Pound-feet to Newton-meters Converter
1 lbf-ft equals 1.3558179 N-m, and 1 N-m equals 0.73756215 lbf-ft. Enter a value in either box to convert pound-feet to newton-meters and back. Formula: newton-meters = value x unit factor (1 lbf-ft = 1.3558179483314004 N-m, 1 lbf-in = 0.1129848290276167 N-m).
· CalcFlow Editorial
1 lbf-ft = 1.3558179 N-m
Results shown are estimates for informational purposes only. Nothing on CalcFlow is financial, tax, legal, or medical advice. Always consult a qualified professional before making important decisions.
Pound-feet to Newton-meters Conversion Table
| Pound-feet | Newton-meters |
|---|---|
| 1 lbf-ft | 1.3558179 N-m |
| 5 lbf-ft | 6.7790897 N-m |
| 10 lbf-ft | 13.558179 N-m |
| 25 lbf-ft | 33.895449 N-m |
| 50 lbf-ft | 67.790897 N-m |
| 100 lbf-ft | 135.58179 N-m |
| 200 lbf-ft | 271.16359 N-m |
| 300 lbf-ft | 406.74538 N-m |
| 500 lbf-ft | 677.90897 N-m |
Newton-meters to Pound-feet Conversion Table
| Newton-meters | Pound-feet |
|---|---|
| 1 N-m | 0.73756215 lbf-ft |
| 5 N-m | 3.6878107 lbf-ft |
| 10 N-m | 7.3756215 lbf-ft |
| 25 N-m | 18.439054 lbf-ft |
| 50 N-m | 36.878107 lbf-ft |
| 100 N-m | 73.756215 lbf-ft |
| 200 N-m | 147.51243 lbf-ft |
| 300 N-m | 221.26864 lbf-ft |
| 500 N-m | 368.78107 lbf-ft |
Worked example: 10 lbf-ft = 13.558179 N-m. A wheel nut torque of 100 N-m is 100 x 0.737562 = 73.76 lbf-ft. A spec of 120 lbf-in is 120 x 0.112985 = 13.56 N-m.
Need other units? Open the full Torque Converter.
Popular Torque Conversions
Formula
newton-meters = value x unit factor (1 lbf-ft = 1.3558179483314004 N-m, 1 lbf-in = 0.1129848290276167 N-m)Understanding Torque Conversion
Torque is the turning effect of a force at a distance from an axis, expressed as force times length. Car engines and wheel nut specifications use newton-meters in most markets and pound-feet in the US. Small fasteners often quote pound-inches. Although foot-pounds of torque and foot-pounds of energy share a name, they measure different quantities.
Tips and Best Practices
- 1Multiply N-m by 0.7376 to get pound-feet.
- 2Twelve pound-inches make one pound-foot.
- 3Use a torque wrench set in the same unit the manufacturer lists.
Real-World Example
A wheel nut torque of 100 N-m is 100 x 0.737562 = 73.76 lbf-ft. A spec of 120 lbf-in is 120 x 0.112985 = 13.56 N-m.
Common Mistakes to Avoid
- Confusing pound-feet (torque) with foot-pounds of energy.
- Mixing lbf-in and lbf-ft, a factor of 12 error that can strip or crack a bolt.
- Applying a torque value tightened dry to a lubricated thread without checking the specification.
How to Use
- Type a number in the Pound-feet box.
- The Newton-meters result appears instantly; you can also edit the Newton-meters box to convert backwards.
- Use the swap button to reverse the direction and Copy result to copy the answer.
Frequently Asked Questions
How many newton-meters are in 1 lbf-ft?
How many pound-feet are in 1 N-m?
What is the formula to convert pound-feet to newton-meters?
How many lb-in are in a lb-ft?
Sources: NIST SP 811 (pound-force, foot, inch, g_n); SI Brochure (newton-meter).