How to convert newtons to pounds-force
Multiply the value in newtons by 0.2248. A European datasheet counts in newtons or kilonewtons, its American equivalent in pounds-force, and moving between them changes the unit, never the force itself.
N = lbf × 4.4482
Everyday forces in newtons and in pounds-force
| 1 N (an apple) | 0.22 lbf |
| 5 N | 1.12 lbf |
| 10 N | 2.25 lbf |
| 20 N | 4.50 lbf |
| 50 N | 11.24 lbf |
| 100 N | 22.48 lbf |
| 200 N | 44.96 lbf |
| 500 N | 112.40 lbf |
| 1,000 N | 224.81 lbf |
| 5,000 N | 1,124.04 lbf |
| 20,000 N (carabiner) | 4,496.18 lbf |
Show every value
- 1 N = 0.2248 lbf
- 2 N = 0.4496 lbf
- 3 N = 0.6744 lbf
- 4 N = 0.8992 lbf
- 5 N = 1.124 lbf
- 6 N = 1.3489 lbf
- 7 N = 1.5737 lbf
- 8 N = 1.7985 lbf
- 9 N = 2.0233 lbf
- 10 N = 2.2481 lbf
- 11 N = 2.4729 lbf
- 12 N = 2.6977 lbf
- 13 N = 2.9225 lbf
- 14 N = 3.1473 lbf
- 15 N = 3.3721 lbf
- 16 N = 3.5969 lbf
- 17 N = 3.8218 lbf
- 18 N = 4.0466 lbf
- 19 N = 4.2714 lbf
- 20 N = 4.4962 lbf
- 21 N = 4.721 lbf
- 22 N = 4.9458 lbf
- 23 N = 5.1706 lbf
- 24 N = 5.3954 lbf
- 25 N = 5.6202 lbf
- 26 N = 5.845 lbf
- 27 N = 6.0698 lbf
- 28 N = 6.2947 lbf
- 29 N = 6.5195 lbf
- 30 N = 6.7443 lbf
- 31 N = 6.9691 lbf
- 32 N = 7.1939 lbf
- 33 N = 7.4187 lbf
- 34 N = 7.6435 lbf
- 35 N = 7.8683 lbf
- 36 N = 8.0931 lbf
- 37 N = 8.3179 lbf
- 38 N = 8.5427 lbf
- 39 N = 8.7675 lbf
- 40 N = 8.9924 lbf
- 41 N = 9.2172 lbf
- 42 N = 9.442 lbf
- 43 N = 9.6668 lbf
- 44 N = 9.8916 lbf
- 45 N = 10.1164 lbf
- 46 N = 10.3412 lbf
- 47 N = 10.566 lbf
- 48 N = 10.7908 lbf
- 49 N = 11.0156 lbf
- 50 N = 11.2404 lbf
- 51 N = 11.4653 lbf
- 52 N = 11.6901 lbf
- 53 N = 11.9149 lbf
- 54 N = 12.1397 lbf
- 55 N = 12.3645 lbf
- 56 N = 12.5893 lbf
- 57 N = 12.8141 lbf
- 58 N = 13.0389 lbf
- 59 N = 13.2637 lbf
- 60 N = 13.4885 lbf
- 61 N = 13.7133 lbf
- 62 N = 13.9382 lbf
- 63 N = 14.163 lbf
- 64 N = 14.3878 lbf
- 65 N = 14.6126 lbf
- 66 N = 14.8374 lbf
- 67 N = 15.0622 lbf
- 68 N = 15.287 lbf
- 69 N = 15.5118 lbf
- 70 N = 15.7366 lbf
- 71 N = 15.9614 lbf
- 72 N = 16.1862 lbf
- 73 N = 16.4111 lbf
- 74 N = 16.6359 lbf
- 75 N = 16.8607 lbf
- 76 N = 17.0855 lbf
- 77 N = 17.3103 lbf
- 78 N = 17.5351 lbf
- 79 N = 17.7599 lbf
- 80 N = 17.9847 lbf
- 81 N = 18.2095 lbf
- 82 N = 18.4343 lbf
- 83 N = 18.6591 lbf
- 84 N = 18.884 lbf
- 85 N = 19.1088 lbf
- 86 N = 19.3336 lbf
- 87 N = 19.5584 lbf
- 88 N = 19.7832 lbf
- 89 N = 20.008 lbf
- 90 N = 20.2328 lbf
- 91 N = 20.4576 lbf
- 92 N = 20.6824 lbf
- 93 N = 20.9072 lbf
- 94 N = 21.132 lbf
- 95 N = 21.3568 lbf
- 96 N = 21.5817 lbf
- 97 N = 21.8065 lbf
- 98 N = 22.0313 lbf
- 99 N = 22.2561 lbf
- 100 N = 22.4809 lbf
- 125 N = 28.1011 lbf
- 150 N = 33.7213 lbf
- 175 N = 39.3416 lbf
- 200 N = 44.9618 lbf
- 225 N = 50.582 lbf
- 250 N = 56.2022 lbf
- 275 N = 61.8225 lbf
- 300 N = 67.4427 lbf
- 325 N = 73.0629 lbf
- 350 N = 78.6831 lbf
- 375 N = 84.3034 lbf
- 400 N = 89.9236 lbf
- 425 N = 95.5438 lbf
