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Conversion Guide
 
Area|Electricity & Magnetism|Energy (work & heat) |Frequency|Force|Length|Mass|Power|Pressure|Speed|Volume & Capacity
 
 
Area
 
 
      To Convert
Multiply by
      Convert Now
      square inches into square millimetres
645.16
       in²     = mm²
      square inches into square centimetres
6.4516
       in²     = cm²
      square feets into square centimetres
929.0304
       ft²      = cm²
      square feets into square metres
0.092903
       ft²      =
      square yards into square metres
0.836127
       yd²     =
      square yards into ares (0.1 hectare)
0.0083613
       yd²     = ares
      acres into square metres
4046.8564
       acres =
      acres into hectares
0.4046856
       acres = ha
      square miles into square kilometres
2.589988
       mi ²    = km²

 
Electricity & Magnetism
 
         
      To Convert
Multiply by
      Convert Now
      nanoampere into picoamperes
1000
       nA   = mm²
      microampere into nanoamperes
1000
       µA   = nA
      milliampere into microamperes
1000
       mA  = µA 
      ampere into milliamperes
1000
       A     = mA
      kiloampere into amperes
1000
       kA   = A
      coulomb into millicoulombs
1000
       C     = mC
      millivolt into microvolts
1000
       mV  = µV
      volt into millivolts
1000
       V     = mV
      kilovolt into volts
1000
       kV    = V
      megavolt into kilovolts
1000
       MV   = kV
      milliohm into microhm
1000
       mΩ   = µΩ
      ohm into milliohms
1000
       Ω     =

 
Energy (work & heat)
 
     
      To Convert
Multiply by
      Convert Now
      millijoule into ergs
1000
       mJ   = erg
      joule into millijoules
1000
       J      = mJ
      kilojoule into joules
1000
       kJ    = J
      megajoule into kilojoules
1000
       MJ   = kJ
      kilowatt hour into megajoules
3.6
       kWh = MJ
      gigajoule into megajoules
1000
       GJ    = MJ
      terajoule into gigajoules
1000
       TJ    = GJ

 
Frequency
 
     
      To Convert
Multiply by
      Convert Now
      kilohertz into hertz
1000
       kHz   = Hz
      megahertz into kilohertz
1000
       MHz  = kHz
      gigahertz into megahertz
1000
       GHz  = MHz
      terahertz into gigahertz
1000
       THz   = GHz
      petahertz into terahertz
1000
       PHz   = THz
      exahertz into petahertz
1000
       EHz   = PHz

 
Force
 
     
      To Convert
Multiply by
      Convert Now
      dyne into micronewtons
10
       dyn  = µN
      millinewton into micronewtons
1000
       mN  = µN
      centinewton into millinewtons
10
       cN   = mN
      newton into millinewtons
1000
       N     = mN
      kilonewton into newtons
1000
       kN   = N
      meganewton into kilonewtons
1000
       MN  = kN

 
Length
 
         
      To Convert
Multiply by
      Convert Now
      milli-inches into micrometres
25.4
       mil       = µm
      inches into millimetres
25.4
       in         = mm
      inches into centimetres
2.24
       in         = cm
      inches into metres
0.0254
       in         = m
      feet into millimetres
304.8
       ft          = mm
      feet into centimetres
30.48
       ft          = cm
      feet into metres
0.3048
       ft          = m
      yard into metres
0.9144
       yd         = m
      fathoms into metres
1.8288
       fathom  = m
      chains into metres
20.1168
       ch         = m
      furlongs into metres
201.168
       furlong  = m
      miles, statute into kilometres
1.609344
       mi         = km
      miles, nautical into kilometres
1.852
       dyn       = km

