Pounds-force to kilonewtons
Type a value in pounds-force to see it in kilonewtons straight away, or type in the second box to convert back.
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How to use it
- Type the value in the pounds-force box.
- Read the result in kilonewtons as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
kN = lbf × 0.004448221615
Multiply the value in pounds-force by 0.004448221615 to get kilonewtons.
Example
To convert 25 lbf to kilonewtons: 25 × 0.004448221615 = 0.111206 kN.
Conversion table
| Pounds-force (lbf) | Kilonewtons (kN) |
|---|---|
| 1 | 0.00444822 |
| 2 | 0.00889644 |
| 3 | 0.0133447 |
| 5 | 0.0222411 |
| 10 | 0.0444822 |
| 20 | 0.0889644 |
| 25 | 0.111206 |
| 50 | 0.222411 |
| 100 | 0.444822 |
| 250 | 1.11206 |
| 500 | 2.22411 |
| 1,000 | 4.44822 |
About the units
- Pound-force
- The weight of one pound (0.45359237 kg) under standard gravity, exactly 4.4482216152605 newtons.
- Kilonewton
- Exactly 1000 newtons, the usual unit for structural loads, anchor ratings and climbing gear.
Limits and caveats
- Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
- Both unit factors are exact by their official definitions.
Questions about this tool
How many kilonewtons are in one pound-force?
1 lbf = 0.00444822 kN exactly.
How do I convert pounds-force to kilonewtons?
Use kN = lbf × 0.004448221615. For example, 25 lbf = 0.111206 kN.
How many pounds-force are in one kilonewton?
1 kN = 224.809 lbf.
What is the difference between a kilogram and a kilogram-force?
The kilogram is a unit of mass, while the kilogram-force is the weight of that mass under standard gravity, exactly 9.80665 newtons. So a 10 kg object presses down with about 98.07 newtons.
Why are climbing ropes and anchors rated in kilonewtons?
The kilonewton is a standard force unit that suits large loads. As a quick estimate, 1 kN is about 102 kilograms-force.