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Lbf to Newtons Converter (Pounds-Force to Newtons)

1 pound-force = 4.448221615 newtons. To convert lbf to N, multiply by 4.448221615.

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100 lbf = 444.822 N

1 lbf
4.4482 N
1 N
0.2248 lbf
10 lbf
44.4822 N
100 lbf
444.8222 N

How to convert lbf to Newtons

1 pound-force equals 4.448221615 newtons, so the conversion is a single multiplication.

N = lbf × 4.448221615

Example: 150 lbf × 4.448221615 = 667.233 N.

About the pound-force and the newton

Pound-Force (lbf)

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

Newton (N)

A newton is the force that accelerates 1 kg by 1 m/s². It's named after Isaac Newton.

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
Newtons to lbfReverse conversionkgf to Newtons1 kgf = 9.8067 NNewtons to kgf1 N = 0.102 kgfkN to lbf1 kN = 224.8089 lbflbf to kN1 lbf = 0.004448 kN

lbf to Newtons FAQ

How many newtons are in a pound-force?

1 pound-force = 4.448221615 newtons.

How many pounds-force are in a newton?

1 newton = 0.2248089431 pounds-force.

How do I convert lbf to N?

Use N = lbf × 4.448221615. For example, 10 lbf = 44.482 N.

Can I print this lbf to Newtons 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.