 
Mass
 
         
      To Convert
Multiply by
      Convert Now
      grains into milligrams
64.79891
       gr        = mg
      grains into metric carats
0.323995
       gr        = ct
      grains into grams
0.064799
       gr        = g
      pennyweights into grams
1.555174
       dwt     = g
      ounces into grams
28.349523
       oz       = g
      ounces troy into grams
31.103477
       oz       = g
      ounces into kilograms
0.0283495
       oz       = kg
      pounds into kilograms
0.4535924
       lb        = kg
      stones into kilograms
6.3502932
       st         = kg
      hundredweights into kilograms
50.802345
       cwt      = kg
      tons into kilograms
1016.0469
       tn         = kg
      tons into metric tonnes
1.01605
       tn         = t
      tahils into grams
37.799
       tahil     = g
      kati into kilograms
0.60479
       kati      = kg
      microgram into nanograms
1000
       µg        = ng
      milligram into micrograms
1000
       mg       = µg
      metric carat into milligrams
200
       ct         = mg
      gram into milligrams
1000
       g          = mg
      gram into metric
5
       g          = metric
      metric ounce into grams
25
       oz        = g
      hectogram into grams
100
       hg        = g
      kilogram into grams
1000
       kg        = g
      quintal into kilograms
100
       q          = kg
      megagram into kilograms
100
       Mg       = kg

 
Power
 
         
      To Convert
Multiply by
      Convert Now
      footpounds-force per second into watts
1.35582
       ft-lbf/s   = W
      footpounds-force per second into kilowatts
0.001356
       ft-lbf/s   = kW
      horsepower into watts
745.7
       hp        = W
      horsepower into kilowatts
0.7457
       hp        = kW
      horsepower into metric horsepower
1.01387
       hp        = P
      milliwatt into microwatts
1000
       mW      = µW
      watt into milliwatts
1000
       W         = mW
      kilowatt into watts
1000
       kW       = W
      megawatt into kilowatts
1000
       MW      = kW
      gigawatt into megawatts
1000
       GW      = MW
      terawatt into gigawatts
1000
       TW       = GW

 
Pressure
 
         
      To Convert
Multiply by
      Convert Now
      milliapscal into micropascals
1000
       mPa       = µPa
      microbar into millipascals
100
       µb          = mPa
      pascal into millipascals
1000
       Pa          = mPa
      pascal into microbars
10
       Pa          = µb
      millibar into microbars
1000
       mb         = µb
      millibar into pascals
100
       mb         = Pa
      kilopascal into pascals
1000
       kPa        = Pa
      kilopascal into millibars
10
       kPa        = mb
      pieze into millibars
10
       pz          = mb
      bar into millibars
1000
       b            = mb
      hectopieze into millibars
1000
       hpz        = mb
      megapascal into kilopascals
1000
       MPa       = kPa
      hectobar into bars
100
       hbar       = b
      kilobar into bars
1000
       kb          = b
      gigapascal into magapascals
1000
       GPa       = MPa

 
Speed
 
         
      To Convert
Multiply by
      Convert Now
      kilometers/hour into meters/second
0.277778
       km/h       = m/s
      kilometers/hour into miles/hour
0.6214
       km/h       = mi/h
      knots into meters/second
0.514444
       kn           = m/s

 
Volume & Capacity
 
         
      To Convert
Multiply by
      Convert Now
      cubic inches into cubic centimetres
16.387064
       in3         = cm3
      cubic inches into litres
0.016387
       in3         = L
      cubic feet into cubic metres
0.0283164
       ft3          = m3
      cubic feet into litres
28.316847
       ft3          = L
      cubic yards into cubic metres
0.7645549
       yd3        = m3
      UK pints into litres
0.5682613
       UK pt     = L
      UK quarts into litres
1.1365225
       UK qt     = L
      UK gallons into cubic metres
4.54609
       gal         = m3
      UK gallons into cubic metres
0.0045461
       gal         = m3
      UK fluid ounces into cubic metres
28.413063
       UK fl oz  = m3
      cubis centimetre into cubis millimetres
1000
       cm3        = mm3
      cubis decimetre into cubis millimetres
1000
       dm3        = mm3
      cubis metre into cubis decimetres
1000
       m3          = dm3
      cubis dekametre into cubis metres
1000
       dam3      = m3
      cubis hectometre into cubis dekametres
1000
       hm3        = dam3
      cubis kilometre into cubic hectometres
1000
       m3          = hm3
      millilitre into microlitres
1000
       mL          = µL
      cubis centimetre into microlitres
1000
       cm3         = µL
      centilitre into millilitres
10
       cL            = mL
      decilitre into centilitres
10
       dL            = cL
      litre into millilitres
1000
       L              = mL
      litre into centilitres
100
       L              = cL
      hectolitre into litres
100
       hL            = L
      kilolitre into litres
1000
       kL             = L
      cubis metre into litres
1000
       m3            = L
      kilolitre into hectolitres
10
       kL             = hL

         

 
   
   
   
 
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