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Lbf to kN Converter (Pounds-Force to Kilonewtons)

1 pound-force = 0.004448221615 kilonewtons. To convert lbf to kN, multiply by 0.004448221615, or divide by 224.8089431.

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100 lbf = 0.4448 kN

1 lbf
0.004448 kN
1 kN
224.8089 lbf
10 lbf
0.04448 kN
100 lbf
0.4448 kN

How to convert lbf to kN

1 pound-force equals 0.004448221615 kilonewtons, so the conversion is a single multiplication.

kN = lbf × 0.004448221615

Example: 150 lbf × 0.004448221615 = 0.6672 kN.

About the pound-force and the kilonewton

Pound-Force (lbf)

A pound-force is the weight of one pound mass under standard gravity, about 4.448 newtons.

Kilonewton (kN)

A knot is one nautical mile per hour, used in aviation, shipping and weather reports.

1 pound-force in every force unit

Newtons4.448 N
Kilograms-Force0.4536 kgf
Kilonewtons0.004448 kN
Dynes444,822.162 dyn
Ounces-Force16 ozf
Kips0.001 kip
Tons-Force (US)0.0005 tonf

lbf to kN FAQ

How many kilonewtons are in a pound-force?

1 pound-force = 0.004448221615 kilonewtons.

How many pounds-force are in a kilonewton?

1 kilonewton = 224.8089431 pounds-force.

How do I convert lbf to kN?

Use kN = lbf × 0.004448221615. For example, 10 lbf = 0.04448 kN.

Can I print this lbf to kN chart?

Yes. Use "Print / Save PDF" next to the converter for a one-page chart, or "Download CSV" to open it in Excel or Google Sheets.