Enter the total energy and the total volume of a system into the calculator to determine the energy density.

## Energy Density Formula

The following formula is used to calculate the energy density of a volume.

E_{d} = E / V

- Where Ed is the energy density (J/m^3)
- E is the total energy (J)
- V is the total volume (m^3)

## Energy Density Definition

An energy density is defined as the total energy per unit of volume or area of a system.

## Energy Density Example

How to calculate energy density?

**First, measure the total energy of the system.**For this example we will say we calculated the total energy to be 1,000 Joules.

**Next, determine the total volume.**Measuring the total volume we find our system is 40 m^3.

**Finally, calculate the energy density.**Using the formula we find the energy density to be 1,000/40 = 25 J/m^3.

## FAQ

**What is energy density?**

Energy density is a measure of the total energy per unit volume of a system. It can also be the energy per unit area when looking at a surface area.