Home › Unit Conversion › Pound-feet (ft-lb) to Newton-meters
Pound-feet (ft-lb) to Newton-meters (lbf·ft to N·m)
Convert pound-feet (ft-lb) to newton-meters: 1 lbf·ft = 1.35582 N·m. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.
Formula
1 lbf·ft = 1.35582 N·m
newton-meters = pound-feet (ft-lb) × 1.355817948 — reverse: pound-feet (ft-lb) = newton-meters × 0.7375621493
The factor is derived from the SI definitions of both units (base unit: Nm) as listed in NIST SP 811; results on this page are shown to 6 significant figures, the API returns up to 12.
Worked examples
- 5 lbf·ft = 6.77909 N·m
- 12.5 lbf·ft = 16.9477 N·m
- 100 lbf·ft = 135.582 N·m
Pound-feet (ft-lb) to newton-meters conversion table
| Pound-feet (ft-lb) (lbf·ft) | Newton-meters (N·m) |
|---|---|
| 1 | 1.35582 |
| 2 | 2.71164 |
| 3 | 4.06745 |
| 4 | 5.42327 |
| 5 | 6.77909 |
| 6 | 8.13491 |
| 7 | 9.49073 |
| 8 | 10.8465 |
| 9 | 12.2024 |
| 10 | 13.5582 |
| 15 | 20.3373 |
| 20 | 27.1164 |
| 25 | 33.8954 |
| 30 | 40.6745 |
| 40 | 54.2327 |
| 50 | 67.7909 |
| 75 | 101.686 |
| 100 | 135.582 |
| 200 | 271.164 |
| 250 | 338.954 |
| 500 | 677.909 |
| 1000 | 1355.82 |
FAQ
How many newton-meters are in one pound-foot?
1 lbf·ft = 1.35582 N·m. The factor comes from the SI definitions of both units (NIST SP 811 / BIPM), so it is exact or correct to at least 10 significant figures.
What is the formula to convert pound-feet (ft-lb) to newton-meters?
Multiply the value in pound-feet (ft-lb) by 1.355817948: newton-meters = pound-feet (ft-lb) × 1.355817948. For example, 5 lbf·ft = 6.77909 N·m.
How do I convert newton-meters back to pound-feet (ft-lb)?
Multiply by the inverse factor 0.7375621493 (pound-feet (ft-lb) = newton-meters × 0.7375621493), or use the newton-meters-to-pound-feet (ft-lb) page.
Related conversions
- Newton-meters to pound-feet (ft-lb) (reverse)
- Torque Converter — all torque units in one tool
- Newton-meters to Pound-inches (in-lb)
- Pound-inches (in-lb) to Newton-meters
- Newton-meters to Kilogram-force meters
- Kilogram-force meters to Newton-meters
- Pound-feet (ft-lb) to Pound-inches (in-lb)
- Pound-inches (in-lb) to Pound-feet (ft-lb)
- Kilogram-force meters to Pound-feet (ft-lb)
- Pound-feet (ft-lb) to Kilogram-force meters
Machine access
- API:
GET https://tttkmbb.com/api/v1/convert?value=5&from_unit=lbf_ft&to_unit=Nm - MCP: server
https://tttkmbb.com/mcp, toolconvert_unitswith{"value":5,"from_unit":"lbf_ft","to_unit":"Nm"} - Markdown: https://tttkmbb.com/conversion/ft-lbs-to-newton-meters.md · JSON: https://tttkmbb.com/conversion/ft-lbs-to-newton-meters.json (add
?value=for a result) · Units: /api/v1/units?quantity=torque - OpenAPI operationId:
convert_units. Freshness:static. Authentication: none.