Femtonewton meter is 1e-15 newton meter units.
Femtonewton meters to Kilogram-force meters Converter — fN m to kgf m
Convert Femtonewton meter (fN m) to Kilogram-force meter (kgf m) using the exact conversion factor (1 femtonewton meter = 1.019716e-16 kilogram-force meter). See the formula, worked examples, conversion table, and common uses.
Femtonewton meters to Kilogram-force 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.
Torque from one kilogram-force at one meter.
Result = input x 1e-15 / 9.80665.
Torque uses the newton meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Femtonewton meters to Kilogram-force meters
Femtonewton meter and Kilogram-force 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: Femtonewton meter is 1e-15 newton meter units, and torque from one kilogram-force at one meter.
Formula
kilogram-force meters = femtonewton meters × 1.019716e-16
This factor comes from each unit's defined relationship to the category's base unit: 1 femtonewton meter equals 1e-15 base units, and 1 kilogram-force meter equals 9.80665 base units, so dividing one by the other gives the direct femtonewton meter-to-kilogram-force meter factor of 1.019716e-16.
Simple example
1 fN m × 1.019716e-16 = 1.019716e-16 kgf m
1 femtonewton meter = 1.019716e-16 kilogram-force meters.
Real-world example
10 fN m × 1.019716e-16 = 1.019716e-15 kgf m
10 femtonewton meters = 1.019716e-15 kilogram-force meters.
Conversion table
| Femtonewton meter (fN m) | Kilogram-force meter (kgf m) |
|---|---|
| 1 fN m | 1.019716e-16 kgf m |
| 5 fN m | 5.098581e-16 kgf m |
| 10 fN m | 1.019716e-15 kgf m |
| 50 fN m | 5.098581e-15 kgf m |
| 100 fN m | 1.019716e-14 kgf m |
| 500 fN m | 5.098581e-14 kgf m |
Reverse conversion: Kilogram-force meter to Femtonewton meter
1.019716e-16 kgf m × 9.80665e+15 = 0.9999997911 fN m
1.019716e-16 kilogram-force meters = 0.9999997911 femtonewton meters.
femtonewton meters = kilogram-force meters × 9.80665e+15
For a page dedicated to this direction, see Kilogram-force meter to Femtonewton meter.
Understanding the Femtonewton meter (fN m)
Femtonewton meter is 1e-15 newton meter units.
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
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 kilogram-force meters are in 1 femtonewton meter?
1 femtonewton meter equals 1.019716e-16 kilogram-force meters, using the exact defined conversion factor rather than an estimate.
How do I convert femtonewton meter to kilogram-force meter?
Multiply the femtonewton meter value by 1.019716e-16. The converter above does this instantly to whatever precision you set.
How do I convert kilogram-force meter back to femtonewton meter?
Use the reverse factor: 1 kilogram-force meter equals 9.80665e+15 femtonewton meters. You can also use the swap control in the converter above to flip the direction instantly.
What is a femtonewton meter?
Femtonewton meter (fN m) is a unit of torque.
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.
Is the femtonewton meter to kilogram-force meter conversion exact?
Yes. Both femtonewton meter and kilogram-force meter are defined by fixed standards rather than physical artifacts, so the factor of 1.019716e-16 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.