Nm to ft-lbs Converter
This tool converts newton metres (Nm) to foot-pounds (ft-lb) and back again in one step, so you can match a torque wrench reading to whichever unit your workshop manual or fastener specification uses. Newton metres are the metric torque unit used by most vehicle manufacturers outside North America, while foot-pounds remain standard in many American service manuals and torque wrenches, and mixing the two up when tightening bolts, wheel nuts or engine fasteners risks under or over-tightening. Type a figure into either the Nm or ft-lb field and the other updates instantly, using the exact factor of 1 Nm = 0.737562 ft-lb (and 1 ft-lb = 1.355818 Nm), derived from the SI definitions of the foot and the pound-force. With the default value of 100 Nm entered, the calculator shows 73.756 ft-lb, and reversing the calculation from 73.756 ft-lb returns you to 100 Nm. Below the converter is a reference table of common torque specifications, from bicycle stem bolts through to spark plugs, sump plugs and large structural bolts, each shown in both units so you can sanity-check a reading at a glance. Use it whenever you are setting a torque wrench, comparing specifications across brands, or buying tools calibrated in a different unit system to your manual, and always confirm the exact torque figure required against your vehicle or equipment manufacturer's own specifications before tightening any fastener.
Newton Metres to Foot-Pounds
Foot-Pounds to Newton Metres
Common Torque Reference Values
| Application | Typical Torque (Nm) | Equivalent (ft-lb) |
|---|---|---|
| Bicycle stem bolt (aluminium) | 5 Nm | 3.69 ft-lb |
| Motorcycle axle nut | 65 Nm | 47.94 ft-lb |
| Car wheel nut (typical) | 120 Nm | 88.51 ft-lb |
| Engine cylinder head bolt | 80 Nm | 59.00 ft-lb |
| Spark plug (petrol engine) | 25 Nm | 18.44 ft-lb |
| Sump drain plug | 30 Nm | 22.13 ft-lb |
| Large structural bolt (M20) | 400 Nm | 295.02 ft-lb |