How many newton metres are in a foot-pound?

1 ft·lb = 1.3558 N·m. To convert any amount, multiply by 1.3558.

How do you convert foot-pounds to newton metres?

Multiply the number of foot-pounds by 1.3558 to get newton metres. The formula is shown in the "How it's calculated" section above.

Where does the conversion factor come from?

It's a published international standard. Most are defined exactly by international agreement (e.g. 1 inch = 25.4 mm exactly, 1 lb = 0.45359237 kg exactly). Source citations are listed under the formula above.

Unit converter — Torque

Foot-pounds to newton metres converter

Convert foot-pounds (ft·lb) to newton metres (N·m). Source-cited conversion factor, exact to the displayed precision.

Results are mathematically exact for the displayed precision. How we calculate.

How it's calculated

Convert foot-pounds to newton metres— the formula

Foot-pounds convert to newton metres by multiplying by the published conversion factor. The factor below is exact to the precision shown, sourced from the citation under the formula.

N·m = ft·lb × 1.3558

ft·lb = N·m × 0.737562

Newton metre: SI coherent derived unit (BIPM). 1 lbf = 4.4482216152605 N; 1 ft = 0.3048 m, so 1 ft·lbf = 1.3558179483314004 N·m; 1 in·lbf = 1/12 ft·lbf. 1 kgf = 9.80665 N exactly, so 1 kgf·m = 9.80665 N·m (NIST SP 811).

Questions

Frequently asked questions

How many newton metres are in a foot-pound?
1 ft·lb = 1.3558 N·m. To convert any amount, multiply by 1.3558.
How do you convert foot-pounds to newton metres?
Multiply the number of foot-pounds by 1.3558 to get newton metres. The formula is shown in the "How it's calculated" section above.
Where does the conversion factor come from?
It's a published international standard. Most are defined exactly by international agreement (e.g. 1 inch = 25.4 mm exactly, 1 lb = 0.45359237 kg exactly). Source citations are listed under the formula above.