Inch Lbs to Nm Converter

What Is Inch-Pounds to N·m Conversion?

Inch-pounds (in·lb or lb·in) and newton-meters (N·m) both measure torque, the rotational force applied at a distance from a pivot. Mechanics, automotive technicians, and engineers switch between these units when reading bolt specs, wrench settings, or equipment manuals from different regions. This converter gives instant bidirectional results with the exact conversion factor.

Conversion Formulas

To convert inch-pounds to newton-meters, multiply by the standard factor:

$$N\cdot m = in\cdot lb \times 0.112985$$

To convert newton-meters to inch-pounds:

$$in\cdot lb = N\cdot m \times 8.8507$$

Because 12 inch-pounds equal 1 foot-pound, you can also relate torque to ft·lb:

$$ft\cdot lb = \frac{in\cdot lb}{12}$$

Common Torque Conversions

• 10 in·lb = 1.1299 N·m
• 50 in·lb = 5.6492 N·m
• 100 in·lb = 11.2985 N·m
• 5 N·m = 44.25 in·lb
• 20 N·m = 177.01 in·lb
• 50 N·m = 442.54 in·lb

When to Use Each Unit

Inch-pounds are common for smaller fasteners, electronics assembly, and precision torque specs in US manuals. Newton-meters are the SI standard used in most international engineering documents, automotive service data outside the US, and physics calculations. Use the Torque Calculator when you need to compute torque from force and lever arm, or the Inch Pounds to Foot Pounds Converter for imperial torque scaling.