Torque Converter
Enter a torque (moment of force) in any common unit and see it in all the others instantly: millinewton-metre (mN·m), newton-centimetre (N·cm), newton-metre (N·m), kilonewton-metre (kN·m), gram-force centimetre (gf·cm), kilogram-force centimetre (kgf·cm), kilogram-force metre (kgf·m), ounce-force inch (ozf·in), pound-force inch (lbf·in) and pound-force foot (lbf·ft). The value is converted to newton-metres internally and then to every unit, so conversions are exact. Handy for cars and engines (N·m ↔ lbf·ft), fasteners and tightening specs (lbf·in, kgf·cm), small motors (mN·m, ozf·in) and physics or engineering. Everything is computed locally in your browser.
mN·m
1,000
N·cm
100
N·m
1
kN·m
0.001
gf·cm
10,197.162
kgf·cm
10.197162
kgf·m
0.10197162
ozf·in
141.61193
lbf·in
8.8507458
lbf·ft
0.73756215
How to use
- Type a torque value.
- Pick the unit you entered it in.
- Read the value in every other unit and copy whichever you need.
Frequently asked questions
- How many newton-metres is one pound-foot?
- 1 lbf·ft = 1.35581795 N·m exactly, so 1 N·m ≈ 0.7376 lbf·ft. A wheel-nut spec of 100 N·m is about 73.8 lbf·ft. lbf·ft (often written ft·lb) is common on US car and tool specs; N·m is the SI unit.
- What is the difference between lbf·ft and lbf·in?
- They're the same kind of unit at different lever lengths: 1 lbf·ft = 12 lbf·in. Small fasteners are usually specced in lbf·in (or kgf·cm), larger ones in lbf·ft. Don't confuse them — a 12× error in tightening torque is easy to make.
- Is torque the same as force or energy?
- No. Torque is force applied at a distance from a pivot (force × lever arm), which is why its unit is newton-metre. Energy also has units of newton-metres (the joule), but torque and energy are physically different quantities and are never added together.
- Why is torque not measured in joules even though N·m = J?
- Dimensionally a newton-metre equals a joule, but by convention torque keeps the name N·m (or lbf·ft) and energy uses the joule. Keeping the names separate avoids implying that a torque can be converted into an amount of energy.
Related tools
Force Converter
Convert force between newtons, kN, MN, dyne, gram-force, kilogram-force, ton-force, ounce-force and pound-force — all at once.
Density Converter
Convert density between kg/m³, g/cm³, g/mL, kg/L and lb/ft³, lb/in³, lb/gal, oz/in³, oz/gal and slug/ft³ — all at once.
Area Converter
Convert area between mm², cm², m², hectares, km², in², ft², yd², acres and mi² — all at once.
Acceleration Converter
Convert acceleration between m/s², cm/s² (Gal), mm/s², mGal, km/(h·s), ft/s², in/s², mph/s, kn/s and g — all at once.
Luminance Converter
Convert luminance between cd/m² (nits), stilb, apostilb, lambert, foot-lambert and skot — all at once.
Illuminance Converter
Convert illuminance between lux, kilolux, millilux, foot-candles, phot and milliphot — all at once, with lumen-per-area equivalents.