Newton Meters to Foot Pounds Converter

Multiply newton-meters by 0.7375621492772654 to get foot-pounds. For example, 100 N·m times 0.737562 is about 73.76 ft·lb. To go the other way, multiply foot-pounds by 1.3558179483314 to get newton-meters.

It is built from exact definitions: one foot is 0.3048 meters, one pound-force is 0.45359237 kg times standard gravity 9.80665 m/s squared (4.4482216152605 N), so one foot-pound equals 1.3558179483314 N·m. The reciprocal of that, 0.7375621492772654, converts newton-meters to foot-pounds.

Both measure torque, but inch-pounds use a one-inch lever arm instead of one foot. There are 12 inches in a foot, so 1 ft·lb equals 12 in·lb. Inch-pounds are common for small fasteners where foot-pound values would be awkwardly small, such as 25 ft·lb equaling 300 in·lb.

They share the same units (force times distance), but they are different quantities. Torque is a rotational effort applied around an axis, while a joule is work or energy. This converter treats the input as torque, so it reports foot-pounds, inch-pounds, and kilogram-force-meters, not joules or calories.

Follow the figure in your vehicle or equipment manual and match its units before you set the wrench. If the spec is in newton-meters but your wrench reads foot-pounds, convert here first, then dial in the rounded value. When a fastener is critical, torque to the manufacturer figure rather than a rounded estimate.

Yes. A negative value represents loosening or reverse torque and converts the same way as a positive one, just with the sign preserved. For instance, -100 N·m converts to about -73.76 ft·lb.