Choose a quantity to calculate using F = m·a or F = ΔP·A, with gravity and pressure presets available. ΔP is the uniform pressure difference acting downward across the loaded surface.

F = m × a

Scalar magnitudes only. F = m·a is net force along the downward axis; for weight, use local gravity. Pressure force assumes a uniform pressure difference acting downward.

Gravity preset

Earth: standard gravity. Moon: surface average. Other bodies: equatorial references; gas giants: 1-bar level. Values are approximate.

Downward Force Formula

The following equation is used to calculate the Downward Force.

Fd = m × AD
  • Where Fd is the downward force (N)
  • m is the mass (kg)
  • AD is the acceleration in the downward direction (m/s²)

To calculate the downward force, multiply the mass by the downward acceleration.

What is a Downward Force?

Definition:

A downward force is a force that pulls an object down. For example, the Earth’s gravity pulls things down towards it, so we can say that gravity is a downward force.

How to Calculate Downward Force?

Example Problem:

The following example outlines the steps and information needed to calculate the Downward Force.

First, determine the downward acceleration of the object. In this example, gravity pulls the object downward at an acceleration of 9.81 m/s^2.

Next, measure the mass of the object. This object is measured to have a total mass of 30 kg.

Finally, calculate the downward force using the formula above:

Fd = m * AD

Fd = 30* 9.81

Fd = 294.3 N