Conversion Tables
Enter a number in one of the fields for the measurement you require and it will instantly be converted into all the other fields for you. Results are to 3 decimal places.

Length
mm
cm
metres
km
inches
feet
yards
miles nmiles
 

Area
mm2
cm2
m2
in2
ft2
yd2
acres
hectares
 

Mass
g
kg
ounce
lb (pound)
long cwt UK
short cwt US
metric ton
long ton UK
short ton US
 

Volume
m3
cc
ltr
in3
ft3
yd3
gallon (US)
gallon (Imp)
 

Volume Flow
l/s
l/m
m3/min
m3/h
ft3/min (cfm)
yd3/h
gal (US)/min
 

Speed
m/s
m/min
ft/s
ft/m
km/h
mph Knot
 

Torque
Nm
kpm
in.lbf
ft.lbf
 

Pressure
Pa; N/m2
bar
kp/cm2
lbf/in2; psi
 

Force
N (newton)
kp (kilopound)
lbf (pound-force)
 

Vacuum (Gauge)
mbar
In Hg
Torr
psi
% vacuum
 

Energy
J; Nm; Ws
kWh
kpm
ft.lbf (foot pound force)
Btu (Brit. thermal unit)
 

Specific Energy
J/l; kJ/m3
kWh/m3
hp (US); min/ft3
 

Power
W; Nm/s; J/s
kW
kpm/s
hp (US)
ft.lbf/s
 

Temperature
Kelvin
Celsius
Rankine
Fahrenheit
 

Density
kg/m3
g/cm3
lb/in3
lb/ft3