Torque from one kilogram-force at one meter.
Kilogram-force meters to Rontonewton meters Converter — kgf m to rN m
Convert Kilogram-force meter (kgf m) to Rontonewton meter (rN m) using the exact conversion factor (1 kilogram-force meter = 9.80665e+27 rontonewton meter). See the formula, worked examples, conversion table, and common uses.
Kilogram-force meters to Rontonewton 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.
Rontonewton meter is 1e-27 newton meter units.
Result = input x 9.80665 / 1e-27.
Torque units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Kilogram-force meters to Rontonewton meters
Kilogram-force meter and Rontonewton 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. Kilogram-force meter is most often used for appears on some legacy torque specifications and equipment predating wider adoption of the newton-meter.
Formula
rontonewton meters = kilogram-force meters × 9.80665e+27
This factor comes from each unit's defined relationship to the category's base unit: 1 kilogram-force meter equals 9.80665 base units, and 1 rontonewton meter equals 1e-27 base units, so dividing one by the other gives the direct kilogram-force meter-to-rontonewton meter factor of 9.80665e+27.
Simple example
1 kgf m × 9.80665e+27 = 9.80665e+27 rN m
1 kilogram-force meter = 9.80665e+27 rontonewton meters.
Real-world example
100 kgf m × 9.80665e+27 = 9.80665e+29 rN m
100 kilogram-force meters = 9.80665e+29 rontonewton meters.
Conversion table
| Kilogram-force meter (kgf m) | Rontonewton meter (rN m) |
|---|---|
| 1 kgf m | 9.80665e+27 rN m |
| 10 kgf m | 9.80665e+28 rN m |
| 50 kgf m | 4.903325e+29 rN m |
| 100 kgf m | 9.80665e+29 rN m |
| 500 kgf m | 4.903325e+30 rN m |
| 1,000 kgf m | 9.80665e+30 rN m |
Reverse conversion: Rontonewton meter to Kilogram-force meter
9.80665e+27 rN m × 1.019716e-28 = 1 kgf m
9.80665e+27 rontonewton meters = 1 kilogram-force meters.
kilogram-force meters = rontonewton meters × 1.019716e-28
For a page dedicated to this direction, see Rontonewton meter to Kilogram-force meter.
Understanding the Kilogram-force meter
Kilogram-force meter (kgf m) measures torque. The torque produced by one kilogram-force acting at a perpendicular distance of one meter. It is classified as a non-SI unit, deprecated but still encountered.
Where it's used: Can be encountered in some older European and Japanese automotive and mechanical torque specifications
kgf·m vs. N·m. The newton-meter is the modern SI torque unit; kilogram-force meter is the older, gravity-dependent equivalent still occasionally seen on legacy specifications. 1 kgf·m equals exactly 9.80665 N·m.
Uses of the Kilogram-force meter today
- Appears on some legacy torque specifications and equipment predating wider adoption of the newton-meter
Understanding the Rontonewton meter (rN m)
Rontonewton meter is 1e-27 newton meter units.
Kilogram-force meter — sources
- BIPM SI Brochure — Kilogram-force and its derivatives are non-SI units whose use is discouraged in favor of SI force/torque units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many rontonewton meters are in 1 kilogram-force meter?
1 kilogram-force meter equals 9.80665e+27 rontonewton meters, using the exact defined conversion factor rather than an estimate.
How do I convert kilogram-force meter to rontonewton meter?
Multiply the kilogram-force meter value by 9.80665e+27. The converter above does this instantly to whatever precision you set.
How do I convert rontonewton meter back to kilogram-force meter?
Use the reverse factor: 1 rontonewton meter equals 1.019716e-28 kilogram-force meters. You can also use the swap control in the converter above to flip the direction instantly.
What is a kilogram-force meter?
Kilogram-force meter (kgf m) measures torque. The torque produced by one kilogram-force acting at a perpendicular distance of one meter. It is classified as a non-SI unit, deprecated but still encountered.
What is a rontonewton meter?
Rontonewton meter (rN m) is a unit of engineering.
Is the kilogram-force meter to rontonewton meter conversion exact?
Yes. Both kilogram-force meter and rontonewton meter are defined by fixed standards rather than physical artifacts, so the factor of 9.80665e+27 used above is exact to as many digits as you choose to display.
What is the difference between kgf·m vs. n·m?
The newton-meter is the modern SI torque unit; kilogram-force meter is the older, gravity-dependent equivalent still occasionally seen on legacy specifications. 1 kgf·m equals exactly 9.80665 N·m.
Where is the kilogram-force meter still used today?
Can be encountered in some older European and Japanese automotive and mechanical torque specifications