Torque from one pound-force at one inch.
Pound-inches to Ronnanewton meters Converter — lb in to RN m
Convert Pound-inch (lb in) to Ronnanewton meter (RN m) using the exact conversion factor (1 pound-inch = 1.129848e-28 ronnanewton meter). See the formula, worked examples, and conversion table.
Pound-inches to Ronnanewton meters converter
Converter
Torque Converter
Convert newton meters, pound-feet, pound-inches, ounce-inches, and kilogram-force meters.
Context values
Some unit families need one extra value for a physically accurate result.
Ronnanewton meter is 1e+27 newton meter units.
Result = input x 0.112984829 / 1e+27.
Torque uses the newton meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pound-inches to Ronnanewton meters
Pound-inch and Ronnanewton meter both measure torque, and the conversion is essential for anyone using a torque wrench specified in one unit against a bolt or engine spec given in the other. Specifically: Torque from one pound-force at one inch, and ronnanewton meter is 1e+27 newton meter units.
Formula
ronnanewton meters = pound-inches × 1.129848e-28
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 ronnanewton meter equals 1e+27 base units, so dividing one by the other gives the direct pound-inch-to-ronnanewton meter factor of 1.129848e-28.
Simple example
1 lb in × 1.129848e-28 = 1.129848e-28 RN m
1 pound-inch = 1.129848e-28 ronnanewton meters.
Real-world example
10 lb in × 1.129848e-28 = 1.129848e-27 RN m
10 pound-inches = 1.129848e-27 ronnanewton meters.
Conversion table
| Pound-inch (lb in) | Ronnanewton meter (RN m) |
|---|---|
| 1 lb in | 1.129848e-28 RN m |
| 5 lb in | 5.649241e-28 RN m |
| 10 lb in | 1.129848e-27 RN m |
| 50 lb in | 5.649241e-27 RN m |
| 100 lb in | 1.129848e-26 RN m |
| 500 lb in | 5.649241e-26 RN m |
Reverse conversion: Ronnanewton meter to Pound-inch
1.129848e-28 RN m × 8.850746e+27 = 0.9999997431 lb in
1.129848e-28 ronnanewton meters = 0.9999997431 pound-inches.
pound-inches = ronnanewton meters × 8.850746e+27
For a page dedicated to this direction, see Ronnanewton meter to Pound-inch.
Understanding the Pound-inch (lb in)
Torque from one pound-force at one inch.
Understanding the Ronnanewton meter (RN m)
Ronnanewton meter is 1e+27 newton meter units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many ronnanewton meters are in 1 pound-inch?
1 pound-inch equals 1.129848e-28 ronnanewton meters, using the exact defined conversion factor rather than an estimate.
How do I convert pound-inch to ronnanewton meter?
Multiply the pound-inch value by 1.129848e-28. The converter above does this instantly to whatever precision you set.
How do I convert ronnanewton meter back to pound-inch?
Use the reverse factor: 1 ronnanewton meter equals 8.850746e+27 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 torque.
What is a ronnanewton meter?
Ronnanewton meter (RN m) is a unit of torque.
Is the pound-inch to ronnanewton meter conversion exact?
Yes. Both pound-inch and ronnanewton meter are defined by fixed standards rather than physical artifacts, so the factor of 1.129848e-28 used above is exact to as many digits as you choose to display.