Skip to content

Inverse Square Law Calculator

Physics
0.0(0)

Calculates the intensity or effect of something according to the inverse square law. This law states that the intensity of a phenomenon is inversely proportional to the square of the distance from the source.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Initial Intensity, Initial Distance, and New Distance in the units shown.

Step 2

Read New Intensity in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Example 1

Initial Intensity: 100 units; Initial Distance: 1 meters; New Distance: 2 meters

New Intensity: 25 units

Example 2

Initial Intensity: 50 units; Initial Distance: 2 meters; New Distance: 4 meters

New Intensity: 12.5 units

Example 3

Initial Intensity: 200 units; Initial Distance: 1 meters; New Distance: 5 meters

New Intensity: 8 units

Explore the topic

Explore More Science & Lab Calculators

Find calculators for chemistry, biology, lab dilution, concentration, osmolarity, genetics, physics, and experimental planning.

Explore tools
People Also Calculate

Related Calculators

Continue with another tool on a related topic.