Newton-Metre (Nm)
The newton-metre (Nm) is the unit of torque, used to describe an engine’s twisting force and the tightening torque of bolts.
What is Newton-Metre (Nm)?
Engine torque figures in Europe are given in Nm. Wheel bolts on cars are typically tightened to around 100–140 Nm, depending on the model. In the US, torque is often given in pound-feet (lb-ft); 1 lb-ft is about 1.36 Nm. High torque at low revs makes a car feel strong without changing gear, which is why diesel and electric cars feel punchy.
How it works
One newton-metre is the torque of a force of one newton acting at a distance of one metre from the turning point.
Why it matters for your car
Always use the exact torque from the manufacturer’s data, not a general figure. Do not confuse Nm with kW: torque is turning force, power is how fast work is done.
Other terms
- Blow-off Valve (Diverter Valve)
- Blower Resistor (Fan Speed Resistor)
- Carbon Fibre Body Parts
- Cornering Light
- Diesel Intake Throttle Valve
- Diesel Runaway
- Electric Brake Booster (Electromechanical Booster)
- Flooded Engine
- Instrument Cluster
- NOx Storage Catalyst (Lean NOx Trap)
- Paintless Dent Repair (PDR)
- Parking Lights (Sidelights)
- Preconditioning
- Ride Height
- Running Boards
- Semi-Slick Tyre
- Serpentine Belt (Auxiliary Belt)
- Tonneau Cover
- Volumetric Efficiency
- WLTP (Worldwide Harmonised Light Vehicles Test Procedure)