Electron Volt to Megajoule Converter

Energy Converter

27 units available

Decimals:

From

To

1.602177e-25

1 eV = 1.602177e-25 MJ

Formula:

MJ = eV × 1.602177e-25

With your value: 1 eV = 1.602177e-25 MJ

How big is that?

Everyday references on a logarithmic scale, all expressed in electron volt so you can sanity-check the result.

Your value1.00 eV

Heartbeat (6.2e+18× your value)6.24e+18 eV

AA battery charge (6.2e+22× your value)6.24e+22 eV

Slice of bread (1.7e+24× your value)1.75e+24 eV

Daily food intake (5.2e+25× your value)5.24e+25 eV

Litre of petrol (2.1e+26× your value)2.13e+26 eV

Other Electron Volt to Megajoule conversions

2 eV to MJ 3 eV to MJ 4 eV to MJ 5 eV to MJ 6 eV to MJ 7 eV to MJ 8 eV to MJ

Electron Volt to Megajoule Conversion Table

Electron Volt (eV)	Megajoule (MJ)
0.5	8.010883e-26
1	1.602177e-25
2	3.204353e-25
5	8.010883e-25
10	1.602177e-24
15	2.403265e-24
20	3.204353e-24
25	4.005442e-24
50	8.010883e-24
100	1.602177e-23
250	4.005442e-23
500	8.010883e-23
1000	1.602177e-22

Megajoule to Electron Volt Conversion Table

Megajoule (MJ)	Electron Volt (eV)
0.5	3.120755e+24
1	6.241509e+24
2	1.248302e+25
5	3.120755e+25
10	6.241509e+25
15	9.362264e+25
20	1.248302e+26
25	1.560377e+26
50	3.120755e+26
100	6.241509e+26
250	1.560377e+27
500	3.120755e+27
1000	6.241509e+27

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Electron Volt (eV)

Energy

Exact conversion

1 eV = 1.602 176 634 × 10⁻¹⁹ J exactly, since the elementary charge is now fixed.

Source: CODATA Internationally Recommended Values of the Fundamental Physical Constants (2022 adjustment)

CODATA / NIST · Reviewed 2026-07-01

Megajoule (MJ)

Energy

Exact conversion

Derived from the joule (1 J = 1 kg·m²/s²). Thermochemical and IT calories, BTU and kWh are exact defined multiples.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Electron Volt to Megajoule

To convert from Electron Volt (eV) to Megajoule (MJ), multiply the value by 1.602177e-25.

Formula: MJ = eV × 1.602177e-25

Reverse: eV = MJ × 6.241509e+24

Step-by-Step Example

Start with your value in Electron Volt. For example: 5 eV
Multiply by the conversion factor: 5 x 1.602177e-25
The result is: 8.010883e-25 MJ

About Electron Volt

The electron volt (eV) is a unit of energy and work. One electron volt equals 1.602177 × 10^-19 joules. UnitConvertLab converts it against every other energy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: energy calculations, engineering and science, education.

About Megajoule

The megajoule (MJ) is a unit of energy and work. One megajoule equals 1.000000 × 10^+6 joules. UnitConvertLab converts it against every other energy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: energy calculations, engineering and science, education.

Frequently Asked Questions

How many Megajoule are in 1 Electron Volt?

There are exactly 1.602177e-25 Megajoule in 1 Electron Volt. This means the conversion factor from Electron Volt to Megajoule is 1.602177e-25.

What is the formula to convert Electron Volt to Megajoule?

The formula to convert Electron Volt to Megajoule is: MJ = eV × 1.602177e-25. For example, to convert 10 Electron Volt to Megajoule, you would multiply 10 by 1.602177e-25.

What is a Electron Volt?