Convert torque and moment of force between N·m, kN·m, lbf·ft, lbf·in, kgf·m and dyn·cm with exact factors. Free, accurate online tool.
Torque, also called moment of force, measures the tendency of a force to rotate an object around an axis. In other words, it is what makes a wrench turn a bolt, an engine deliver power to a shaft, or a door open when we push the handle. The International System unit for torque is the newton metre (N·m), defined as a force of one newton applied perpendicularly to a one-metre lever arm. Although the newton metre is the official standard, other units remain widely used in different contexts. The kilogram-force metre (kgf·m) appears frequently in older engine specifications and technical catalogues in Brazil, and equals 9.80665 N·m — a value that reflects the standard acceleration of gravity. The pound-force foot (lbf·ft) and the pound-force inch (lbf·in) dominate North American technical literature, especially in vehicle manufacturer manuals and bolt torque tables, where each fastener has a tightening value specified by the manufacturer. Conversion between these units is linear and based on fixed factors: 1 kN·m equals 1000 N·m; 1 lbf·ft equals 1.35582 N·m; 1 lbf·in equals 0.112985 N·m; 1 kgf·m equals 9.80665 N·m; and 1 dyn·cm equals 0.0000001 N·m. These factors, verified against the unit catalogue of this converter, are the same ones adopted in metrology standards and ensure reliable results for professional use. Precision in torque is critical in many applications. In mechanical assemblies, a bolt tightened below the specified torque may come loose during use, while excessive torque can strip the thread or deform the part. In engineering design, sizing shafts, gearboxes and couplings depends on the transmitted torque. In vehicles, engine torque determines acceleration and load capacity. For this reason, correctly converting between N·m, lbf·ft and kgf·m is not merely a matter of convenience, but a necessity to avoid assembly and design errors. This converter performs all calculations locally in your browser, applying the standardized conversion factors. Simply select the source unit and the target unit, enter the value, and the result appears instantly, with no data sent to external servers. The tool is completely free, with no registration and no conversion limit.
Divide the value in N·m by 9.80665. For example, 10 N·m equals approximately 1.02 kgf·m.
1 pound-force foot equals 1.35582 N·m.
Force is a linear push or pull; torque is the rotational effect of that force around an axis, which also depends on the lever arm.
Multiply the value in lbf·in by 0.112985. For example, 100 lbf·in equals 11.2985 N·m.
Yes, completely free, with no registration and no daily conversion limit.