Pounds-force to Newtons Converter lbf → N
1 pound-force (lbf) = 4.448221615 newtons (N). Type a value below — the conversion happens instantly, entirely on your device.
1 lbf = 4.448221615 N
10 pounds-force = 44.482216 newtons
10 × 4.44822 = 44.482216
1 lbf equals 4.44822 N, so multiplying by 4.44822 converts the value. The result describes the exact same quantity — only the measuring stick changes.
How to convert pounds-force to newtons
newtons = pounds-force × 4.448221615 — multiply the pound-force value by 4.44822.
Example: 10 lbf = 44.4822 N.
To convert the other way: pounds-force = newtons ÷ 4.448221615 — or use the dedicated N to lbf converter .
Pound-force to newtons multiplies by about 4.4482: 10 lbf is 44.48 N. Rocket and jet thrust quoted in "pounds" (lbf) converts to newtons this way — a 100 lbf actuator pushes with about 445 N.
Pounds-force to Newtons conversion table
| Pounds-force (lbf) | Newtons (N) |
|---|---|
| 1 | 4.4482216 |
| 5 | 22.241108 |
| 10 | 44.482216 |
| 25 | 111.20554 |
| 50 | 222.41108 |
| 100 | 444.82216 |
| 250 | 1112.0554 |
| 500 | 2224.1108 |
| 1000 | 4448.2216 |
About the units
What is a pound-force?
The force of gravity on one pound of mass — about 4.4482 N. US engineering and thrust figures use pound-force (often just "pounds").
What is a newton?
The SI unit of force — the force that accelerates one kilogram at one metre per second squared. A small apple weighs about 1 N.
Frequently asked questions
How many newtons are in 1 pound-force?
1 pound-force (lbf) = 4.448221615 newtons (N).
What is the formula to convert pounds-force to newtons?
newtons = pounds-force × 4.448221615 — multiply the pound-force value by 4.44822.
How do I convert lbf to N without a calculator?
Multiply by 4.45 for a close estimate. Exact factor: 1 lbf = 4.448221615 N.
Is this lbf-to-N converter accurate and private?
Yes. It uses the exact internationally defined conversion factors and computes results locally in your browser — your input is never sent to a server, and the page keeps working offline.