Page 710 - Environment: The Science Behind the Stories

Metric System c
APPENDIX

Metric to English English to Metric
Measurement Unit and Abbreviation Metric Equivalent Conversion Factor Conversion Factor
Length 1 kilometer (km) 5 1,000 (10 ) meters 1 km 5 0.62 mile 1 mile 5 1.61 km
3
1 meter (m) 5 100 (10 ) centimeters 1 m 5 1.09 yards 1 yard 5 0.914 m
2
5 1,000 millimeters 1 m 5 3.28 feet 1 foot 5 0.305 m
1 m 5 39.37 inches
1 centimeter (cm) 5 0.01 (10 ) meter 1 cm 5 0.394 inch 1 foot 5 30.5 cm
−2
1 inch 5 2.54 cm
1 millimeter (mm) 5 0.001 (10 ) meter 1 mm 5 0.039 inch
23
Area 1 square meter (m ) 5 10,000 square 1 m 5 1.1960 square yards 1 square yard 5 0.8361 m 2
2
2
2
centimeters 1 m 5 10.764 square feet 1 square foot 5 0.0929 m 2
2
1 cm 5 0.155 square inch 1 square inch 5 6.4516 cm 2
1 square centimeter (cm ) 5 100 square millimeters
2
Mass 1 metric ton (t) 5 1,000 kilograms 1 t 5 1.103 tons 1 ton 5 0.907 t
1 kilogram (kg) 5 1,000 grams 1 kg 5 2.205 pounds 1 pound 5 0.4536 kg
1 gram (g) 5 1,000 milligrams 1 g 5 0.0353 ounce 1 ounce 5 28.35 g
1 milligram (mg) 5 0.001 gram
Volume (solids) 1 cubic meter (m ) 5 1,000,000 cubic 1 m 5 1.3080 cubic yards 1 cubic yard 5 0.7646 m 3
3
3
centimeters 1 m 5 35.315 cubic feet 1 cubic foot 5 0.0283 m 3
3
1 cubic centimeter 5 0.000001 cubic meter 1 cm 5 0.0610 cubic inch 1 cubic inch 5 16.387 cm 3
3
(cm or cc) 5 1 milliliter
3
1 cubic millimeter (mm ) 5 0.000000001 cubic meter
3
Volume (liquids and 1 kiloliter (kl or kL) 5 1,000 liters 1 kL 5 264.17 gallons 1 gallon 5 3.785 L
gases) 1 liter (l or L) 5 1,000 milliliters 1 L 5 0.264 gallons 1 quart 5 0.946 L
1 L 5 1.057 quarts
1 milliliter (ml or mL) 5 0.001 liter 1 ml 5 0.034 fluid ounce 1 quart 5 946 ml
5 1 cubic centimeter 1 ml 5 approximately 1 pint 5 473 ml
1 – teaspoon 1 fluid ounce 5 29.57 ml
4
1 teaspoon 5 approx. 5 ml
Time 1 millisecond (ms) 5 0.001 second
9
5
Temperature Degrees Celsius (°C) °C 5 (°F 2 32) °F 5 °C + 32
– 5
– 9
Energy and Power 1 kilowatt-hour 5 34,113 BTUs 5 860,421 calories
1 watt 5 3.413 BTUs/hr
5 14.34 calories/min
1 calorie 5 the amount of heat necessary to raise the temperature of 1 gram (1 cm ) of water
3
1 degree Celsius
1 horsepower 5 7.457 × 102 watts
1 joule 5 9.481 × 10 BTUs
−4
5 0.239 cal
5 2.778 × 10 kilowatt-hours
−7

Pressure 1 pound per square inch (psi) 5 6894.757 pascals (Pa) Metri c S y S te M
5 0.068045961 atmosphere (atm)
5 51.71493 millimeters of mercury (mm hg 5 Torr)
5 68.94757 millibars (mbar)
1 atmosphere (atm) 5 6.894757 kilopascals (kPa)
5 101.325 kilopascals (kPa) C-1

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