Torque Converter

Multiply newton-meters by 0.737562. Example: 100 N·m × 0.737562 = 73.76 ft·lb. To go the other way, multiply ft·lb by 1.355818 to get N·m.

100 N·m = 73.76 ft·lb (100 × 0.737562). This is a typical torque figure for wheel lug nuts, which are usually specified in the 80-120 N·m (60-90 ft·lb) range.

Both are pound-force torque units, but they use a different lever-arm length: 1 ft·lb = 12 in·lb. Mixing them up is a common real error — a spec of 10 ft·lb is 120 in·lb, ten times larger than the number alone suggests if you drop the unit.

It uses standard, exact-by-definition conversion factors (1 ft·lb = 1.355818 N·m, 1 kgf·m = 9.80665 N·m via standard gravity), so results are limited only by the decimal precision you choose, not by measurement error. For safety-critical fasteners, always use a calibrated torque wrench and the manufacturer's specification.

Multiply kgf·m by 9.80665. Example: 1 kgf·m = 9.80665 N·m. This factor comes from standard gravity and is used to bridge older kilogram-force specs (common in older machinery and some regional standards) to the modern SI newton-meter.