Newton to Pound Force Conversion Calculator
Convert Newtons to Pound Force (N to lbf) or Pound Force to Newtons (lbf to N)
Enter either newton or pound force and get the equivalent value automatically
Formula to Convert Newton to Pound and Pound to Newton
How many Pound Force to Newtons? (lbf to N)
To convert pound force to newton, multiply pound force by 4.44822
N = lbf * 4.44822
For example, 120 pound force to N, is 120 * 4.44822 = 533.78639 N
How many Newtons to Pound Force? (N to lbf)
To convert newton to pound force, divide newton by 4.44822
lbf = newton / 4.44822
For example, 75 Newtons to pound force is 75 N / 4.44822 = 16.86067 lbf
What is Newton?
- Newton is the SI unit of Force.
- Force is defined as either a Push or a Pull acting on any object that can either displace it from its current position or distort it.
- The force acting on a body is equal to the mass of the body multiplied by the acceleration
Force = mass x acceleration
OR
F = ma - A Newtonian force is the force needed to accelerate a body of mass 1 kg by 1 m/s2
- The symbol for Newton force is 'N'
1 N = 1 kg m/s2 - The SI unit for Force is named after Sir Isaac Newton.
This equation of F = ma is Newton's second law of motion
What is Pound Force?
- Pound Force is the force required to accelerate a body of mass 1 lb by 32.174 ft/s2. Alternately, it can be stated as the weight of 1 Avoirdupois pound (lb) at standard gravity.
- The pound force is actually defined on the basis of gravitational force acting on a body on the surface of the Earth
- This gravitational force is equal to a constant value of 9.80665 m/s2 which in foot per second squared is equal to 32.174 ft/s2
- The symbol for Pound Force is lbf.
- Pound Force is part of the Imperial system of measurement.
What is the basis for Pound-Force to Newton conversion?
- Pound Force is based on gravitational force on a body.
- The gravitational force acting on a body of mass 1 kg on Earth is a constant value 9.80665 m/s2. This constant value is also called Standard Gravity.
- This is expressed in terms of kilogram force
1 kgf = 9.80665 Newtons - Since a kilogram is 2.20462 times a pound,
1 x (2.20462 lb)f = 9.80665 Newtons
1 lbf = 4.44822 Newtons
Is Pound Force and Pound Same?
- No, they are not identical. We have two entities namely Pound Mass and Pound Force.
Pound generally refers to mass and Pound Force to Force. - Pound Force is the gravitational force exerted on a body of mass 1 lb accelerating at 32.174 ft/s2 which is the Standard Gravitational constant (9.81 m/s2)
- Pound Mass is a measure of amount of matter in a body
- Pound Mass is represented as lb or lbm. Pound Force is represented as lbf.
- Pound (lb/lbm and lbf) are both part of the Imperial System of measurement and US Customary system.
- However, the term Pound has been used interchangeably for Mass or Force depending on the context. If it's lb or lbm, it's pound mass. if it's lbf it's Pound Force.
- A mass of 1 lb will experience a force of 32.174 due to Gravitational pull of the earth. Using F = m x a as the formula, we get F = 1 lb (mass) x 32.174 ft/s2.
This value of 1 lb with Gravitational constant of 32.174 ft/s2 is defined as an 'lbf'. - This means an object weighing 1 lb in earth will have a weight/force of 1 lbf.
Similarly, an object weighing 100lbs in earth will have a weight/force of 100 lbf.
