Foot Pounds to Newton Meters Converter

Conversion Updated 15 Jun 2026

Convert foot-pounds (ft-lb) to newton-meters (Nm), the SI unit of torque and energy. Useful for international specifications, automotive work, and mechanical engineering. Formula: Nm = ft-lb × 1.355817948.

  • Conversion constants are fixed and do not vary by region.

Formula

newton-meters = foot-pounds x 1.355817948
  • To convert foot-pounds to newton-meters, multiply your value by the fixed factor 1.355817948 (so 1 ft-lb = 1.355817948 Nm).
  • The factor comes from the internationally agreed definitions of each unit, so it never changes.
  • Displayed results are rounded for readability, but the full-precision value is used in the calculation.

Example

Inputs
  • Foot-pounds (ft-lb): 100

Start with 100 ft-lb. Multiply by 1.355817948 to get 135.5817948 Nm.

Frequently asked questions

How do I convert foot-pounds to newton-meters?
Multiply the number of foot-pounds by 1.355817948. For example, 100 ft-lb equals 135.5817948 Nm.
Are these conversion factors accurate?
Yes. The calculator uses internationally accepted definitions for each unit, so the conversion factor is exact.
Why can tiny differences appear after conversion?
Very small differences are only a display effect from rounding the output. The underlying calculation keeps full precision.