Force Converter

To convert newtons (N) to pounds-force (lbf), divide by 4.44822. For example, 100 N = 100 ÷ 4.44822 = 22.48 lbf. To convert pounds-force to newtons, multiply by 4.44822.

Mass (measured in kilograms) is the amount of matter in an object and does not change with location. Force (measured in newtons) depends on acceleration—including gravity. A 1 kg object experiences about 9.81 N of gravitational force on Earth, but only 1.62 N on the Moon.

A kilogram-force (kgf) is the force exerted by one kilogram of mass under standard gravity. One kgf equals exactly 9.80665 newtons. While kgf is convenient for everyday use (a 70 kg person experiences about 70 kgf), newtons are preferred in scientific contexts.

On Earth's surface, gravity accelerates objects at approximately 9.81 m/s². This means a 1 kg object experiences a gravitational force of 9.81 N. The acceleration varies slightly with location—from about 9.78 m/s² at the equator to 9.83 m/s² at the poles.