However, the same object of mass 100 lbs will have a weight/force of 16.6 lbf as the gravitational force is 1/6th of the earth
Newtons to Pounds Conversion Table (N to lbf)
| Newton | Pound-Force | Kg m/s2 |
|---|---|---|
| 0.5 N | 0.1124 lbf | 0.5 kg m/s2 |
| 1 N | 0.2248 lbf | 1 kg m/s2 |
| 1.5 N | 0.3372 lbf | 1.5 kg m/s2 |
| 1.8 N | 0.40464 lbf | 1.8 kg m/s2 |
| 2 N | 0.4496 lbf | 2 kg m/s2 |
| 2.2 N | 0.49456 lbf | 2.2 kg m/s2 |
| 2.5 N | 0.562 lbf | 2.5 kg m/s2 |
| 3 N | 0.6744 lbf | 3 kg m/s2 |
| 3.5 N | 0.7868 lbf | 3.5 kg m/s2 |
| 3.6 N | 0.80928 lbf | 3.6 kg m/s2 |
| 4 N | 0.8992 lbf | 4 kg m/s2 |
| 4.5 N | 1.0116 lbf | 4.5 kg m/s2 |
| 5 N | 1.124 lbf | 5 kg m/s2 |
| 5.5 N | 1.2364 lbf | 5.5 kg m/s2 |
| 6 N | 1.3488 lbf | 6 kg m/s2 |
| 6.5 N | 1.4612 lbf | 6.5 kg m/s2 |
| 7 N | 1.5736 lbf | 7 kg m/s2 |
| 7.5 N | 1.686 lbf | 7.5 kg m/s2 |
| 8 N | 1.7984 lbf | 8 kg m/s2 |
| 9 N | 2.0232 lbf | 9 kg m/s2 |
| 10 N | 2.248 lbf | 10 kg m/s2 |
| 11 N | 2.4728 lbf | 11 kg m/s2 |
| 12 N | 2.6976 lbf | 12 kg m/s2 |
| 12.5 N | 2.81 lbf | 12.5 kg m/s2 |
| 13 N | 2.9224 lbf | 13 kg m/s2 |
| 14 N | 3.1472 lbf | 14 kg m/s2 |
| 15 N | 3.372 lbf | 15 kg m/s2 |
| 16 N | 3.5968 lbf | 16 kg m/s2 |
| 17 N | 3.8216 lbf | 17 kg m/s2 |
| 17.5 N | 3.934 lbf | 17.5 kg m/s2 |
| 18 N | 4.0464 lbf | 18 kg m/s2 |
| 19 N | 4.2712 lbf | 19 kg m/s2 |
| 20 N | 4.496 lbf | 20 kg m/s2 |
| 21 N | 4.7208 lbf | 21 kg m/s2 |
| 22 N | 4.9456 lbf | 22 kg m/s2 |
| 22.5 N | 5.058 lbf | 22.5 kg m/s2 |
| 23 N | 5.1704 lbf | 23 kg m/s2 |
| 24 N | 5.3952 lbf | 24 kg m/s2 |
| 25 N | 5.62 lbf | 25 kg m/s2 |
| 26 N | 5.8448 lbf | 26 kg m/s2 |
| 27 N | 6.0696 lbf | 27 kg m/s2 |
| 28 N | 6.2944 lbf | 28 kg m/s2 |
| 29 N | 6.5192 lbf | 29 kg m/s2 |
| 30 N | 6.744 lbf | 30 kg m/s2 |
| 31 N | 6.9688 lbf | 31 kg m/s2 |
| 32 N | 7.1936 lbf | 32 kg m/s2 |
| 33 N | 7.4184 lbf | 33 kg m/s2 |
| 35 N | 7.868 lbf | 35 kg m/s2 |
| 36 N | 8.0928 lbf | 36 kg m/s2 |
| 37 N | 8.3176 lbf | 37 kg m/s2 |
| 38 N | 8.5424 lbf | 38 kg m/s2 |
| 39 N | 8.7672 lbf | 39 kg m/s2 |
| 40 N | 8.992 lbf | 40 kg m/s2 |
| 41 N | 9.2168 lbf | 41 kg m/s2 |
| 42 N | 9.4416 lbf | 42 kg m/s2 |
| 43 N | 9.6664 lbf | 43 kg m/s2 |
| 44 N | 9.8912 lbf | 44 kg m/s2 |
| 45 N | 10.116 lbf | 45 kg m/s2 |
| 46 N | 10.3408 lbf | 46 kg m/s2 |
| 47 N | 10.5656 lbf | 47 kg m/s2 |
| 48 N | 10.7904 lbf | 48 kg m/s2 |
| 49 N | 11.0152 lbf | 49 kg m/s2 |
| 50 N | 11.24 lbf | 50 kg m/s2 |
