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Length
SI unit: Meter (m)



1 kilometer      = 1000. meters

		 = 0.62137 mile

1 meter		 = 100. centimeters

1 centimeter     = 10. millimeters

1 nanometer	 = 1.00 x 10-9 meters

1 picometer      = 1.00 x 10-12 meters

1 inch           = 2.54 centimeters (exact)

1 Ångstrom       = 1.00 x 10-10 meters




Volume
SI unit: Cubic meter (m3)



1 liter (L) = 1.00 x 10-3m3

            = 1000. cm3

            = 1.056710 quarts

1 gallon    = 4.00 quarts



Pressure
Si unit: Pascal (Pa)



1 pascal     = 1 N/m2

             = 1 kg/m * s2

1 atmosphere = 101.325 kilopascals

             = 760. mmHg

	     = 760 torr

	     = 14.70 lb/in2

	     = 1.01325 bar

1 bar        = 105 Pa (exact)



Energy
SI unit: Joule (J)



1 joule    = 1 kg * m2/s2

           = 0.23901 calorie

           = 1C x 1V

1 calorie  = 4.184 joules



Mass
SI unit: Kilogram (kg)



1 kilogram = 1000. grams

1 gram     = 1000. milligrams

1 pound    = 453.59237 grams

           = 16 ounces

1 ton      = 2000. pounds


Temperature
Si unit: Kelvin (K)



K = 273.15 °C

K = °C + 273.15 °C

? °C = (5 °C/9 °F)(°F - 32 °F)

? °F = (9 °F/5 °C)°C + 32 °F