Convert pound-force to newton
pound-force
Definition: The pound-force (symbol: lbf) is a unit of force used in the English Engineering System and the British Gravitational System. It is defined as the gravitational force exerted on a mass of one avoirdupois pound under the condition of standard gravity (9.80665 m/s2). Under this definition, with mass in terms of slugs, one pound-force is equal to 1 slug·foot/second2.
History/origin: The pound-force is part of the foot-pound-second (FPS) system of units. Until 1901, when the General Conference of Weights and Measures adopted a standard acceleration due to gravity of 9.80665 m/s2, the pound-force was not precisely defined.
Current use: After the adoption of the International System of Units (SI), the newton, an SI derived unit of force, became the preferred unit of measurement of force. Although the pound-force may still be used in certain contexts, it is not a widely used unit of measurement.
newton
Definition: The newton (symbol: N) is the SI (International System of Units) derived unit of force. It is defined as 1 kilogram·meter/second2.
History/origin: The unit newton is named after Isaac Newton for his contribution to classical mechanics – particularly his second law of motion, which states that the rate of change of momentum of a body is directly proportional to the applied force, and that this change in momentum occurs in the direction of the applied force.
Current use: As an SI derived unit of force, the newton is the preferred unit of force, and is widely used in scientific contexts, particularly in physics. In everyday use, units such as the pound-force are sometimes used in place of newtons in countries like the United States.
pound-force to newton Conversion Table
| pound-force [lbf] | newton [N] |
|---|---|
| 0.01 pound-force | 0.0445 newton |
| 0.10 pound-force | 0.4448 newton |
| 1 pound-force | 4.45 newton |
| 2 pound-force | 8.90 newton |
| 3 pound-force | 13.34 newton |
| 5 pound-force | 22.24 newton |
| 10 pound-force | 44.48 newton |
| 20 pound-force | 88.96 newton |
| 50 pound-force | 222.41 newton |
| 100 pound-force | 444.82 newton |
| 1000 pound-force | 4448 newton |
How to Convert pound-force to newton
1 pound-force = 4.45 newton
1 newton = 0.224809 pound-force
Example
Convert 15 pound-force to newton:
15 pound-force = 15 × 4.45 newton = 66.72 newton