| 51 N | 11.4648 lbf | 51 kg m/s2 |
| 52 N | 11.6896 lbf | 52 kg m/s2 |
| 53 N | 11.9144 lbf | 53 kg m/s2 |
| 54 N | 12.1392 lbf | 54 kg m/s2 |
| 55 N | 12.364 lbf | 55 kg m/s2 |
| 56 N | 12.5888 lbf | 56 kg m/s2 |
| 57 N | 12.8136 lbf | 57 kg m/s2 |
| 58 N | 13.0384 lbf | 58 kg m/s2 |
| 59 N | 13.2632 lbf | 59 kg m/s2 |
| 60 N | 13.488 lbf | 60 kg m/s2 |
| 61 N | 13.7128 lbf | 61 kg m/s2 |
| 62 N | 13.9376 lbf | 62 kg m/s2 |
| 63 N | 14.1624 lbf | 63 kg m/s2 |
| 64 N | 14.3872 lbf | 64 kg m/s2 |
| 65 N | 14.612 lbf | 65 kg m/s2 |
| 66 N | 14.8368 lbf | 66 kg m/s2 |
| 67 N | 15.0616 lbf | 67 kg m/s2 |
| 68 N | 15.2864 lbf | 68 kg m/s2 |
| 69 N | 15.5112 lbf | 69 kg m/s2 |
| 70 N | 15.736 lbf | 70 kg m/s2 |
| 71 N | 15.9608 lbf | 71 kg m/s2 |
| 72 N | 16.1856 lbf | 72 kg m/s2 |
| 73 N | 16.4104 lbf | 73 kg m/s2 |
| 74 N | 16.6352 lbf | 74 kg m/s2 |
| 75 N | 16.86 lbf | 75 kg m/s2 |
| 76 N | 17.0848 lbf | 76 kg m/s2 |
| 77 N | 17.3096 lbf | 77 kg m/s2 |
| 78 N | 17.5344 lbf | 78 kg m/s2 |
| 79 N | 17.7592 lbf | 79 kg m/s2 |
| 80 N | 17.984 lbf | 80 kg m/s2 |
| 81 N | 18.2088 lbf | 81 kg m/s2 |
| 82 N | 18.4336 lbf | 82 kg m/s2 |
| 83 N | 18.6584 lbf | 83 kg m/s2 |
| 84 N | 18.8832 lbf | 84 kg m/s2 |
| 85 N | 19.108 lbf | 85 kg m/s2 |
| 86 N | 19.3328 lbf | 86 kg m/s2 |
| 87 N | 19.5576 lbf | 87 kg m/s2 |
| 88 N | 19.7824 lbf | 88 kg m/s2 |
| 89 N | 20.0072 lbf | 89 kg m/s2 |
| 90 N | 20.232 lbf | 90 kg m/s2 |
| 91 N | 20.4568 lbf | 91 kg m/s2 |
| 92 N | 20.6816 lbf | 92 kg m/s2 |
| 93 N | 20.9064 lbf | 93 kg m/s2 |
| 94 N | 21.1312 lbf | 94 kg m/s2 |
| 95 N | 21.356 lbf | 95 kg m/s2 |
| 96 N | 21.5808 lbf | 96 kg m/s2 |
| 97 N | 21.8056 lbf | 97 kg m/s2 |
| 98 N | 22.0304 lbf | 98 kg m/s2 |
| 99 N | 22.2552 lbf | 99 kg m/s2 |
| 100 N | 22.48 lbf | 100 kg m/s2 |
| 101 N | 22.7048 lbf | 101 kg m/s2 |
| 102 N | 22.9296 lbf | 102 kg m/s2 |
| 103 N | 23.1544 lbf | 103 kg m/s2 |
| 104 N | 23.3792 lbf | 104 kg m/s2 |
| 105 N | 23.604 lbf | 105 kg m/s2 |
| 106 N | 23.8288 lbf | 106 kg m/s2 |
| 107 N | 24.0536 lbf | 107 kg m/s2 |
| 108 N | 24.2784 lbf | 108 kg m/s2 |
| 109 N | 24.5032 lbf | 109 kg m/s2 |
| 110 N | 24.728 lbf | 110 kg m/s2 |
| 111 N | 24.9528 lbf | 111 kg m/s2 |
| 112 N | 25.1776 lbf | 112 kg m/s2 |
| 113 N | 25.4024 lbf | 113 kg m/s2 |
| 114 N | 25.6272 lbf | 114 kg m/s2 |
| 115 N | 25.852 lbf | 115 kg m/s2 |
| 116 N | 26.0768 lbf | 116 kg m/s2 |
