Newton-millimeters to Pound-inches Converter
Enter the torque in newton-millimeters below to convert it to pound-inches.
Convert Newton-millimeters to Pound-inches
Enter a value in newton-millimeters (N·mm) to convert to pound-inches (lb·in).
Newton-millimeter to Pound-inch Conversion Table
Table showing various newton-millimeter measurements converted to pound-inches. Click any preset value or arrow to load it into the converter.
| Newton-millimeters (N·mm) | Pound-inches (lb·in) |
|---|---|
| 1 N·mm | 0.0088507 lb·in |
| 2 N·mm | 0.0177015 lb·in |
| 2.5 N·mm | 0.0221269 lb·in |
| 5 N·mm | 0.0442537 lb·in |
| 10 N·mm | 0.0885075 lb·in |
| 15 N·mm | 0.1327612 lb·in |
| 20 N·mm | 0.1770149 lb·in |
| 25 N·mm | 0.2212686 lb·in |
| 30 N·mm | 0.2655224 lb·in |
| 50 N·mm | 0.4425373 lb·in |
How to Convert Newton-millimeters to Pound-inches
To convert newton-millimeters to pound-inches, multiply the torque by the following conversion ratio: 0.0088507 pound-inches/newton-millimeter.
Since one newton-millimeter is equal to 0.0088507 pound-inches, you can use this simple formula to convert:
The torque in pound-inches is equal to the torque in newton-millimeters multiplied by 0.0088507.
For example, here's how to convert 5 newton-millimeters to pound-inches using the formula above.
How Many Pound-inches Are in a Newton-millimeter?
There are 0.0088507 pound-inches in a newton-millimeter, which is why we use this value in the formula above.
Our newton-millimeter to pound-inch calculator automatically converts your torque measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Newton-millimeters and pound-inches are both units used to measure torque. Keep reading to learn more about each unit.
What Is a Newton-millimeter?
A newton-millimeter is a unit of torque equal to 1/1,000 of a newton-meter (0.001 N·m). Equal to 0.001 N·m. [1]
The newton-millimeter is classified as a metric and SI-compatible unit of torque. Newton-millimeters can be abbreviated as N·mm; for example, 1 newton-millimeter can be written as 1 N·mm.
When working with newton-millimeters (N·mm) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, newton-millimeters (N·mm) are widely used across fine-tolerance laboratory, analytical, and micro-scale torque measurements within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Pound-inch?
A pound-inch is a unit of torque equal to 0.1129848 newton-meters (N·m), the base unit for torque. 1/12 of a pound-foot (0.112985 N·m). [2]
The pound-inch is classified as a US customary and imperial unit of torque. Pound-inches can be abbreviated as lb·in; for example, 1 pound-inch can be written as 1 lb·in.
When working with pound-inches (lb·in) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, pound-inches (lb·in) are widely used across standard torque applications within US customary and imperial workflows, engineering documentation, and technical data sheets.
When converting torque between newton-millimeters (N·mm) and pound-inches (lb·in), keep full floating-point precision (1 N·mm = 0.0088507 lb·in; 1 lb·in = 112.984829 N·mm) during intermediate calculations and round only the final pound-inch figure to match your instrument tolerance.
More Newton-millimeter & Pound-inch Conversions
Need to calculate in the opposite direction? Use our pound-inches to newton-millimeters calculator to switch your starting unit immediately. You can also explore related tools such as converting pound-inches to newton-millimeters, converting newton-meters to pound-inches, or converting pound-feet to pound-inches.
Convert from Newton-millimeters
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Moment of Force & Torque))·Torque Metrology Standard — Newton-millimeters (N·mm) to Pound-inches (lb·in)
- [2]NIST App. B.8 SpecificationNIST App. B.8 (NIST SP 811 Alphabetical Conversion Factors)·Unit Specifications: Newton-millimeter (N·mm) & Pound-inch (in·lbf) (lb·in)
- [3]BIPM ReferenceBIPM (Mechanics & Rotational Work (N·m))·Conversion Factors & Mathematical Basis (N·mm to lb·in)