Convert Newtons to Pounds-force
1 newton is 0.224809 lbf. One newton is exactly 0.2248089431 pounds-force.
One newton is 0.22480894 pounds-force. To convert newtons to pounds-force, multiply by 0.22480894; to go the other way, divide by 0.22480894 or multiply by 4.4482216. The factor is exact rather than rounded: it follows from NIST Special Publication 811. The SI unit: the force that accelerates one kilogram by one metre per second every second.
Factor checked against the defining standard · How we check
- Newtons × 0.22480894
value * 0.22480894310.225 lbf
1 newton in every force unit
| Unit | Value | Exact factor |
|---|---|---|
| newtons (as entered) | 1 N | — |
| kilonewtons | 0.001 kN | × 0.001 |
| pounds-force | 0.2248089431 lbf | × 0.2248089431 |
| kilograms-force | 0.1019716213 kgf | × 0.101971621298 |
| ounces-force | 3.59694309 ozf | × 3.5969430896 |
| dynes | 100,000 dyn | × 100,000 |
Factors are entered by hand from NIST Special Publication 811 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert newtons to pounds-force?
- 1.Take the measurement in newtons.
- 2.Multiply by 0.22480894 — that is how many pounds-force fit in one newton.
- 3.To go back the other way, divide by 0.22480894, or multiply by 4.4482216.
Worked example: 25 newtons to pounds-force
- Formula
- N × 0.22480894 = lbf
- Arithmetic
- 25 × 0.22480894 = 5.620224 lbf
- Answer
- 25 N = 5.620224 lbf
The factor is rounded for display; the figure above is computed from the full value.
Newtons to pounds-force conversion table
| Newtons | Pounds-force |
|---|---|
| 1 N | 0.224809 lbf |
| 2 N | 0.449618 lbf |
| 3 N | 0.674427 lbf |
| 4 N | 0.899236 lbf |
| 5 N | 1.124045 lbf |
| 6 N | 1.348854 lbf |
| 7 N | 1.573663 lbf |
| 8 N | 1.798472 lbf |
| 9 N | 2.02328 lbf |
| 10 N | 2.248089 lbf |
| 12 N | 2.697707 lbf |
| 15 N | 3.372134 lbf |
| 20 N | 4.496179 lbf |
| 25 N | 5.620224 lbf |
| 50 N | 11.240447 lbf |
| 100 N | 22.480894 lbf |
| 200 N | 44.961789 lbf |
| 300 N | 67.442683 lbf |
| 500 N | 112.404472 lbf |
| 1000 N | 224.808943 lbf |
| 2000 N | 449.617886 lbf |
| 5000 N | 1,124.044716 lbf |
| 10000 N | 2,248.089431 lbf |
What is a newton?
The SI unit: the force that accelerates one kilogram by one metre per second every second. Holding a small apple against gravity takes about one newton.
What is a pound-force?
The weight of one pound under standard gravity, exactly 4.4482216152605 newtons. A pound of mass and a pound-force are different quantities that share a name, which is why this unit exists at all.
How many pounds-force are in a newton?
One newton is 0.22480894 pounds-force. Going the other way, one pound-force is 4.4482216 newtons. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every force unit here
| Unit | Symbol | One of these is |
|---|---|---|
| Newtons | N | the base unit |
| Kilonewtons | kN | 1000 newton |
| Pounds-force | lbf | 4.4482216 newton |
| Kilograms-force | kgf | 9.80665 newton |
| Ounces-force | ozf | 0.27801385 newton |
| Dynes | dyn | 1.0000 × 10^-5 newton |
Source: NIST Special Publication 811 — pound-force is exactly 4.4482216152605 N
Questions people actually ask
- How many pounds-force are in a newton?
- 0.22480894. The weight of one pound under standard gravity, exactly 4.4482216152605 newtons. A pound of mass and a pound-force are different quantities that share a name, which is why this unit exists at all.
- How do I convert pounds-force back to newtons?
- Divide by 0.22480894, or multiply by 4.4482216 — they are the same operation.
Other force conversions
Pounds-force to newtons — the same conversion the other way.