| 117 N | 26.3016 lbf | 117 kg m/s2 |
| 118 N | 26.5264 lbf | 118 kg m/s2 |
| 119 N | 26.7512 lbf | 119 kg m/s2 |
| 120 N | 26.976 lbf | 120 kg m/s2 |
| 121 N | 27.2008 lbf | 121 kg m/s2 |
| 122 N | 27.4256 lbf | 122 kg m/s2 |
| 123 N | 27.6504 lbf | 123 kg m/s2 |
| 124 N | 27.8752 lbf | 124 kg m/s2 |
| 125 N | 28.1 lbf | 125 kg m/s2 |
| 126 N | 28.3248 lbf | 126 kg m/s2 |
| 127 N | 28.5496 lbf | 127 kg m/s2 |
| 128 N | 28.7744 lbf | 128 kg m/s2 |
| 129 N | 28.9992 lbf | 129 kg m/s2 |
| 130 N | 29.224 lbf | 130 kg m/s2 |
| 133 N | 29.8984 lbf | 133 kg m/s2 |
| 136 N | 30.5728 lbf | 136 kg m/s2 |
| 140 N | 31.472 lbf | 140 kg m/s2 |
| 145 N | 32.596 lbf | 145 kg m/s2 |
| 150 N | 33.72 lbf | 150 kg m/s2 |
| 155 N | 34.844 lbf | 155 kg m/s2 |
| 160 N | 35.968 lbf | 160 kg m/s2 |
| 165 N | 37.092 lbf | 165 kg m/s2 |
| 170 N | 38.216 lbf | 170 kg m/s2 |
| 173 N | 38.8904 lbf | 173 kg m/s2 |
| 175 N | 39.34 lbf | 175 kg m/s2 |
| 185 N | 41.588 lbf | 185 kg m/s2 |
| 188 N | 42.2624 lbf | 188 kg m/s2 |
| 190 N | 42.712 lbf | 190 kg m/s2 |
| 195 N | 43.836 lbf | 195 kg m/s2 |
| 200 N | 44.96 lbf | 200 kg m/s2 |
| 210 N | 47.208 lbf | 210 kg m/s2 |
| 220 N | 49.456 lbf | 220 kg m/s2 |
| 225 N | 50.58 lbf | 225 kg m/s2 |
| 230 N | 51.704 lbf | 230 kg m/s2 |
| 250 N | 56.2 lbf | 250 kg m/s2 |
| 260 N | 58.448 lbf | 260 kg m/s2 |
| 280 N | 62.944 lbf | 280 kg m/s2 |
| 300 N | 67.44 lbf | 300 kg m/s2 |
| 350 N | 78.68 lbf | 350 kg m/s2 |
| 400 N | 89.92 lbf | 400 kg m/s2 |
| 500 N | 112.4 lbf | 500 kg m/s2 |
| 600 N | 134.88 lbf | 600 kg m/s2 |
| 800 N | 179.84 lbf | 800 kg m/s2 |
| 1000 N | 224.8 lbf | 1000 kg m/s2 |
Pounds to Newtons Conversion Table (lbf to N)
| Pounds (lbf) | Kilograms (kgs) |
|---|---|
| 1 lb | 0.4536 kg |
| 2 lbs | 0.9072 kg |
| 3 lbs | 1.361 kg |
| 4 lbs | 1.814 kg |
| 5 lbs | 2.268 kg |
| 6 lbs | 2.722 kg |
| 7 lbs | 3.175 kg |
| 8 lbs | 3.629 kg |
| 9 lbs | 4.082 kg |
| 10 lbs | 4.536 kg |
| 11 lbs | 4.99 kg |
| 12 lbs | 5.443 kg |
| 13 lbs | 5.897 kg |
| 14 lbs | 6.35 kg |
| 15 lbs | 6.804 kg |
| 16 lbs | 7.257 kg |
| 17 lbs | 7.711 kg |
| 18 lbs | 8.165 kg |
| 19 lbs | 8.618 kg |
| 20 lbs | 9.072 kg |
| 22 lbs | 9.979 kg |
| 24 lbs | 10.89 kg |
| 25 lbs | 11.34 kg |
| 30 lbs | 13.61 kg |
| 33 lbs | 14.97 kg |
| 35 lbs | 15.88 kg |
| 40 lbs | 18.14 kg |
| 45 lbs | 20.41 kg |
| 49 lbs | 22.23 kg |
| 50 lbs | 22.68 kg |
| 55 lbs | 24.95 kg |
| 62 lbs | 28.12 kg |
