Pound-force foot to Kilogram-force meter Converter
Enter the value that you want to convert pound-force foot (lbf*ft) to kilogram-force meter (kgf*m) or kilogram-force meter to pound-force foot.Also written as LBF*FT to KGF*M conversion.
1 pound-force foot = 0.1382549 kilogram-force meter
Formula: kilogram-force meter = pound-force foot value × 0.1382549
LBF*FT to KGF*M — pound-force foot to kilogram-force meter
10 pound-force foot = 1.38255 kilogram-force meter
Popular Torque Converters:
Converting Pound-force foot to Kilogram-force meter
About the Pound-force foot
Pound-force foot (lbf*ft) is a unit of torque measurement. 1 pound-force foot is equal to 0.1382549 kilogram-force meter.
The Kilogram-force meter in Engineering
Kilogram-force meter (kgf*m) is a unit of torque measurement. 1 kilogram-force meter is equal to 7.2330141 pound-force foot.
Torque Units in Mechanical Engineering
Torque appears in newton-meters (SI), pound-force feet (US automotive), kilogram-force meters (some Asian specifications), and ounce-force inches (small fasteners). Every bolt torque specification, engine output curve, and electric motor datasheet requires understanding the correct unit. Cross-referencing between American and European automotive repair manuals is a daily conversion task for mechanics.
pound-force foot to kilogram-force meter metric conversion table
| 0.01 lbf*ft | = | 0.00138 kgf*m |
| 0.1 lbf*ft | = | 0.01383 kgf*m |
| 1 lbf*ft | = | 0.13825 kgf*m |
| 2 lbf*ft | = | 0.27651 kgf*m |
| 3 lbf*ft | = | 0.41476 kgf*m |
| 4 lbf*ft | = | 0.55302 kgf*m |
| 5 lbf*ft | = | 0.69127 kgf*m |
| 6 lbf*ft | = | 0.82953 kgf*m |
| 7 lbf*ft | = | 0.96778 kgf*m |
| 8 lbf*ft | = | 1.10604 kgf*m |
| 9 lbf*ft | = | 1.24429 kgf*m |
| 10 lbf*ft | = | 1.38255 kgf*m |
| 11 lbf*ft | = | 1.52080 kgf*m |
| 12 lbf*ft | = | 1.65906 kgf*m |
| 13 lbf*ft | = | 1.79731 kgf*m |
| 14 lbf*ft | = | 1.93557 kgf*m |
| 15 lbf*ft | = | 2.07382 kgf*m |
| 16 lbf*ft | = | 2.21208 kgf*m |
| 17 lbf*ft | = | 2.35033 kgf*m |
| 18 lbf*ft | = | 2.48859 kgf*m |
| 19 lbf*ft | = | 2.62684 kgf*m |
| 20 lbf*ft | = | 2.76510 kgf*m |
| 30 lbf*ft | = | 4.14765 kgf*m |
| 40 lbf*ft | = | 5.53020 kgf*m |
| 50 lbf*ft | = | 6.91275 kgf*m |
| 60 lbf*ft | = | 8.29530 kgf*m |
| 70 lbf*ft | = | 9.67785 kgf*m |
| 80 lbf*ft | = | 11.06040 kgf*m |
| 90 lbf*ft | = | 12.44295 kgf*m |
| 100 lbf*ft | = | 13.82549 kgf*m |
| 200 lbf*ft | = | 27.65099 kgf*m |
| 300 lbf*ft | = | 41.47648 kgf*m |
| 400 lbf*ft | = | 55.30198 kgf*m |
| 500 lbf*ft | = | 69.12747 kgf*m |
| 600 lbf*ft | = | 82.95297 kgf*m |
| 700 lbf*ft | = | 96.77846 kgf*m |
| 800 lbf*ft | = | 110.60396 kgf*m |
| 900 lbf*ft | = | 124.42945 kgf*m |
| 1000 lbf*ft | = | 138.25495 kgf*m |
How to Convert LBF*FT to KGF*M (Pound-force foot to Kilogram-force meter)?
We can convert pound-force foot to kilogram-force meter by using an example.
Example:
Convert 20 Pound-force foot to Kilogram-force meter?
We know 1 Pound-force foot = 0.1382549 kilogram-force meter; 1 Kilogram-force meter = 7.2330141 pound-force foot.
20 pound-force foot = ___kgf*m
20 × 0.1382549 = 2.76510 kgf*m (we know 1 pound-force foot = 0.1382549 kilogram-force meter)
Answer:
20 pound-force foot = 2.76510 kilogram-force meter
Foot-Pounds to Kilogram-Force Meters: Cross-System Torque Translation
Converting foot-pounds to kilogram-force meters bridges American imperial torque specifications with the older metric gravitational system. Since 1 ft·lb = 0.13826 kgf·m, this conversion appears when working with vintage European or Asian equipment that uses kgf·m alongside American-spec torque requirements.
- Take the torque value in ft·lb.
