TorquePound Feet to Newton Meters

Pound-Feet to Newton-Meters

Updated: July 25, 2026 · Source: NIST Guide to the SI, Appendix B (Authoritative SI and U.S. customary conversion-factor reference.)

Methodology·How We Verify

Snapshot

1 pound-foot equals approximately 1.3558179483 newton-meters.

Reference basis: Multiply pound-feet by approximately 1.3558179483.
Example: For 100 pound-feet, the result is about 135.58179483 newton-meters.
Source basis: NIST Guide to the SI, Appendix B.

Interactive conversion

Converter Calculator

Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.

1.355818 Newton-meters (N·m)

Switch

API and AI agent access

Pound-Feet to Newton-Meters.

Machine-readable identifiers

Conversion family: torque
Source unit: pound_feet
Target unit: newton_meters

Use these identifiers in the API request. Sources and model limits also apply to software clients.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "torque",
  "value": 1,
  "from": "pound_feet",
  "to": "newton_meters"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "torque",
    "value": 1,
    "from": "pound_feet",
    "to": "newton_meters",
    "result": {
      "raw": 1.3558179483314003,
      "display": "1.355818"
    },
    "canonicalPath": "/torque/pound-feet-to-newton-meters/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

The converter converts torque, not energy. Although torque and work can share dimensionally related unit components, pound-foot torque describes a turning moment and should not be relabeled as a foot-pound of energy.

Multiply pound-feet by approximately 1.3558179483.

Conversion Basis

Multiply pound-feet by approximately 1.3558179483.
For 100 pound-feet, the result is about 135.58179483 newton-meters.
The snapshot, calculator, common values, and reverse route use the same conversion basis.
Source: NIST Guide to the SI, Appendix B (Authoritative SI and U.S. customary conversion-factor reference.)

Reference & Scope

The factor follows from the international foot and pound-force relationships.

Source: NIST Guide to the SI, Appendix B (Authoritative SI and U.S. customary conversion-factor reference.)

Common Conversion Values

Pound-feet (lbf·ft)	Newton-meters (N·m)
1	1.355818
10	13.558179
25	33.895449
50	67.790897
75	101.686346
100	135.581795
150	203.372692
200	271.16359

Questions & answers

Frequently Asked Questions

What is 1 pound-foot in newton-meters?

1 Pound-foot equals 1.355818 Newton-meters on this page.

When would I convert pound-feet to newton-meters?

This route is useful when translating torque values across SI, imperial, and kilogram-force conventions so fastener specs, drivetrain ratings, and mechanical calculations stay comparable.

How do I reverse Pound-feet to Newton-meters?

Use the mirror Newton-meters to Pound-feet route; it applies the inverse relationship with the same torque assumptions.