| 65 lbs | 29.48 kg |
| 70 lbs | 31.75 kg |
| 75 lbs | 34.02 kg |
| 90 lbs | 40.82 kg |
| 95 lbs | 43.09 kg |
| 100 lbs | 45.36 kg |
| 105 lbs | 47.63 kg |
| 107 lbs | 48.53 kg |
| 108 lbs | 48.99 kg |
| 110 lbs | 49.9 kg |
| 112 lbs | 50.8 kg |
| 113 lbs | 51.26 kg |
| 115 lbs | 52.16 kg |
| 118 lbs | 53.52 kg |
| 120 lbs | 54.43 kg |
| 125 lbs | 56.7 kg |
| 128 lbs | 58.06 kg |
| 129 lbs | 58.51 kg |
| 131 lbs | 59.42 kg |
| 132 lbs | 59.87 kg |
| 133 lbs | 60.33 kg |
| 134 lbs | 60.78 kg |
| 135 lbs | 61.23 kg |
| 136 lbs | 61.69 kg |
| 137 lbs | 62.14 kg |
| 138 lbs | 62.6 kg |
| 139 lbs | 63.05 kg |
| 140 lbs | 63.5 kg |
| 141 lbs | 63.96 kg |
| 142 lbs | 64.41 kg |
| 143 lbs | 64.86 kg |
| 144 lbs | 65.32 kg |
| 145 lbs | 65.77 kg |
| 146 lbs | 66.22 kg |
| 147 lbs | 66.68 kg |
| 148 lbs | 67.13 kg |
| 149 lbs | 67.59 kg |
| 150 lbs | 68.04 kg |
| 151 lbs | 68.49 kg |
| 152 lbs | 68.95 kg |
| 153 lbs | 69.4 kg |
| 154 lbs | 69.85 kg |
| 155 lbs | 70.31 kg |
| 156 lbs | 70.76 kg |
| 157 lbs | 71.21 kg |
| 158 lbs | 71.67 kg |
| 159 lbs | 72.12 kg |
| 160 lbs | 72.57 kg |
| 161 lbs | 73.03 kg |
| 162 lbs | 73.48 kg |
| 163 lbs | 73.94 kg |
| 164 lbs | 74.39 kg |
| 165 lbs | 74.84 kg |
| 166 lbs | 75.3 kg |
| 167 lbs | 75.75 kg |
| 168 lbs | 76.2 kg |
| 169 lbs | 76.66 kg |
| 170 lbs | 77.11 kg |
| 171 lbs | 77.56 kg |
| 172 lbs | 78.02 kg |
| 173 lbs | 78.47 kg |
| 174 lbs | 78.93 kg |
| 175 lbs | 79.38 kg |
| 176 lbs | 79.83 kg |
| 177 lbs | 80.29 kg |
| 178 lbs | 80.74 kg |
| 179 lbs | 81.19 kg |
| 180 lbs | 81.65 kg |
| 181 lbs | 82.1 kg |
| 182 lbs | 82.55 kg |
| 183 lbs | 83.01 kg |
| 184 lbs | 83.46 kg |
| 185 lbs | 83.91 kg |
| 186 lbs | 84.37 kg |
| 187 lbs | 84.82 kg |
| 188 lbs | 85.28 kg |
| 189 lbs | 85.73 kg |
| 190 lbs | 86.18 kg |
| 192 lbs | 87.09 kg |
| 194 lbs | 88 kg |
| 195 lbs | 88.45 kg |
| 196 lbs | 88.9 kg |
| 198 lbs | 89.81 kg |
| 200 lbs | 90.72 kg |
| 205 lbs | 92.99 kg |
| 210 lbs | 95.25 kg |
| 215 lbs | 97.52 kg |
| 220 lbs | 99.79 kg |
| 225 lbs | 102.1 kg |
| 230 lbs | 104.3 kg |
| 240 lbs | 108.9 kg |
| 245 lbs | 111.1 kg |
| 250 lbs | 113.4 kg |
| 260 lbs | 117.9 kg |
| 270 lbs | 122.5 kg |
| 280 lbs | 127 kg |
| 300 lbs | 136.1 kg |
| 320 lbs | 145.1 kg |
| 350 lbs | 158.8 kg |
Frequently Asked Questions on Newtons to Pounds Conversion
What is the value of 1 lbf?
1 lbf or 1 pound-force is equal to 32.174 lb ft/s2 which is equal to 4.4 Newtons
