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This list is based on Basic Units and Derived Units.
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Standard Multiples of Ten were used where appropriate.
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To Convert
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To
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Multiply By
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acres
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ft2
|
43560
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|
acres
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m2
|
4046.9
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acres
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rods2
|
160
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acres
|
hectares
|
0.4047
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acre feet
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barrels
|
7758
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acre feet
|
m3
|
1233.5
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angstrom, å
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cm
|
8-Oct
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angstrom, å
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nm
|
0.1
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astronomical unit, AU
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cm
|
1.50E+13
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astronomical unit
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Tm
|
0.1496
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atmospheres (atm)
|
feet of water
|
33.94
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atmospheres
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in of Hg
|
29.92
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atmospheres
|
mm of Hg
|
760
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atmospheres
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psi
|
14.7
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bar
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atm
|
0.98692
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bar
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dyne cm-2
|
106
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bar
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psi (lb in-2)
|
14.5038
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bar
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mm Hg
|
750.06
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bar
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MPa
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1-Oct
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barrel (bbl)
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ft3
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5.6146
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barrel
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m3
|
0.15898
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barrel
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gal (US)
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42
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barrel
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liter
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158.9
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BTU
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Canadian BTU
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1.000418022
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BTU
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ISO BTU
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1.000527124
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BTU
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cal
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251.996
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BTU
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erg
|
1.055055853 * 1010
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BTU
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joule
|
1054.35
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calorie (gm) (cal)
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joule
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4.184
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centimeter (cm)
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inch
|
0.3937
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cm
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m
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2-Oct
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darcy
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m2
|
9.87E-13
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dyne
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g cm s-2
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1
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dyne
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Newton
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5-Oct
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erg
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cal
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2.39E-08
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erg
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dyne cm
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1
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erg
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joule
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7-Oct
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fathom (fath)
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ft
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6
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feet (ft)
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in
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12
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feet
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m
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0.3048
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furlong
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yd
|
220
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gallon (US) (gal)
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in3
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231
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gallon
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liter
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3.78541
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gallon (Imp.) (gal)
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in3
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277.419
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gallon
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liter
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4.54608
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gamma
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gauss
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5-Oct
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gamma
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tesla
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9-Oct
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gauss
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tesla
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4-Oct
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gram (g)
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pound
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0.0022046
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gram
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kg
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3-Oct
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hectare
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acre
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2.47105
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hectare
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cm2
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108
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horsepower
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W
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745.7
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inch (in)
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cm
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2.54
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inch (in)
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mm
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25.4
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joule (J)
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erg
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107
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joule
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cal
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0.239006
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kilogram (kg)
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g
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103
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kilogram
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pound
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2.20462
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kilometer (km)
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m
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103
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kilometer
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ft
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3280.84
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kilometer
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mile
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0.621371
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kilometer hr-1 (kph)
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mile hr-1 (mph)
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0.621371
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kilowatt
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hp
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1.34102
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knot
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mph
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1.150779
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liter
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cm3
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103
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liter
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gal (US)
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0.26417
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liter
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in3
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61.0237
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meter
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angstrom
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1 x 1010
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meter
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ft
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3.28084
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micron
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cm
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4-Oct
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mile
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ft
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5280
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mile
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km
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1.60934
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mm Hg
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dyne cm-2
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1333.22
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Newton
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dyne
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105
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Newton
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pound (lbf)
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0.224809
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Newton-meter (torque)
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foot-pound-force
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0.737562
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ounce
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lb
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0.0625
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Pascal
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atmospheres
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9.86923 * 10-6
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Pascal
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psi
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1.45 * 10-4
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Pascal
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torr
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7.501 * 10-3
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pint
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gallon
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0.125
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poise
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g cm-1 s-1
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1
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poise
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kg m-1 s-1
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0.1
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pound (lbm)
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kg
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0.453592
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pound (lbf)
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newton
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4.4475
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rod
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feet
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16.5
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quart
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gallon
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0.25
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stoke
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cm2 s-1
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1
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slug
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kg
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14.594
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tesla
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gauss
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104
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Torr
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Millibar
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1.333224
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Torr
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Millimeter of Hg
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1
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ton (long)
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lb
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2240
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ton (Metric)
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lb
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2205
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ton (Metric)
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kg
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1000
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ton (short or net)
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lb
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2000
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ton (short or net)
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kg
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907.185
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ton (short or net)
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ton (Metric)
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0.907
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watt
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J s-1
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1
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yard
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in
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36
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yard
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m
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0.9144
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year (cal)
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days
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365.2421988
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year (cal)
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s
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3.15576 x 107
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Basic Units
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Length
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meter
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m
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Time
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second
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s
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Mass
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kilogram
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kg
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Temperature
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Kelvin
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K
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Electrical Current
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ampere
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A
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Derived Units
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Force
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Newton
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N
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kg m s-2
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Energy
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joule
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J
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kg m2 s-2
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Power
|
watt
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W
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kg m2 s-3
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Frequency
|
hertz
|
Hz
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s-1
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Charge
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coulomb
|
C
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A s
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Capacitance
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farad
|
F
|
C2 s2 kg-1 m-2
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Magnetic Induction
|
tesla
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T
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kg A-1 s-2
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Multiples of Ten
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38637
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pico
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p
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38634
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nano
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n
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38631
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micro
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µ
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38628
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milli
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m
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103
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kilo
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k
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106
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mega
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M
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109
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giga
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G
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1012
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tera
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T
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While these multipliers are most often used with metric basic or derived units, the multipliers are sometimes used with
English units, creating confusing combinations.
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Examples are kip which stands for
kilo pounds (1000 pounds) and ksi which is a combination of k and psi resulting in thousands of psi.
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