Convert torque between pound-feet, foot-pounds, Newton-meters, inch-pounds, kilogram-force meters, ounce-inches, and other common torque units. Use this converter for automotive repairs, wheel lug nuts, engine specs, bolts, tools, and mechanical work.
lb-ft to Nm:
Nm = lb-ft × 1.355817948
Nm to lb-ft:
lb-ft = Nm × 0.737562149
lb-ft to in-lb:
in-lb = lb-ft × 12
Torque to horsepower:
HP = torque lb-ft × RPM ÷ 5252
Torque conversions are useful for automotive repair, engine torque specs, wheel lug nuts, suspension bolts, spark plugs, motorcycles, bicycles, machinery, torque wrenches, shop manuals, and comparing metric and imperial fastener specs.
Use this converter when a service manual, tool, or spec sheet lists torque in a different unit than your torque wrench.
Your result shows the entered torque value converted into the selected unit. The converter also displays reference values in lb-ft, Nm, in-lb, kgf-m, and a power estimate when RPM is entered.
Torque specifications matter for safety. Too little torque can allow parts to loosen, while too much torque can stretch bolts, damage threads, warp parts, or cause fastener failure.
Multiply lb-ft by 1.355817948. For example, 100 lb-ft is about 135.58 Nm.
Multiply Nm by 0.737562149. For example, 100 Nm is about 73.76 lb-ft.
For common torque wrench use, lb-ft and ft-lb are often treated as the same torque unit.
There are 12 inch-pounds in 1 foot-pound.
Yes. If torque is in lb-ft and RPM is known, horsepower can be estimated as torque × RPM ÷ 5252.