Nm to ft-lbs Converter

Created by Bogna Szyk
Reviewed by Dominik Czernia, PhD and Jack Bowater
Last updated: Oct 10, 2022

This Nm to ft-lbs converter is a simple tool that converts between four different units of torque. We will teach how to convert newton-meters to foot pounds and provide you with handy conversion tables, where you can look up any value you need. If you need a refresher on the notion of torque, you may want to visit our torque calculator.

Read on to learn why we need to use these units in the first place, how to convert between them, and why the kg-cm unit of torque doesn't make much sense!

🙋 If you ever need to jump between different force units, go straight to Omni's force converter.

What do Nm and ft-lbs measure?

Newton-meters (Nm for short) and foot-pounds (ft-lbs) are units of torque, also called the moment of force or the rotational force. Torque measures the tendency of an object to rotate if you apply some force to it.

Imagine an object, such as a lever, that has one fixed point. We will call that stationary point the pivot point. If you start pushing or pulling the lever in a straight line, the object will begin to rotate around that pivot point. The further from the pivot point you apply the force, the bigger the rotation.

The product of the force you apply and the distance from the pivot point is called torque. If you're a fan of the SI unit system, you will probably measure it in newton-meters. If, however, you use the FPS (foot-pound-second) system, you might be more familiar with the unit of foot-pounds.

💡 Remember that foot pounds and pounds-force are not the same unit, although their symbols are quite similar. You can express torque in foot pounds (ft-lbs), but not in pounds-force (lbf) - that is a measure of force.

How to convert newton-meters to foot-pounds?

The conversion from Nm to ft-lbs is very simple. You can, of course, use our torque conversion calculator, but it's straightforward to calculate it by hand, too! All you need to remember is that 1 Nm is equal to 0.7376 ft-lbs.

The conversion table below might come in handy, should you need to convert the most fundamental values of torque. If your value doesn't appear in the table, you might want to give our Nm to ft-lbs conversion calculator a try!

Newton-meters

Foot-pounds

1 Nm

0.738 ft-lbs

2 Nm

1.475 ft-lbs

5 Nm

3.688 ft-lbs

10 Nm

7.376 ft-lbs

20 Nm

14.751 ft-lbs

25 Nm

18.439 ft-lbs

30 Nm

22.127 ft-lbs

35 Nm

25.815 ft-lbs

40 Nm

29.502 ft-lbs

50 Nm

36.878 ft-lbs

100 Nm

73.756 ft-lbs

How to convert ft-lbs to Nm?

If you're trying the opposite torque units conversion, don't worry: it's equally simple! This time, all you need to know is that 1 ft-lb is equivalent to 1.3558 Nm. This means that to convert from foot-pounds to newton-meters, you need to multiply the value you have by the factor of 1.3558.

For your convenience, we have prepared a table with the simplest conversions listed out. If your value doesn't appear in this table, go ahead and input it into the second field of our Nm to ft-lbs converter!

Foot-pounds

Newton-meters

1 ft-lbs

1.356 Nm

2 ft-lbs

2.712 Nm

5 ft-lbs

6.779 Nm

10 ft-lbs

13.558 Nm

20 ft-lbs

27.116 Nm

25 ft-lbs

33.895 Nm

30 ft-lbs

40.675 Nm

35 ft-lbs

47.454 Nm

40 ft-lbs

54.233 Nm

50 ft-lbs

67.791 Nm

100 ft-lbs

135.582 Nm

Torque conversion calculator: example of use

Let's imagine you're working with gears. You're setting up a gear train consisting of three different wheels and you want the output torque to be equal to 12 ft-lbs. Unfortunately, the dynamometer you have displays the measured value in newton-meters only. What should the reading of the dynamometer be?

  1. Check which unit you're working with. You know the value is 12 ft-lbs.

  2. You also know that one ft-lb is equivalent to 1.3558 Nm.

  3. All you have to do is multiply these two values:

    12 * 1.3558 = 16.27 Nm

  4. The dynamometer needs to display a value of 16.27 Nm.

You can also use our Nm to ft-lbs converter to save some time!

Other units of torque - kg-cm to Nm and J/rad to Nm

Even though the most popular units displayed on a torque wrench are Nm and ft-lbs, there are also other units you might find quite handy. Our calculator will automatically convert any value you input into two additional units: kg-cm and J/rad.

  • kg-cm are units of torque that, interestingly, we usually write down with improper notation. You probably noticed that when you try to convert kg-cm to any other SI units, you will get a different unit than that for newtons multiplied by meters! To make this notation correct, you should add a letter F, writing down kgF-cm. In this situation, kgF means kilograms of force, which are simply kilograms multiplied by the gravitational acceleration, g.

    If you want to convert kg-cm to Nm, all you need to do is multiply the first value by 0.09807 - one-hundredth of the gravitational acceleration of Earth:

    1 kg-cm = 0.09807 Nm = 0.07233 ft-lbs

  • J/rad are also alternative units of torque, commonly used when you need the value of torque in calculations of work or power. These units are equivalent to Nm:

    1 J/rad = 1 Nm = 0.738 ft-lbs

FAQ

How do I convert inch-lbs to foot-lbs?

Divide a value in inch-pounds by 12 to get the value in foot-pounds. The ratio between in-lbs and ft-lbs is analogous to that between inches and feet.

What is 10 Nm in inch-pounds?

10 Nm equals 88.51 in-lbs. To get any torque value in inch-pounds, you need to multiply the number in newton-meters by 8.851.

How do I convert Nm to ft-lbs torque?

Multiply the value in newton-meters by 0.7376 to get the torque in foot-pounds. Alternatively, you can divide by 1.356 to obtain the same result.

How do I convert kg-m to Nm?

One kilogram (of force) meter equals 9.807 newton-meters. This is because one kgF (kilogram of force) is the gravitational force acting on a 1 kg object. This conversion factor equals the absolute value of gravitational acceleration. The kg-m unit is actually an abbreviation of the correct kgF-m one.

Bogna Szyk
N·m
lbf·ft
Other torque units
kgf·cm
J/rad
Check out 174 similar conversion calculators
AcreageAcres to hectares converterAcres to square feet converter… 171 more
People also viewed…

Angle conversion

This angle conversion calculator converts between ten different angle measurement units. It explains how to convert degrees to radians, and gives you the definition of an angle, radian, and more.

Schwarzschild radius

Calculate the gravitational acceleration at the event horizon of a black hole of a given mass using the Schwarzschild radius calculator.

Test grade

With this test grade calculator you'll easily find out the test percentage score and grade.

lbs to g converter

Use our **lbs to g converter** to quickly convert weight (mass) in pounds (lbs) to gram (g).
Copyright by Omni Calculator sp. z o.o.
Privacy policy & cookies
main background