Planck force

Planck force is often useful in scientific calculations as a ratio of electromagnetic energy per gravitational length.

As mentioned above, Planck force has a unique association with the Planck mass.

Planck force is the derived unit of force resulting from the definition of the base Planck units for time, length, and mass.

Since the dimension of force is also a ratio of energy per length, the Planck force can be calculated as energy divided by half the Schwarzschild radius:

As can be seen above, the gravitational attractive force of two bodies of 1 Planck mass each, set apart by 1 Planck length is 1 Planck force.

The Planck force is also associated with the equivalence of gravitational potential energy and electromagnetic energy and in this context it can be understood as the force that confines a self-gravitating mass to half its Schwarzschild radius: