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
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 |
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 |
1 hectoliter | = 100 l | = 0.1 mยณ | = 26.4172 gal |
1 liter | = 100 cl | = 1 dmยณ | = 1.0567 qt |
1 gallon (U.S.) | = 3.7853 l |
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1 cubic inch | = 16.3871 cmยณ |
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1 square kilometer | = 1 million mยฒ | = 0.3861 miยฒ |
1 hectare | = 10,000 mยฒ | = 2.471 acres |
1 square meter | = 10.7639 ftยฒ | = 1550.003 inยฒ |
1 square mile | = 640 acres | = 258.9988 haยฒ |
1 square foot | = 144 inยฒ | = 929.0304 cmยฒ |
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 | cmยฒ | square centimeters | 0.16 | square inches | inยฒ |
mยฒ | square meters | 1.2 | square yards | ydยฒ | |
kmยฒ | square kilometers | 0.4 | square miles | miยฒ | |
haยฒ | hectares (10,000 m2) | 2.5 | acres | ||
inยฒ | square inches | 6.5 | square centimeters | cmยฒ | |
ftยฒ | square feet | 0.09 | square meters | mยฒ | |
ydยฒ | square yards | 0.8 | square meters | mยฒ | |
miยฒ | square miles | 2.6 | square kilomters | kmยฒ | |
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 | |
mยณ | cubic meters | 35.314 | cubic feet | ftยณ | |
mยณ | cubic meters | 1.3 | cubic yards | ydยณ | |
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 | |
ftยณ | cubic feet | 0.03 | cubic meters | mยณ | |
ydยณ | cubic yards | 0.76 | cubic meters | mยณ |