Coulomb's Law Calculator - Solve for Force, Charge, or Distance

Using the Calculator

To utilize the Coulomb's Law Calculator, first, select the value you want to calculate: charge, force, or distance. If the charges are equal in your problem, you can check the "Equal Charges" checkbox. Otherwise, you can enter the second charge value in the additional field.

The remaining input fields depend on the selected value:

• If calculating charge:
  Force: Enter the force value and select the unit from the combobox (newton, millinewton, micronewton, nanonewton, piconewton).
  Distance: Enter the distance value and select the unit from the combobox (meter, centimeter, millimeter, micrometer, nanometer).

• If calculating force:
  Charge: Enter the charge value and select the unit from the combobox (coulomb, millicoulomb, microcoulomb, nanocoulomb, picocoulomb).
  Distance: Enter the distance value and select the unit from the combobox (meter, centimeter, millimeter, micrometer, nanometer).

• If calculating distance:
  Charge: Enter the charge value and select the unit from the combobox (coulomb, millicoulomb, microcoulomb, nanocoulomb, picocoulomb).
  Force: Enter the force value and select the unit from the combobox (newton, millinewton, micronewton, nanonewton, piconewton).

Once you've entered the required values, click the "Calculate" button. The calculator will determine the unknown value based on the known values you provided. For a deeper understanding of Coulomb's law and its applications, refer to the 'Understanding Coulomb's Law' section below the calculator.

Coulomb's law

Calculatecharge force distance

Charge's values are equal

Charge 1

Charge 1 unitscoulomb millicoulomb microcoulomb nanocoulomb picocoulomb

Charge 2

Charge 2 unitscoulomb millicoulomb microcoulomb nanocoulomb picocoulomb

Force

Force unitsnewton millinewton micronewton nanonewton piconewton

Distance

Distance unitsmeter centimeter millimeter micrometer nanometer

Calculation precision

Digits after the decimal point: 2

Calculate

Force

 

Force units

 

Charge

 

Charge units

 

Distance

 

Distance units

 

 Link  Save  Widget

Understanding Coulomb's Law

The calculator is based on Coulomb's law, which relates the force between two charged objects to their charges and the distance between them. The scalar form of Coulomb's law equation is:

Here, is Coulomb's constant, given by , where is the electrical constant (approximately ).

This calculator is a valuable tool for solving school physics problems. You can use it to calculate various unknowns based on known values using Coulomb's law. Examples of typical problems include determining the magnitude of the electrical force of repulsion between two point charges or finding the separation distance between charged objects.

Delve into the world of Coulomb's law and effortlessly solve physics problems with the Coulomb's Law Calculator. Gain a deeper understanding of the interactions between charges and enhance your problem-solving skills.