Pounds-force to kilonewtons
Type a value in lbf to get it in kN instantly.
0.5338kN
That's 53× as much thrust as a model rocket motor, while a business-jet engine is 28× more. That is enough to hold up about 54.43 kg against gravity.
Convert the other way: kN to lbf
What it means
How much push is that?
Engine figures are typical published ratings; afterburning, altitude and throttle all change them. Rocket thrust is at sea level.
The math
How to convert lbf to kN
To convert pounds-force to kilonewtons, multiply by 0.00444822.
Example: 120 lbf × 0.00444822 = 0.533787 kN.
In the other direction, 1 kN = 224.809 lbf.
Thrust-to-weight below assumes Airliner, 70 t. Change it above and those figures update.
Every unit
Your thrust in every unit
Tables
lbf to kN conversion table
| lbf | kN |
|---|---|
| 1 lbf | 0.00444822 kN |
| 5 lbf | 0.0222411 kN |
| 10 lbf | 0.0444822 kN |
| 20 lbf | 0.0889644 kN |
| 50 lbf | 0.222411 kN |
| 100 lbf | 0.444822 kN |
| 120 lbf | 0.533787 kN |
| 200 lbf | 0.889644 kN |
| 500 lbf | 2.22411 kN |
| 1,000 lbf | 4.44822 kN |
| 2,000 lbf | 8.89644 kN |
| 7,500 lbf | 33.3617 kN |
kN to lbf conversion table
| kN | lbf |
|---|---|
| 1 kN | 224.809 lbf |
| 5 kN | 1,124.04 lbf |
| 10 kN | 2,248.09 lbf |
| 20 kN | 4,496.18 lbf |
| 50 kN | 11,240.4 lbf |
| 100 kN | 22,480.9 lbf |
| 120 kN | 26,977.1 lbf |
| 200 kN | 44,961.8 lbf |
| 500 kN | 112,404 lbf |
| 1,000 kN | 224,809 lbf |
| 2,000 kN | 449,618 lbf |
| 7,500 kN | 1,686,070 lbf |
Quick answers
Quick answers
- How many kN is 1 lbf?
- 1 lbf is 0.00444822 kN.
- How many kN is 10 lbf?
- 10 lbf is 0.0444822 kN.
- How many kN is 120 lbf?
- 120 lbf is 0.533787 kN.
The units
About these units
Pounds-force (lbf)
The US rating for jet engines.
Kilonewtons (kN)
How jet engines are rated outside the US.
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