Torque Units & Conversion Factors
Torque Units
Torque is the application of a Force acting at a radial Distance and tending to cause rotation.
The International Standards Organization (ISO) recommend the use of the Newton metre (N.m) to denote the 'base' torque unit.
The following Note and Table are taken from International Standards ISO 1000 - 1981 (BS 5555:1981) confirmed December 1987.
The Newton metre should be written as N.m with prefixes to denote multiples of the base unit. for example MN.m (mega Newton metre). Divisions of the base unit are also denoted by prefixes example cN.m (centi Newton metre). See table for full list of prefixes.
An interesting note: the use of capitals to denote an ISO unit is reserved for those named after their Inventor or Founder, for example, capital N is used to denote Isaac Newton.
Factor Prefix Symbol
1018 exa E
1015 peta P
1012 tera T
109 giga G
106 mega M
103 kilo k
102 hecto h
10 deca da
10-1 deci d
10-2 centi c
10-3 milli m
10-6 micro ?/font>
10-9 nano n
10-12 pico p
10-15 femto f
10-18 atto a
Torque Conversion Factors
Units to be converted International System - S.I. Imperial Metric
mN.m cN.m N.m ozf.in lbf.in lbf.ft gf.cm kgf.cm kgf.m
1 mN.m 0.1 0.001 0.142 0.009 0.0007 10.2 0.01 0.0001
1 cN.m 10 0.01 1.416 0.088 0.007 102 0.102 0.001
1 N.m 1000 100 141.6 8.851 0.738 10197 10.2 0.102
1 ozf.in 7.062 0.706 0.007 0.0625 0.005 72 0.072 0.0007
1 lbf.in 113 11.3 0.113 16 0.083 1152.1 1.152 0.0115
1 lbf.ft 1356 135.6 1.356 192 12 13.826 13.83 0.138
1 gf.cm 0.098 0.01 0.0001 0.014 0.0009 0.00007 0.001 0.00001
1 kgf.cm 98.07 9.807 0.098 13.89 0.868 0.072 1000 0.01
1 kgf.m 9807 980.7 9.807 1389 86.8 7.233 100000 100
:(