Enter the object’s mass and acceleration due to gravity into the calculator to determine the load force.

Load Force Formula

The following equation is used to calculate the Load Force.

LF = m*a
  • Where LF is the load force (N)
  • m is the mass (kg)
  • a is the acceleration due to gravity (m/s^2)

To calculate a load force, multiply the load mass by 9.81 m/s^2.

What is a Load Force?


Load force is a measurement of how much weight is applied to a surface. A load force can result from a physical push or the weight of an object on a shelf or in water. The SI unit for load force is Newton, abbreviated as N.

To determine an accurate load force, all forces and factors must be considered. For example, when calculating the load force on a shelf that holds several books, you would need to measure the weight of each book individually and then calculate the total weight of all books together. You also need to consider any outside forces, such as gravity or friction.

How to Calculate Load Force?

Example Problem:

The following example outlines the steps and information needed to calculate the load force.

First, determine the weight of the object. In this example, the weight of the object is 125 kg.

Next, determine the acceleration due to gravity. For this problem, the acceleration due to gravity is 9.81 m/s^2.

Finally, calculate the load force using the formula above:

LF = m*a

LF = 125*9.81

LF = 1,226.25 N