🔩 Nm to Ft-Lbs Converter
Convert SI torque values into imperial units for tooling, automotive, and mechanical specs.
Insert any torque in newton-meters to see foot-pounds, inch-pounds, and inch-ounces—all derived using precise constants.
Use positive for clockwise torque, negative for counterclockwise if you need to indicate direction.
Foot-pounds (lb·ft)
147.51243
Inch-pounds (lb·in)
1,770.149158
Inch-ounces (oz·in)
28,322.386532
How to Use This Calculator
Enter torque in newton-meters
Use values from SI torque specs, CAD outputs, or test equipment.
Review the foot-pound result
The converter multiplies by 0.73756 to obtain lb·ft, a standard unit for automotive and mechanical tools.
Check inch-based outputs
Inch-pounds and inch-ounces help when dealing with fastener torque and smaller assemblies.
Formula
lb·ft = N·m × 0.7375621493
Derived from 1 N·m = 0.737562149277 lb·ft. Inch-based outputs multiply foot-pounds by 12 (for lb·in) and then by 16 (for oz·in).
Use the formula breakdown to confirm the calculation logic or perform the conversion manually if needed.
Full Description
Newton-meters are the SI base unit for torque, but maintenance manuals, tool markings, and automotive specs often rely on foot-pounds or inch-pounds. This converter ensures your torque values stay accurate across systems.
The additional inch-pound and inch-ounce outputs appear automatically so you can switch between fastener torque charts, small electronics specs, or mechanical assembly requirements without re-entering data.
Use the Nm to In-Lbs Converter for fast reverse lookups, or pair this tool with the Torque to HP Calculator when you need to translate torque into rotational power.
Frequently Asked Questions
Why is the conversion factor 0.73756?
It stems from the exact relationship between meters, feet, newtons, and pounds-force. The constant ensures engineering-grade accuracy.
Can I convert very large torques?
Yes. The computation scales linearly, so large torques (for example, industrial drive shafts) work just as well.
Does this handle negative torque?
Negative inputs are allowed and propagate through the conversion, indicating opposite direction.
What if my torque is in ounce-inches?
Use the Inch-Lbs to Nm converter to go from oz·in → lb·in → N·m, or extend the torque converter utility with oz·in input.