Torque from one pound-force at one inch.
Pound-inches to Kilonewton meters Converter — lb in to kN m
Convert Pound-inch (lb in) to Kilonewton meter (kN m) using the exact conversion factor (1 pound-inch = 0.0001129848 kilonewton meter). See the formula, worked examples, and conversion table.
Pound-inches to Kilonewton meters converter
Converter
Engineering Converter
Convert common stress, force, torque, power, and energy units used in engineering.
Context values
Some unit families need one extra value for a physically accurate result.
Kilonewton meter is 1000 newton meter units.
Result = input x 0.112984829 / 1000.
Torque units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Pound-inches to Kilonewton meters
Pound-inch and Kilonewton meter both measure a quantity used in structural or mechanical engineering — commonly stress, pressure, force, torque, power, or energy — where converting between the unit conventions used in different regions, industries, or equipment specifications is a routine part of design work. Specifically: Torque from one pound-force at one inch, and kilonewton meter is 1000 newton meter units.
Formula
kilonewton meters = pound-inches × 0.000112984829028
This factor comes from each unit's defined relationship to the category's base unit: 1 pound-inch equals 0.112984829028 base units, and 1 kilonewton meter equals 1000 base units, so dividing one by the other gives the direct pound-inch-to-kilonewton meter factor of 0.000112984829028.
Simple example
1 lb in × 0.000112984829 = 0.0001129848 kN m
1 pound-inch = 0.0001129848 kilonewton meters.
Real-world example
100 lb in × 0.000112984829 = 0.0112984829 kN m
100 pound-inches = 0.0112984829 kilonewton meters.
Conversion table
| Pound-inch (lb in) | Kilonewton meter (kN m) |
|---|---|
| 1 lb in | 0.0001129848 kN m |
| 10 lb in | 0.0011298483 kN m |
| 50 lb in | 0.0056492415 kN m |
| 100 lb in | 0.0112984829 kN m |
| 500 lb in | 0.0564924145 kN m |
| 1,000 lb in | 0.112984829 kN m |
Reverse conversion: Kilonewton meter to Pound-inch
0.0001129848 kN m × 8850.745791 = 0.9999997431 lb in
0.0001129848 kilonewton meters = 0.9999997431 pound-inches.
pound-inches = kilonewton meters × 8850.74579133
For a page dedicated to this direction, see Kilonewton meter to Pound-inch.
Understanding the Pound-inch (lb in)
Torque from one pound-force at one inch.
Understanding the Kilonewton meter (kN m)
Kilonewton meter is 1000 newton meter units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilonewton meters are in 1 pound-inch?
1 pound-inch equals 0.0001129848 kilonewton meters, using the exact defined conversion factor rather than an estimate.
How do I convert pound-inch to kilonewton meter?
Multiply the pound-inch value by 0.000112984829. The converter above does this instantly to whatever precision you set.
How do I convert kilonewton meter back to pound-inch?
Use the reverse factor: 1 kilonewton meter equals 8,850.745791 pound-inches. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound-inch?
Pound-inch (lb in) is a unit of engineering.
What is a kilonewton meter?
Kilonewton meter (kN m) is a unit of engineering.
Is the pound-inch to kilonewton meter conversion exact?
Yes. Both pound-inch and kilonewton meter are defined by fixed standards rather than physical artifacts, so the factor of 0.000112984829 used above is exact to as many digits as you choose to display.
Why do engineering unit conventions vary so much by region and industry?
Pressure, force, and stress can be expressed in metric (pascal, newton), US customary (psi, pound-force), or older and industry-specific units (atmosphere, torr, kip) depending on the country, industry, and even the equipment manufacturer, which is why engineers routinely need to convert between them when working across specs from different sources.