Home › Unit Conversion › Pound-feet (ft-lb) to Pound-inches (in-lb)
Pound-feet (ft-lb) to Pound-inches (in-lb) (lbf·ft to lbf·in)
Convert pound-feet (ft-lb) to pound-inches (in-lb): 1 lbf·ft = 12 lbf·in. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.
Formula
1 lbf·ft = 12 lbf·in
pound-inches (in-lb) = pound-feet (ft-lb) × 12 — reverse: pound-feet (ft-lb) = pound-inches (in-lb) × 0.08333333333
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 = 60 lbf·in
- 12.5 lbf·ft = 150 lbf·in
- 100 lbf·ft = 1200 lbf·in
Pound-feet (ft-lb) to pound-inches (in-lb) conversion table
| Pound-feet (ft-lb) (lbf·ft) | Pound-inches (in-lb) (lbf·in) |
|---|---|
| 1 | 12 |
| 2 | 24 |
| 3 | 36 |
| 4 | 48 |
| 5 | 60 |
| 6 | 72 |
| 7 | 84 |
| 8 | 96 |
| 9 | 108 |
| 10 | 120 |
| 15 | 180 |
| 20 | 240 |
| 25 | 300 |
| 30 | 360 |
| 40 | 480 |
| 50 | 600 |
| 75 | 900 |
| 100 | 1200 |
| 200 | 2400 |
| 250 | 3000 |
| 500 | 6000 |
| 1000 | 12000 |
FAQ
How many pound-inches (in-lb) are in one pound-foot?
1 lbf·ft = 12 lbf·in. 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 pound-inches (in-lb)?
Multiply the value in pound-feet (ft-lb) by 12: pound-inches (in-lb) = pound-feet (ft-lb) × 12. For example, 5 lbf·ft = 60 lbf·in.
How do I convert pound-inches (in-lb) back to pound-feet (ft-lb)?
Multiply by the inverse factor 0.08333333333 (pound-feet (ft-lb) = pound-inches (in-lb) × 0.08333333333), or use the pound-inches (in-lb)-to-pound-feet (ft-lb) page.
Related conversions
- Pound-inches (in-lb) to pound-feet (ft-lb) (reverse)
- Torque Converter — all torque units in one tool
- Newton-meters to Pound-feet (ft-lb)
- Pound-feet (ft-lb) to Newton-meters
- 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
- 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=lbf_in - MCP: server
https://tttkmbb.com/mcp, toolconvert_unitswith{"value":5,"from_unit":"lbf_ft","to_unit":"lbf_in"} - Markdown: https://tttkmbb.com/conversion/ft-lbs-to-in-lbs.md · JSON: https://tttkmbb.com/conversion/ft-lbs-to-in-lbs.json (add
?value=for a result) · Units: /api/v1/units?quantity=torque - OpenAPI operationId:
convert_units. Freshness:static. Authentication: none.