Torque Converter
Convert between Newton-metres, pound-force feet, kilogram-force metres and more instantly. Essential for mechanics, engineers and DIYers working with torque specifications.
| From | To Newton-metres (N·m) | Common use |
|---|---|---|
| 1 Newton-metre (N·m) | 1 N·m | SI standard — automotive, engineering |
| 1 Kilonewton-metre (kN·m) | 1,000 N·m | Heavy machinery, structural connections |
| 1 Pound-force foot (lbf·ft) | 1.35582 N·m | US workshop manuals, engine specs |
| 1 Pound-force inch (lbf·in) | 0.112985 N·m | Small fasteners, electronics |
| 1 Kilogram-force metre (kgf·m) | 9.80665 N·m | European engineering, older manuals |
| 1 Kilogram-force centimetre (kgf·cm) | 0.0980665 N·m | Small assemblies, servo motors |
| 1 Ounce-force inch (ozf·in) | 0.00706155 N·m | Small motors, precision instruments |
Common Torque Conversion Questions
What is torque and how is it measured?
Torque is a rotational force — the twisting effect produced when a force is applied at a distance from a pivot. It's measured as force × distance: a 1 N force at 1 metre from a pivot = 1 N·m of torque. The SI unit is Newton-metres (N·m).
How do you convert Newton-metres to pound-force feet?
1 N·m = 0.737562 lbf·ft. Multiply N·m by 0.7376 to get lbf·ft. Going the other way: 1 lbf·ft = 1.35582 N·m. So 200 N·m ≈ 147.5 lbf·ft — a figure you'd see for a mid-range petrol engine.
What torque should I tighten wheel nuts to on a UK car?
Most UK passenger cars require wheel nuts tightened to 85–130 N·m (63–96 lbf·ft). Always check your vehicle handbook — the exact figure depends on stud diameter and thread pitch. Use a calibrated torque wrench; incorrect torque is a leading cause of wheel loss on UK roads.
What is the difference between N·m and kgf·m?
1 kgf·m = 9.80665 N·m. Kilogram-force metres appear in older European and Japanese workshop manuals. Modern UK documentation uses N·m. If your manual quotes kgf·m, multiply by 9.807 to get N·m.
How much torque do UK car engines produce?
A small petrol hatchback produces roughly 150–200 N·m. A mid-size diesel produces 300–400 N·m. Performance cars may exceed 600–700 N·m. Electric vehicles often produce peak torque from 0 rpm — a Tesla Model 3 Long Range produces around 450 N·m.