | cm² | square centimeters | 0.16 | square inches | in² |
|---|
| m² | square meters | 1.2 | square yards | yd² |
| km² | square kilometers | 0.4 | square miles | mi² |
| ha² | hectares (10,000 m2) | 2.5 | acres | |
| in² | square inches | 6.5 | square centimeters | cm² |
| ft² | square feet | 0.09 | square meters | m² |
| yd² | square yards | 0.8 | square meters | m² |
| mi² | square miles | 2.6 | square kilomters | km² |
| Weight | g | grams | 0.035 | ounce | oz |
|---|
| kg | kilograms | 2.2046 | pounds | lb |
| t | tonnes
(1,000 kq) | 1.1 | short tons | |
| oz | ounces | 28.3495 | grams | g |
| lb | pounds | 0.45 | kilograms | kg |
| Volume | ml | milliliters | 0.03 | fluid ounces | fl oz |
|---|
| l | liters | 2.1 | pints | pt |
| l | liters | 1.06 | quarts | qt |
| l | liters | 0.26 | gallons | gal |
| m³ | cubic meters | 35.314 | cubic feet | ft³ |
| m³ | cubic meters | 1.3 | cubic yards | yd³ |
| tsp | teaspoons | 5 | milliliters | ml |
| tbsp | tablespoons | 15 | milliliters | ml |
| fl oz | fluid ounces | 30 | milliliters | ml |
| c | cups | 0.24 | liters | l |
| pt | pints | 0.47 | liters | l |
| qt | quarts | 0.97 | liters | l |
| gal | gallons | 3.8 | liters | l |
| ft³ | cubic feet | 0.03 | cubic meters | m³ |
| yd³ | cubic yards | 0.76 | cubic meters | m³ |
Weight Conversion
Enter a weight in any box and click calculate button to see the conversion to other units.
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