Torque from one pound-force at one inch.
Pound-inches to Meganewton meters Converter — lb in to MN m
Convert Pound-inch (lb in) to Meganewton meter (MN m) using the exact conversion factor (1 pound-inch = 1.129848e-7 meganewton meter). See the formula, worked examples, and conversion table.
Pound-inches to Meganewton 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.
Meganewton meter is 1000000 newton meter units.
Result = input x 0.112984829 / 1e+6.
Torque units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Pound-inches to Meganewton meters
Pound-inch and Meganewton 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 meganewton meter is 1000000 newton meter units.
Formula
meganewton meters = pound-inches × 1.129848e-7
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 meganewton meter equals 1000000 base units, so dividing one by the other gives the direct pound-inch-to-meganewton meter factor of 1.129848e-7.
Simple example
1 lb in × 1.129848e-7 = 1.129848e-7 MN m
1 pound-inch = 1.129848e-7 meganewton meters.
Real-world example
100 lb in × 1.129848e-7 = 0.0000112985 MN m
100 pound-inches = 0.0000112985 meganewton meters.
Conversion table
| Pound-inch (lb in) | Meganewton meter (MN m) |
|---|---|
| 1 lb in | 1.129848e-7 MN m |
| 10 lb in | 0.0000011298 MN m |
| 50 lb in | 0.0000056492 MN m |
| 100 lb in | 0.0000112985 MN m |
| 500 lb in | 0.0000564924 MN m |
| 1,000 lb in | 0.0001129848 MN m |
Reverse conversion: Meganewton meter to Pound-inch
1.129848e-7 MN m × 8850745.791 = 0.9999997431 lb in
1.129848e-7 meganewton meters = 0.9999997431 pound-inches.
pound-inches = meganewton meters × 8850745.79133
For a page dedicated to this direction, see Meganewton meter to Pound-inch.
Understanding the Pound-inch (lb in)
Torque from one pound-force at one inch.
Understanding the Meganewton meter (MN m)
Meganewton meter is 1000000 newton meter units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many meganewton meters are in 1 pound-inch?
1 pound-inch equals 1.129848e-7 meganewton meters, using the exact defined conversion factor rather than an estimate.
How do I convert pound-inch to meganewton meter?
Multiply the pound-inch value by 1.129848e-7. The converter above does this instantly to whatever precision you set.
How do I convert meganewton meter back to pound-inch?
Use the reverse factor: 1 meganewton meter equals 8,850,745.791 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 meganewton meter?
Meganewton meter (MN m) is a unit of engineering.
Is the pound-inch to meganewton meter conversion exact?
Yes. Both pound-inch and meganewton meter are defined by fixed standards rather than physical artifacts, so the factor of 1.129848e-7 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.