Electronvolts to Megacalories Converter

Enter the energy in electronvolts below to get the value converted to megacalories.


Result in Megacalories:

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1 eV = 3.8293E-26 Mcal
Hint: use a scientific notation calculator to convert E notation to decimal

Do you want to convert megacalories to electronvolts?

How to Convert Electronvolts to Megacalories

To convert a measurement in electronvolts to a measurement in megacalories, multiply the energy by the following conversion ratio: 3.8293E-26 megacalories/electronvolt.

Since one electronvolt is equal to 3.8293E-26 megacalories, you can use this simple formula to convert:

megacalories = electronvolts × 3.8293E-26

The energy in megacalories is equal to the energy in electronvolts multiplied by 3.8293E-26.

For example, here's how to convert 5.0E+25 electronvolts to megacalories using the formula above.
megacalories = (5.0E+25 eV × 3.8293E-26) = 1.914647 Mcal

Electronvolts and megacalories are both units used to measure energy. Keep reading to learn more about each unit of measure.

What Is an Electronvolt?

An electronvolt is the amount of energy required to accelerate an electron through a difference in electric potential of one volt in vacuum. One electronvolt is equal to the charge of 1.602176634 × 10−19 C, and is equal to the energy of 1.602176634 × 10−19 Joules.[1]

Electronvolts can be abbreviated as eV; for example, 1 electronvolt can be written as 1 eV.

Energy in electronvolts can be expressed using the following formula: E = qV

The energy E in electronvolts is equal to the electric charge q in elementary charge times the potential difference V in volts.

Learn more about electronvolts.

What Is a Megacalorie?

One megacalorie is equal to 1,000,000 calories, which is the heat needed to raise the temperature of one gram of water from 14.5 to 15.5 degrees Celsius. One megacalorie is equal to 4.184 megajoules.

Megacalories can be abbreviated as Mcal; for example, 1 megacalorie can be written as 1 Mcal.

Learn more about megacalories.

Electronvolt to Megacalorie Conversion Table

Table showing various electronvolt measurements converted to megacalories.
Electronvolts Megacalories
1 eV 0.000000000000000000000000038293 Mcal
2 eV 0.000000000000000000000000076586 Mcal
3 eV 0.00000000000000000000000011488 Mcal
4 eV 0.00000000000000000000000015317 Mcal
5 eV 0.00000000000000000000000019146 Mcal
6 eV 0.00000000000000000000000022976 Mcal
7 eV 0.00000000000000000000000026805 Mcal
8 eV 0.00000000000000000000000030634 Mcal
9 eV 0.00000000000000000000000034464 Mcal
10 eV 0.00000000000000000000000038293 Mcal
100 eV 0.0000000000000000000000038293 Mcal
1,000 eV 0.000000000000000000000038293 Mcal
10,000 eV 0.00000000000000000000038293 Mcal
100,000 eV 0.0000000000000000000038293 Mcal
1,000,000 eV 0.000000000000000000038293 Mcal
10,000,000 eV 0.00000000000000000038293 Mcal
100,000,000 eV 0.0000000000000000038293 Mcal
1,000,000,000 eV 0.000000000000000038293 Mcal
10,000,000,000 eV 0.00000000000000038293 Mcal
100,000,000,000 eV 0.0000000000000038293 Mcal
1,000,000,000,000 eV 0.000000000000038293 Mcal
10,000,000,000,000 eV 0.00000000000038293 Mcal
100,000,000,000,000 eV 0.0000000000038293 Mcal
1,000,000,000,000,000 eV 0.000000000038293 Mcal
10,000,000,000,000,000 eV 0.00000000038293 Mcal
100,000,000,000,000,000 eV 0.0000000038293 Mcal
1,000,000,000,000,000,000 eV 0.000000038293 Mcal
10,000,000,000,000,000,000 eV 0.00000038293 Mcal
100,000,000,000,000,000,000 eV 0.0000038293 Mcal
1,000,000,000,000,000,000,000 eV 0.000038293 Mcal
10,000,000,000,000,000,000,000 eV 0.000383 Mcal
99,999,999,999,999,991,611,392 eV 0.003829 Mcal
999,999,999,999,999,983,222,784 eV 0.038293 Mcal
10,000,000,000,000,000,905,969,664 eV 0.382929 Mcal
100,000,000,000,000,004,764,729,344 eV 3.8293 Mcal


  1. Tatum, J., Electricity and Magnetism - 2.3: Electron-volts, https://phys.libretexts.org/Bookshelves/Electricity_and_Magnetism/Electricity_and_Magnetism_(Tatum)/02%3A_Electrostatic_Potential/2.03%3A_Electron-volts

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