POWER
English HP X 0.7457 = KW
KW X 1.341 = English HP
Metric HP (PS) X 0.7355 = KW
KW X 1.3596 = Metric HP (PS)
Torque
http://www.torqueleader.co.uk/conversion.htm
kg/m X 7.23 = ft/lb
ft/lb X 0.13831 = kg/m
kg/m X 9.807 = Nm
Nm X 0.10196 = kg/m
Power to weight!
kg/hp X 474.28 = hp/ton
Speed
KM/h X 0.62137 = MPH
MPH X 1.6093 = KM/h
Spring rates
kg/mm X 55 = pounds/inch
pounds/in / 55 = kg/mm