Torque Converter
Torque is a measure of rotational force — the tendency of a force to rotate an object around an axis. It is calculated as the product of force and the perpendicular distance from the axis of rotation (lever arm). The SI unit is the Newton-meter (N·m), but engineers and mechanics frequently work with kilogram-force meters (kgf·m), pound-force feet (lbf·ft), and pound-force inches (lbf·in) depending on their region and industry.
This converter lets you instantly translate a torque value between all four common units using precise conversion factors. Enter a value in any unit — Newton-meters, kgf·m, lbf·ft, or lbf·in — and see the equivalent in every other unit at once. All calculations are performed client-side with no rounding ambiguity.
How it works
All units are converted through the Newton-meter base. Factors: 1 kgf·m = 9.80665 N·m; 1 lbf·ft = 1.35582 N·m; 1 lbf·in = 0.11298 N·m. To convert from unit A to unit B: value_B = value_A × factor_A / factor_B.
Use cases
- Converting engine torque specs between metric (N·m) and imperial (lbf·ft) for automotive work
- Verifying bolt tightening torques when using a wrench calibrated in different units
- Translating torque ratings for electric motors between SI and legacy engineering units
- Comparing torque specifications in international product manuals and data sheets
- Educational exercises in physics and mechanical engineering involving rotational dynamics