- Multiply by 0.13826.
- The result is the torque in kgf·m.
- Example: 50 ft·lb × 0.13826 = 6.91 kgf·m.
ft·lb to kgf·m Conversion Values
Common American torque specs converted to the kgf·m system:
| Pound-force foot | Kilogram-force meter |
|---|---|
| 7.2 ft·lb | 1.0 kgf·m |
| 14.5 ft·lb | 2.0 kgf·m |
| 36 ft·lb | 5.0 kgf·m |
| 72 ft·lb | 10.0 kgf·m |
| 100 ft·lb | 13.8 kgf·m |
| 200 ft·lb | 27.7 kgf·m |
| 350 ft·lb | 48.4 kgf·m |
| 500 ft·lb | 69.1 kgf·m |
Examples: ft·lb to kgf·m
Question 1: A US motorcycle manual says 65 ft·lb for the rear axle nut. The old Japanese manual uses kgf·m. Convert.
Solution:
kgf·m = ft·lb × 0.13826
= 65 × 0.13826
= 8.99 kgf·m
Answer: 65 ft·lb = 8.99 kgf·m ≈ 9.0 kgf·m — matching the Japanese spec.
Question 2: A head bolt specification is 45 ft·lb. Express in kgf·m.
Solution:
kgf·m = ft·lb × 0.13826
= 45 × 0.13826
= 6.22 kgf·m
Answer: 45 ft·lb = 6.22 kgf·m for the cylinder head bolts.
Question 3: A flywheel bolt requires 90 ft·lb. Convert to kgf·m.
Solution:
kgf·m = ft·lb × 0.13826
= 90 × 0.13826
= 12.44 kgf·m
Answer: 90 ft·lb = 12.44 kgf·m — the flywheel bolt in legacy metric notation.
Practice: ft·lb to kgf·m
Try solving these on your own to test your understanding:
- Convert 25 ft·lb to kgf·m. (Answer: 3.46 kgf·m)
- An engine makes 300 ft·lb. Express in kgf·m. (Answer: 41.5 kgf·m)
- Convert 15 ft·lb to kgf·m. (Answer: 2.07 kgf·m)
- A prop bolt needs 110 ft·lb. What is this in kgf·m? (Answer: 15.2 kgf·m)
- Convert 55 ft·lb to kgf·m. (Answer: 7.60 kgf·m)
Three Torque Systems in One Workshop
A mechanic working on a 1980s Japanese motorcycle might encounter three torque systems in one job: the US aftermarket parts list uses ft·lb, the original factory manual uses kgf·m, and modern replacement parts list N·m. The conversion chain is: ft·lb × 1.3558 = N·m, and N·m × 0.10197 = kgf·m, or directly: ft·lb × 0.13826 = kgf·m. Having a conversion chart taped to the toolbox saves constant calculator use.
Historical Context: When kgf·m Was the Metric Torque Standard
Before the worldwide SI standardization push of the 1970s-1990s, most metric-system countries used kgf·m (or equivalently, kp·m in German notation — kilopond-meters). Japanese automakers published all service manuals in kgf·m through the 1990s. The shift to N·m was gradual: Honda, Toyota, and Yamaha began dual-labeling in the late 1980s and fully transitioned by 2000.
Key Takeaways
- 1 ft·lb = 0.13826 kgf·m (multiply ft·lb by 0.13826).
- Quick estimate: divide ft·lb by 7.2 to get approximate kgf·m.
- kgf·m was standard in Japanese/European manuals before the 1990s.
- The conversion chain: ft·lb → N·m → kgf·m avoids confusion.
- 7.2 ft·lb ≈ 1 kgf·m is a useful benchmark to remember.
Pound-force foot to Kilogram-force meter Conversion Formula
kilogram-force meter = pound-force foot × 0.1382549
1 pound-force foot = 0.1382549 kilogram-force meter
1 kilogram-force meter = 7.2330141 pound-force foot
Reverse: pound-force foot = kilogram-force meter × 7.2330141
Frequently Asked Questions
How many kilogram-force meter are in 1 pound-force foot?
There are 0.1382549 kilogram-force meter in 1 pound-force foot. To convert pound-force foot to kilogram-force meter, multiply the value by 0.1382549.
How do I convert pound-force foot to kilogram-force meter?
Multiply your pound-force foot value by 0.1382549 to get the equivalent in kilogram-force meter. For example, 5 pound-force foot = 5 × 0.1382549 = 0.69127 kilogram-force meter.
How do I convert kilogram-force meter to pound-force foot?
Multiply your kilogram-force meter value by 7.2330141 to get the equivalent in pound-force foot. Alternatively, divide by 0.1382549.
What is 10 pound-force foot in kilogram-force meter?
10 pound-force foot is equal to 1.38255 kilogram-force meter.
What is 100 pound-force foot in kilogram-force meter?
100 pound-force foot is equal to 13.82549 kilogram-force meter.