Newtons to Kilograms-force Converter

To convert a measurement in newtons to kilograms-force, multiply the value by 0.101971621298. The conversion factor comes from the relationship between both units and the newton.

For example, to convert 5 N to kilograms-force: 5 × 0.101971621298 = 0.509858106489 kgf.

A newton is the SI derived unit of force, defined as the force needed to accelerate a mass of one kilogram at one meter per second squared (1 N = 1 kg·m/s²). Named after Sir Isaac Newton in recognition of his work on classical mechanics, the unit was adopted by the General Conference on Weights and Measures in 1948 and formally added to the SI system in 1960.

Common uses of newtons include: Physics and engineering force calculations; Structural load and tension analysis; Thrust ratings for small motors and actuators; Material testing (tensile and compressive strength).

A kilogram-force is the force exerted by gravity on a mass of one kilogram under standard gravity, equal to exactly 9.80665 newtons. The kilogram-force (also called the kilopond) was common in older metric engineering before the SI newton became standard. It is still encountered in tire pressure, thrust, and legacy technical documents.

Common uses of kilograms-force include: Legacy metric engineering documentation; Thrust ratings expressed in kgf (aviation); Spring and load-cell calibration; Everyday 'weight as force' descriptions.

Here are some common values converted:

1 N = 0.101971621298 kgf 5 N = 0.509858106489 kgf 10 N = 1.019716 kgf 50 N = 5.098581 kgf 100 N = 10.197162 kgf