Convert pound-force inch [lbf*in] to newton meter [N*m] Online | Free torque Converter

Inch [lbf·in]

Pound-force inch, abbreviated as lbf·in, is a unit of torque in the Imperial system. It measures the rotational force applied at a distance of one inch from a pivot point. Torque represents the tendency of a force to rotate an object about an axis, and lbf·in is commonly used in mechanical engineering, automotive applications, and machinery design to quantify small to medium torque values. One lbf·in corresponds to applying a force of one pound-force at a perpendicular distance of one inch from the rotation axis. For example, tightening a bolt with a torque wrench set to 50 lbf·in means applying a force that produces 50 pound-force inches of rotational effort. This unit is particularly useful for fasteners, small motors, and mechanical assemblies where precise torque is crucial to prevent over-tightening or under-tightening. While larger torque values are often measured in pound-force feet (lbf·ft) or Newton-meters (N·m), lbf·in provides a convenient scale for tasks requiring finer control. Understanding lbf·in ensures safe and effective mechanical operation, proper assembly of components, and accurate measurement of rotational forces in engineering and industrial applications.

Newton Meter [N·m]

Newton meter (N·m) is the standard SI unit of torque, measuring the rotational force applied to an object around an axis. It combines force in newtons (N) with distance in meters (m) from the axis of rotation. One newton meter represents the torque generated when a force of one newton is applied perpendicularly at a distance of one meter from the rotation axis. This unit is widely used in physics, mechanical engineering, automotive design, robotics, and industrial applications to quantify torque, rotational performance, and mechanical efficiency. A higher N·m value indicates stronger torque and greater ability to cause angular acceleration, while a lower value signifies less rotational force. Engineers and designers use this measure to calculate torque requirements, optimize machinery, ensure component stability, and prevent mechanical failure. By linking force and rotational distance, newton meter provides a practical, precise, and universally recognized standard for analyzing and managing torque in a variety of mechanical, industrial, and scientific applications.