Enter the mass in atomic mass units and the speed of light into the calculator to determine the energy in Joules.

## Amu To Joules Formula

The following formula is used to calculate energy in Joules from mass in atomic mass units (amu).

E = m * c^2

Variables:

- E is the energy in Joules (J)
- m is the mass in atomic mass units (amu)
- c is the speed of light in meters per second (m/s), which is approximately 3.00 x 10^8 m/s

To calculate the energy in Joules, multiply the mass in atomic mass units by the square of the speed of light. Note that the speed of light is a constant and does not change. The result is the energy in Joules.

## What is Amu To Joules?

Amu to Joules is a conversion from atomic mass units (amu) to Joules (J), which are units of energy. This conversion is often used in physics and chemistry to describe the energy of particles at the atomic or molecular level. The conversion factor is based on the principle of mass-energy equivalence, as stated in Einstein’s famous equation E=mc^2, where E is energy, m is mass, and c is the speed of light.

## How to Calculate Amu To Joules?

The following steps outline how to calculate the energy in Joules (J) using the formula E = m * c^2.

- First, determine the mass in atomic mass units (amu).
- Next, determine the speed of light in meters per second (m/s).
- Next, gather the formula from above = E = m * c^2.
- Finally, calculate the energy in Joules (J).
- After inserting the variables and calculating the result, check your answer with a calculator.

**Example Problem:**

Use the following variables as an example problem to test your knowledge.

mass (m) in atomic mass units (amu) = 5

speed of light (c) in meters per second (m/s) = 3.00 x 10^8