How does one convert newton metres to foot pounds?
You can’t because the newton is a unit of force and the pound is a unit of mass. However pounds is sometimes used as an abbreviation for pounds.force (i.e. the equivalent force of a pound mass under the influence of gravity at 32.2 feet per second per second). 1 newton metre is 0.737 562 147 foot pounds.force. I would very strongly recommend that you don’t convert from SI units to US units. In my 30+ years in engineering, I have seen many disasters (some life-threatening) caused by unit conversion. The international community has adopted the SI system as being the most coherent and sensible system. The UK & US signed up to it in 1875, but have been desperately slow at implementing it. So please convert your foot.pounds force into newton metres (multiply by 1.355817953), but never convert newton metres to foot pounds.force.
