Megaelectronvolts to Watt-hours Conversion

Enter the energy in megaelectronvolts below to get the value converted to watt-hours.

Results in Watt-hours:
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1 MeV = 4.4505E-17 Wh
Hint: use a scientific notation calculator to convert E notation to decimal

How to Convert Megaelectronvolts to Watt-hours

To convert a megaelectronvolt measurement to a watt-hour measurement, divide the energy by the conversion ratio.

Since one watt-hour is equal to 2.2469E+16 megaelectronvolts, you can use this simple formula to convert:

watt-hours = megaelectronvolts ÷ 2.2469E+16

The energy in watt-hours is equal to the megaelectronvolts divided by 2.2469E+16.

For example, here's how to convert 5.0E+16 megaelectronvolts to watt-hours using the formula above.
5.0E+16 MeV = (5.0E+16 ÷ 2.2469E+16) = 2.225245 Wh

Megaelectronvolts and watt-hours are both units used to measure energy. Keep reading to learn more about each unit of measure.


Megaelectronvolts can be abbreviated as MeV; for example, 1 megaelectronvolt can be written as 1 MeV.


The watt-hour is a measure of electrical energy equal to one watt of power over a one hour period.

Watt-hours are usually abbreviated as Wh, although the formally adopted expression is W·h. The abbreviation W h is also sometimes used. For example, 1 watt-hour can be written as 1 Wh, 1 W·h, or 1 W h.

In formal expressions, the centered dot (·) or space is used to separate units used to indicate multiplication in an expression and to avoid conflicting prefixes being misinterpreted as a unit symbol.[1]

Megaelectronvolt to Watt-hour Conversion Table

Megaelectronvolt measurements converted to watt-hours
Megaelectronvolts Watt-hours
1 MeV 0.000000000000000044505 Wh
2 MeV 0.00000000000000008901 Wh
3 MeV 0.00000000000000013351 Wh
4 MeV 0.00000000000000017802 Wh
5 MeV 0.00000000000000022252 Wh
6 MeV 0.00000000000000026703 Wh
7 MeV 0.00000000000000031153 Wh
8 MeV 0.00000000000000035604 Wh
9 MeV 0.00000000000000040054 Wh
10 MeV 0.00000000000000044505 Wh
100 MeV 0.0000000000000044505 Wh
1,000 MeV 0.000000000000044505 Wh
10,000 MeV 0.00000000000044505 Wh
100,000 MeV 0.0000000000044505 Wh
1,000,000 MeV 0.000000000044505 Wh
10,000,000 MeV 0.00000000044505 Wh
100,000,000 MeV 0.0000000044505 Wh
1,000,000,000 MeV 0.000000044505 Wh
10,000,000,000 MeV 0.00000044505 Wh
100,000,000,000 MeV 0.0000044505 Wh
1,000,000,000,000 MeV 0.000044505 Wh
10,000,000,000,000 MeV 0.000445 Wh
100,000,000,000,000 MeV 0.00445 Wh
1,000,000,000,000,000 MeV 0.044505 Wh
10,000,000,000,000,000 MeV 0.445049 Wh
100,000,000,000,000,000 MeV 4.4505 Wh


  1. Bureau International des Poids et Mesures, The International System of Units (SI), 9th edition, 2019,

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