1 lbf is also equal to 0.45 kgf
How to convert lbm to lbf?
Use the formula, F = mass x acceleration
where m is the mass in pounds (lbm), acceleration due to gravity in ft/s2.
This will give the weight or force in lbm-ft/s2.
To convert this to lbf, divide by 32.174 as 1 lbf = 32.174 lbm-ft/s2
How to convert lbf to lbm?
Multiply lbf by 32.174 to get the lbm-ft/s2 which is the force.
Using f = ma, divide force by acceleration due to gravity, to get lbm
Is pound force same as weight?
Yes, in scientific terms, weight is actually the force exerted on a body due to gravity which is what pound force measures.
Pound Force or lbf is actually the weight of 1 lb of an object at standard gravity.
Force or Weight = Mass (lb) x acceleration due to gravity
Here, standard gravity refers to the gravitational constant for earth which is 9.81 m/s2 or 32.174 ft/s2
lbf = lb x 32.174 ft/s2
However, in general usage, weight is often used instead of mass.
It does not matter as such because on the surface of earth, a body of mass 1 lb will have a pound force or weight of 1 lbf (pound-force)
Similarly a body of mass 1 kg will weigh 1 kgf (kilogram-force)
Which Is bigger Newton or Pound Force?
A pound force is a bigger unit. (lbf > N)
An lbf (pound-force) is 4.45 times bigger than Newton.
Or, we can say that 1 Newton is 0.225 that of a Pound.
A 100 Newtons corresponds to 22.5 Pound Force
How do we measure pound force and pound mass?
Pound force or weight can be measured using spring balance. This measures the weight/force acting on the object due to gravity.
Pound mass can be measured using ordinary balance. Also known as beam balance or pan balance. The pound mass measurement does not require gravity to be taken into account.
Is weight measured in lbs or lbf?
Weight is actually defined as the force acting on any object at standard gravity. So weight and force are in lbf. (pound-force)
However, if weight is used as a general term to mean mass then it is lbs (pounds).
Also, since 1 lbf is 32.174 lb-ft/s2, for earth, the mass in lbs will always correspond to the weight in lbf ie 1 lbf = 1 lb. It means the weight of a 5 lbs object will be 5 lbf and so on..
Is Newton a measure of weight?
Yes, by definition Weight is the force acting on a body due to gravity.
Newton is the SI unit of Force / Weight
Force/Weight = mass x acceleration (where acceleration is 9.8 m/s2 which is earth's gravitational constant)