- 450 N = 101.164 lbf
- 475 N = 106.7842 lbf
- 500 N = 112.4045 lbf
- 550 N = 123.6449 lbf
- 600 N = 134.8854 lbf
- 650 N = 146.1258 lbf
- 700 N = 157.3663 lbf
- 750 N = 168.6067 lbf
- 800 N = 179.8472 lbf
- 850 N = 191.0876 lbf
- 900 N = 202.328 lbf
- 950 N = 213.5685 lbf
- 1,000 N = 224.8089 lbf
- 1,500 N = 337.2134 lbf
- 2,000 N = 449.6179 lbf
- 2,500 N = 562.0224 lbf
- 3,000 N = 674.4268 lbf
- 3,500 N = 786.8313 lbf
- 4,000 N = 899.2358 lbf
- 4,500 N = 1,011.6402 lbf
- 5,000 N = 1,124.0447 lbf
- 5,500 N = 1,236.4492 lbf
- 6,000 N = 1,348.8537 lbf
- 6,500 N = 1,461.2581 lbf
- 7,000 N = 1,573.6626 lbf
- 7,500 N = 1,686.0671 lbf
- 8,000 N = 1,798.4715 lbf
- 8,500 N = 1,910.876 lbf
- 9,000 N = 2,023.2805 lbf
- 9,500 N = 2,135.685 lbf
- 10,000 N = 2,248.0894 lbf
One pound-force is exactly 4.4482216152605 newtons: the pound is exactly 0.45359237 kilogram and standard gravity is exactly 9.80665 metres per second squared, both fixed by convention rather than measured. The reverse factor, 0.2248089431, follows by division. Methodology & sources.
Frequently asked questions
How heavy is one newton?
About as heavy as an apple. One newton is the force a mass of 101.97 grams exerts under Earth's gravity, which is 0.2248 pound-force, slightly under a quarter of a pound. The unit is small, which is why datasheets move to kilonewtons quickly: 1 kN is 224.8 lbf, the weight of roughly 102 kilograms.
What does 24 kN stamped on a carabiner mean?
A breaking strength, never a working load. Standard EN 12275 requires three ratings on a climbing connector, major axis with the gate closed, major axis with the gate open and minor axis, with a floor of 20 kN on the major axis and 7 kN on the other two. The 24 kN of a common model is 5,395 pounds-force, close to 2.4 tonnes-force, but that is the load at which the metal fails.
Why is jet thrust quoted in pounds?
Because the American aerospace industry never switched units and engine makers sell worldwide from one datasheet. An Airbus A320 engine rated at 27,000 pounds of thrust delivers 120 kilonewtons; the Saturn V F-1 engine, 1,522,000 pounds, delivers 6.77 meganewtons. European certification paperwork counts in kilonewtons instead.
How much force is a 40 pound bow?
178 newtons, but only at the reference draw. Bow draw weight is measured in pounds-force and quoted by convention at a 28 inch draw length, that is 71.1 centimetres: an archer with long arms pulls more than the label says, a shorter archer pulls less. The same rule applies to crossbows, whose draw weight runs into the hundreds of pounds.
How much force does opening a door take?
Five pounds-force at most for an interior door in the United States, that is 22.2 newtons, the limit set by the ADA accessibility rules. British guidance lands on almost the same threshold by another route, 30 newtons over the first thirty degrees of the swing and 22.5 newtons after that. Two unit systems, one gesture.