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Torque Converter

This torque converter changes newton meters to pound-feet, lb-in to N·m, and kgf·m to either. Use it to read a torque wrench, a bolt spec, or an engine's torque figure in the unit you know.

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How to use the Torque Converter

  1. Type the Value you want to convert.
  2. Pick the unit it is in under From, and the unit you want under To. The swap button flips them.
  3. The answer updates as you type. The table below it shows the same value in every other unit, each with its own copy button.

How it works

1 lbf·ft = 0.3048 m × 4.4482216 N = 1.3558179 N·m
1 lbf·in = 0.1129848 N·m (1/12 lbf·ft)
1 kgf·m = 9.80665 N·m
result = value × from-unit (N·m) ÷ to-unit (N·m)

Examples

  • 100 N·m = 73.756215 lbf·ft.
  • 80 lbf·ft = 108.465436 N·m (a typical wheel nut).
  • 10 N·m = 88.507458 lbf·in.
  • 1 kgf·m = 7.233014 lbf·ft.

Newton meter to pound-foot conversion table

Newton meter (N·m)Pound-foot (lbf·ft)
5 N·m3.687811 lbf·ft
10 N·m7.375621 lbf·ft
20 N·m14.751243 lbf·ft
25 N·m18.439054 lbf·ft
50 N·m36.878107 lbf·ft
80 N·m59.004972 lbf·ft
100 N·m73.756215 lbf·ft
120 N·m88.507458 lbf·ft
150 N·m110.634322 lbf·ft
200 N·m147.51243 lbf·ft

Pound-foot to newton meter conversion table

Pound-foot (lbf·ft)Newton meter (N·m)
5 lbf·ft6.77909 N·m
10 lbf·ft13.558179 N·m
20 lbf·ft27.116359 N·m
50 lbf·ft67.790897 N·m
70 lbf·ft94.907256 N·m
80 lbf·ft108.465436 N·m
100 lbf·ft135.581795 N·m
150 lbf·ft203.372692 N·m
200 lbf·ft271.16359 N·m
300 lbf·ft406.745384 N·m

Torque is not energy

A newton meter of torque and a joule of energy have the same base units, but they measure different things. Torque is a twisting force at a distance; energy is work done over a distance in the direction of the force. That is why this converter keeps torque separate from the energy converter, and why engineers write torque as N·m rather than J.

Limitations

  • Values are converted as given; the sign (direction of rotation) is kept.

Read the guide

Convert engine torque and horsepower

Turn N·m into lb-ft for a torque wrench, compare PS, hp, and kW on engine specs, and see why torque and energy are kept apart.

Frequently asked questions

How do I convert N·m to lb-ft?

Multiply by 0.73756. For example, 100 N·m is about 73.8 lb-ft.

How do I convert lb-ft to N·m?

Multiply by 1.35582. For example, 80 lb-ft is about 108.5 N·m.

Are lb-ft and ft-lb the same?

For torque, people use both names for the same unit. Engineers often prefer lb-ft for torque and ft-lb for work or energy.

Often used together with Torque Converter.