Convert Nm to ft-lbs (1 N·m ≈ 0.7376 ft-lb) or ft-lbs to Nm, with inch-pound and kgf·cm results and a table of common torque values.
- Convert N·m to ft-lbs
- Convert ft-lbs to N·m
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N·m to ft-lbs Formula
Here ft-lbs means foot pound-force (ft·lbf). The exact relationship is 1 ft·lbf = 1.3558179483314004 N·m. The following reciprocal factor, 0.73756, is rounded; the calculator converts with the SI-derived factor before rounding its display.
- Where ft-lbs is foot-pounds
- Nm (N·m) is newton meters
To calculate ft-lbs from N·m, multiply the total newton meters (Nm) by 0.73756. To calculate N·m from ft-lbs, divide the total foot-pounds (ft-lbs) by 0.73756.
| Newton Meters (Nm) | Foot-Pounds (ft-lbs) |
|---|---|
| 1 | 0.738 |
| 2 | 1.475 |
| 5 | 3.688 |
| 10 | 7.376 |
| 15 | 11.063 |
| 20 | 14.751 |
| 25 | 18.439 |
| 30 | 22.127 |
| 40 | 29.502 |
| 50 | 36.878 |
| 60 | 44.254 |
| 80 | 59.005 |
| 100 | 73.756 |
| 120 | 88.507 |
| 150 | 110.634 |
| 200 | 147.512 |
| 250 | 184.391 |
| 300 | 221.269 |
| 400 | 295.025 |
| 500 | 368.781 |
| Conversion factors: 1 Nm ≈ 0.7375621 ft-lbs; 1 ft-lb ≈ 1.35582 Nm. | |
Common Conversion Values
The following list outlines some of the most common conversions between N·m and ft-lbs.
- 1 Nm = 0.73756 ft-lbs
- 2 Nm = 1.47512 ft-lbs
- 3 Nm = 2.21269 ft-lbs
- 4 Nm = 2.95025 ft-lbs
- 5 Nm = 3.68781 ft-lbs
- 10 Nm = 7.37562 ft-lbs
- 50 Nm = 36.87811 ft-lbs
- 50 ft-lbs = 67.79090 Nm
Definition
N·m and ft·lbf are torque units, representing force times the perpendicular lever arm. For torque, foot-pounds means pound-force times feet, not pound mass. Approximately, torque in ft·lbf = torque in N·m × 0.737562149277; exactly, torque in N·m = torque in ft·lbf × 1.3558179483314004. Torque is expressed in N·m rather than joules, even though torque and energy share SI dimensions. A signed torque component retains its direction relative to the chosen axis.
Example Problem
How to convert N·m to ft-lbs?
- First, determine the value of the torque in N·m.
N·m (sometimes written N-m) means newtons times meters. In order to find a torque value, multiply the force in newtons by the length in meters (using the perpendicular lever arm). For this example, we will say our torque measurement is 50 N·m.
- Next, use the formula above to convert the units into ft-lbs.
Using the formula, we find the total foot-pounds of torque to be: 50 × 0.73756 = 36.878 ft-lbs.
FAQ
What is a newton meter? A newton meter is a unit of measure used to describe torque. Torque is a measurement equal to the applied force times the perpendicular distance (lever arm) from the axis of rotation.
Why would you need to convert torque units? As with most engineering problems, the units used by different companies and countries vary. As a result, it’s important to convert any unit, including torque units, into the proper unit for the specific application. If you do not convert the N-m into ft-lbs for problems with units of feet and pounds, the end result will be a miscalculation and potential failure of the application.
