Length, Area and Volume

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Angstrom 10-1 Nanometers
Angstrom 10-10 Meters
Micron 10-4 Centimeters
Micron 10-3 Millimeters
Micron 3.94 x 10-5 Inches
Inches 2.54 Centimeters
Inches 25.4 Millimeters
Centimeters 0.394 Inches
Millimeters 0.0394 Inches
Millimeters 39.4 Thousandths of inch (mil)
Feet 30.448 Centimeters
Meters 39.37 Inches
Square mm 1.55 x 10-3 Square inches
Square in. 645.16 Square mm
Square cm 0.155 Square in.
Cubic cm 0.016 Cubic in.
Cubic in. 16.387 Cubic cm

Mass, Weight and Density

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Grams 0.03527 Ounces avoirdupois
Grams 2.205 x 10-3 Pounds avoirdupois
Kilograms 2.205 Pounds avoirdupois
Oz. avoir. 28.35 Grams
Oz. troy 31.1 Grams
Grams 0.0321 Ounces troy
lbs. avoir. 453.59 Grams
gm/cm3 0.0361 lbs./in3
lbs./in3 27.7 gms/cm3

Pressure

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Atmospheres 101325 Pascals (Pa)
Atmospheres 14.7 Pounds/Sq. In.
Atmospheres 1.01325 Bar
Oz. troy 31.1 Grams
Grams 0.0321 Ounces troy
lbs. avoir. 453.59 Grams
gm/cm3 0.0361 bs./in3
lbs./in3 27.7 gms/cm3