​Atomic Mass Calculator

The word “atomic mass” refers to the total mass of an atom relative to the mass of the Carbon-12 isotope. Formerly, the atomic mass of an element was suggested in accordance with the Hydrogen atom but later it was reconsidered and revised. The scientist suggested the C-12 as the best relative measure of the atomic mass. The term is often known as the “Mass Number of an element”. If we elaborate on the term, atomic mass is actually the sum of the number of electrons and the number of neutrons in an atom multiplied by 1 am.

The international representation of the atomic mass is “A”

The SI unit of the mass number is “atomic mass unit (AMU)” or “kilograms (kg)”


Formula of ​Atomic Mass Calculator

According to the definition of atomic mass, the mathematical representation will be

A = Number of protons + Number of neutrons


In geometry, finding the area is quite difficult for some shapes.

To calculate lean body mass, you can use our Lean Body Mass Calculator.

How to calculate the Atomic Mass of an Atom?

To calculate the atomic mass manually, you will have to find the total number of electrons and neutrons of that element and make the sum of their masses, you will get the total mass number of the element. For this, you have to remember the values of the masses of electrons and neutrons. We take electrons as it is equal to the number of protons, while neutrons are different in the isotopes of the elements.

How to use ​Atomic Mass Calculator?

The steps to use ​an atomic mass calculator are as follows:

Step 1: Enter the value of a number of protons in the first required input.

Step 2: Enter the value of the number of neutrons in the second required input.

Step 3: The calculator will automatically display an answer on the screen.

Calculator use

Using the atomic mass calculator can prove to be helpful and time-saving for you. Put the number of neutrons and electrons or protons simply to get the values. No complicated calculations and values to remember. Get rid of putting the values manually and use this calculator in the future.