# Energy Density Calculator, Formula, Energy Density Calculation

## Energy Density Calculator:

Enter the values of total energy, E(J) and total volume, V(m3) to determine the value of Energy density, Ed(J/m3).

 Enter Total Energy: J Enter Total Volume: 3 Result – Energy Density: J/m3

## Energy Density Formula:

Energy density (Ed) refers to the amount of energy stored per unit volume in a system. It’s measured in Joules per cubic meter. A higher energy density signifies more energy packed into a smaller space.

Higher energy density implies that more energy can be stored or transported within a smaller volume, which is crucial for applications where space and weight are limited, such as in electric vehicles or portable electronics.

A system with a higher total energy content will have a higher energy density if its volume remains constant.

If we compress a system (reduce its volume) while keeping the total energy constant, the energy density will increase.

Imagine a battery pack. The energy density of this battery pack will determine how much energy it can store and supply, influencing its size and weight for a given energy capacity.

Energy density, Ed(J/m3) in joules per cubic metres is calculated by dividing the total energy, E(J) in joules by total volume, V(m3) in cubic metres.

Energy density, Ed(J/m3) = E(J) / V(m3)

Ed(J/m3) = energy density in joules per cubic metres, J/m3.

E(J) = total energy in joules, J.

V(m3) = total volume in cubic metres, m3.

### Energy Density Calculation:

1. A fuel cell stores 500 joules of energy in a volume of 0.25 cubic meters. What is the energy density of the fuel cell?

Given: E(J) = 500J, V(m3) = 0.25 m3.

Energy density, Ed(J/m3) = E(J) / V(m3)

Ed(J/m3) = 500 / 0.25

Ed(J/m3) = 2000J/m3.

1. A battery has an energy density of 400 J/m³ and stores a total energy of 1600 joules. What is the volume of the battery?

Given: E(J) = 1600J, Ed(J/m3) = 400J/m3.

Energy density, Ed(J/m3) = E(J) / V(m3)

V(m3) = E(J) / Ed(J/m3)

V(m3) = 1600 / 400

V(m3) = 4m3.