Torque Units: Newton Meters and Foot-Pounds 指南

Use this guide when a converted number affects tools, fastener specs, motors, bicycles, automotive notes, and mechanical references. A reliable result keeps the original value, source unit, target unit, conversion factor, and rounding choice visible.

The goal is not to memorize every factor. The goal is to make the calculation traceable enough that someone else can review it later.

• Confirm whether the spec says lb-ft or ft-lb and what convention the manufacturer uses.
• Use a torque converter rather than treating torque as ordinary energy.
• Keep the required tightening sequence and tool calibration separate from unit conversion.

A useful conversion is traceable: it shows the original unit, the target unit, the factor used, and the rounding decision.