result equals value times from-factor divided by to-factor
Torque Conversion =
Solution in Other Units
Unit
Value
Newton-Meter (N·m)
1
Kilonewton-Meter (kN·m)
0.001
Pound-Foot (lbf·ft)
0.73756215
Pound-Inch (lbf·in)
8.8507458
Dyne-Centimeter (dyn·cm)
1
Dyne-Meter (dyn·m)
100000
Gram-Centimeter (g·cm)
10197.214
Gram-Meter (g·m)
101.97162
Kilogram-Centimeter (kg·cm)
10.197162
Kilogram-Meter (kg·m)
0.10197162
Newton-Centimeter (N·cm)
100
Newton-Millimeter (N·mm)
1000
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Torque Unit Conversion
This converter transforms a torque value from one unit into all other supported torque units.
result = value × (from factor / to factor)
How It Works
This converter transforms a torque value from one unit into all other supported torque units. Each unit is defined relative to the Newton-meter (N·m) as the base unit.
Example Problem
Convert 50 newton-meters (N·m) to foot-pounds (ft·lbf).
1 N·m = 0.7376 ft·lbf.
50 × 0.7376 = 36.88 ft·lbf.
Key Concepts
Torque is a rotational force measured as force times lever arm distance. The SI unit is the Newton-meter (N·m), and the most common imperial unit is the foot-pound (ft·lbf). Conversion between torque units uses the base relationship 1 N·m = 0.7376 ft·lbf. Other units like kilogram-force-meter (kgf·m) and inch-pound (in·lbf) are common in automotive and fastener specifications.
Applications
Automotive repair: converting torque specifications between N·m and ft·lbf for tightening engine bolts, lug nuts, and suspension fasteners
Industrial equipment: converting motor output torque between SI and imperial units for specification sheets and procurement
Aerospace fasteners: working with inch-pound (in·lbf) torque specs common in aircraft maintenance manuals
International engineering: translating between kgf·m (common in Japanese and European older specs) and N·m or ft·lbf
Common Mistakes
Confusing Newton-meters (N·m) with Joules (J) — they share the same dimensions but measure different physical quantities (torque vs. energy)
Mixing up foot-pounds of torque (ft·lbf) with foot-pounds of energy (ft·lb) — context matters when the same unit name appears in different fields
Forgetting the force type in kgf·m — kilogram-force is a gravitational unit (9.80665 N), not the same as kilogram-mass
Frequently Asked Questions
What is torque?
Torque is a rotational force measured as the product of force and the perpendicular distance from the axis of rotation. The SI unit is the Newton-meter (N·m).
How do you convert N·m to lb·ft?
Divide the N·m value by approximately 1.3558. For example, 100 N·m ≈ 73.76 lb·ft.
What is the difference between torque and force?
Force acts in a straight line, while torque causes rotation. Torque equals force multiplied by the lever arm distance.