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Select the measurement category or unit that you wish to convert.  Then enter a number in one of the fields for that measurement and it will be converted into all the other fields for you.  Results are to 3 decimal places.
Measurement Category
Area
Density
Energy
Flow
Force
Length
Mass
Power
Pressure
Specific Energy
Speed
Strain
Temperature
Torque
Vacuum
Volume
Volume Flow Capacity
Weight
Work
 
Units - Symbol
bar
Btu
°C
cc
cfm
cm
cm²
cm³
daNm
dm³
dm³/min
°F
ft
ft²
ft³
ft³/min
ft/s
ft/m
ft.lbf (Energy)
ft.lbf (Torque)
ft.lbf/s
g
g/cm³
gal (Imp)
gal (US)
gal (US)/min
hp (US)
in
in²
in³
in.lbf
In Hg
J
J/l
J/s
°K
kg
kg/cm²
kg/m³
kJ/m³
km
km/h
kp
kp/cm²
kpm (Energy)
kpm (Torque)
kpm/s
kts
kW
kWh
kWh/m³
l
lb
lb/ft³
lb/in³
lbf
lbf/in²
lg cwt
lg ton
lg ton / yd³
ltr
l/m
l/s
m


m³/h
m³/min
mbar
min/ft³
mm
mm²
mm Hg
MN/m²
MPa
mph
m/s
m/min
N
Nm (Energy)
Nm (Torque)
Nm/s
N/m²
Pa
psi (Pressure)
psi (Vacuum)
°R
sh cwt
sh ton
sh ton / yd³
tonne
tonne / m³
Torr
W
Ws
yd
yd²
yd³
yd³/h
 
Units - Description
acres
bar
british thermal unit
celsius
centimetres
cubic centimetres
cubic decimetres
cubic decimetres per minute
cubic feet
cubic feet per minute
cubic inches
cubic metres
cubic metres per hour
cubic metres per minute
cubic yards
cubic yards per hour
decanewton metres
fahrenheit
feet
feet per minute
feet per second
foot pound force
gallons (Imp)
gallons (US)
gallons (US) per minute
grams
grams per cubic centimetre
hectares
horse power (US)
inches
inches of mercury
joules
joules per litre
joules per second
kelvin
kilograms
kilograms per cubic metre
kilograms per square centimetre
kilojoules per cubic metre
kilometres
kilometres per hour
kilopounds
kilopound metres (Energy)
kilopound metres (Torque)
kilopound metres per second
kilowatts
kilowatt hours
kilowatt hours per cubic metre
knots
litres
litres per minute
litres per second
long hundredweight (UK)
long ton (UK)
long ton (UK) per cubic yard
mega pascals
mega netwons per square metre
metres
metres per minute
metres per second
miles
miles per hour
millibar
millimetres
millimetres of mercury
newtons
newton metres (Energy)
newton metres (Torque)
newton metres per second
newtons per square metre
pascals
percentage vacuum
pounds
pounds force
pound force feet
pounds force feet per second
pound force inches
pounds per cubic foot
pounds per cubic inch
pounds per square inch
rankine
short hundredweight (US)
short ton (US)
short ton (US) per cubic yard
square centimetres
square feet
square inches
square metres
square millimetres
square yards
tonne (metric)
tonne (metric) per cubic metre
torr
watts
watt seconds
yards
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Length
mm
cm
metres
km
inches
feet
yards
miles
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Area
mm2
cm2
m2
in2
ft2
yd2
acres
hectares
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Mass / Weight
g
kg
ounce
lb (pound)
lg cwt (long cwt UK)
sh cwt (short cwt US)
tonne (metric ton)
lg ton (long ton UK)
sh ton (short ton US)
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Volume
m3
cc
ltr; dm3
in3
ft3
yd3 (yd3)
gallon (US)
gallon (Imperial)
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Volume Flow Capacity
l/s
l/m; dm3/min
m3/min
m3/h
ft3/min (cfm)
yd3/h
gal (US)/min
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Speed
m/s
m/min
ft/s
ft/m
km/h
mph
knots
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Torque
Nm
daNm
kpm
in.lbf
ft.lbf
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Pressure
Pa; N/m2
MPa; MN/m2
bar
kg/cm2; kp/cm2
lbf/in2; psi
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Force
N (newton)
kp (kilopound)
lbf (pound-force)
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Vacuum (Gauge)
mbar
mm Hg
In Hg
Torr
psi
% vacuum
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Energy
J; Nm; Ws
kWh
kpm
ft.lbf (foot pound force)
Btu (Brit. thermal unit)
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Specific Energy
J/l; kJ/m3
kWh/m3
hp (US); min/ft3
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Power
W; Nm/s; J/s
kW
kpm/s
hp (US)
ft.lbf/s
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Temperature
Kelvin
Celsius
Rankine
Fahrenheit
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Density
kg/m3
g/cm3
lb/in3
lb/ft3
tonne/m3
sh ton/yd3
lg ton/yd3
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