Enter the values of mass, energy (amu, g, kg, lb), to quickly calculate the Energy (Joules, Kj, Cal, Kcal, eV) with greater accuracy!

## Amu To Joules Calculator

Enter any 1 value to calculate the other variable

The **Amu to Joules Calculator** helps convert mass in atomic mass units (amu) into energy in joules. This is commonly used in physics and chemistry to express the energy equivalent of a given mass based on Einstein’s equation.

### Formula:

Contents

`$E = m \times c^2$`

Variable |
Description |
---|---|

E |
Energy in joules |

m |
Mass in atomic mass units (amu) |

c |
Speed of light ($3 \times 10^8 \, \text{m/s}$) |

**What is AMU to Joules Calculator?**

An **AMU to Joules Calculator** is a powerful tool that is designed to convert atomic mass units (amu) into energy expressed in joules (J). The relationship between these two units is fundamental in physics, particularly when dealing with atomic and subatomic particles. The conversion from amu to joules is based on Einstein’s famous equation $E = mc^2$, where $c$ is the speed of light.

**Conversion Formula:**

The energy equivalent of **1 amu** is given by:

$1 \text{ amu} = 1.66053906660 \times 10^{-27} \text{ kg}$$E = \text{mass (kg)} \times c^2$

Where:

- $c$ is the speed of light, approximately $3.0 \times 10^8$ m/s.
- The resulting value is in joules (J).

**Example Calculation:**

To find the energy equivalent of 1 amu in joules:

$E = (1.66053906660 \times 10^{-27} \text{ kg}) \times (3.0 \times 10^8 \text{ m/s})^2$$E = 1.492 \times 10^{-10} \text{ J}$

Thus, **1 amu** is approximately equal to **1.492 × 10⁻¹⁰ J**.

**Applications:**

**Physics calculations**: To understand energy changes in atomic and nuclear reactions.**Chemistry applications**: For conversions involving molar energy like**kJ/mol**or**MeV**.**Particle physics**: To link mass and energy of particles.

**Final Words:**

In short, you can use **online amu to joules calculators** to automate these conversions for different values of amu, or apply this formula for precise calculations in research and educational contexts.