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Megaelectronvolts to Watt-hours Converter

Convert megaelectronvolts (MeV) to watt-hours (Wh), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Enter an amount of energy, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.

A number, fraction (3/8), mixed number (1 1/2), scientific notation (2.5e6) or a simple sum such as 2*3.
The unit you want the answer in. Swap exchanges the two units.
Result
4.45049065 × 10⁻¹⁷ Wh
joules (watt-seconds)
1.602176634 × 10⁻¹³ J
kilojoules
1.602176634 × 10⁻¹⁶ kJ
megajoules
1.602176634 × 10⁻¹⁹ MJ
gigajoules
1.602176634 × 10⁻²² GJ
calories (thermochemical)
3.82929405832 × 10⁻¹⁴ cal
kilocalories (food Calories)
3.82929405832 × 10⁻¹⁷ kcal
megacalories
3.82929405832 × 10⁻²⁰ Mcal
kilowatt-hours
4.45049065 × 10⁻²⁰ kWh
megawatt-hours
4.45049065 × 10⁻²³ MWh
British thermal units (IT)
1.51857044347 × 10⁻¹⁶ Btu
million Btu
1.51857044347 × 10⁻²² MMBtu
therms (100,000 Btu)
1.51857044347 × 10⁻²¹ thm
quads (10¹⁵ Btu)
1.51857044347 × 10⁻³¹ quad
electronvolts
1,000,000 eV
kiloelectronvolts
1,000 keV

1 MeV = 4.45049065 × 10⁻¹⁷ Wh

Show the working
  1. 1 MeV = 4.45049065e-17 Wh
  2. 1 × 4.45049065e-17 = 4.45049065e-17 Wh

How to convert megaelectronvolts to watt-hours

1 MeV = 4.45049065 × 10⁻¹⁷ Wh, so multiply by 4.45049065 to go from megaelectronvolts to watt-hours. Going the other way, 1 Wh = 2.24694326681 × 10¹⁶ MeV.

Wh = MeV × 4.45049065
MeV = Wh × 2.24694326681

Worked example:

1 MeV = 4.45049065e-17 Wh
5 × 4.45049065e-17 = 2.225245325e-16 Wh

Megaelectronvolts to watt-hours table

MegaelectronvoltsWatt-hours
1 MeV4.45049065 × 10⁻¹⁷ Wh
2 MeV8.9009813 × 10⁻¹⁷ Wh
3 MeV1.335147195 × 10⁻¹⁶ Wh
4 MeV1.78019626 × 10⁻¹⁶ Wh
5 MeV2.225245325 × 10⁻¹⁶ Wh
6 MeV2.67029439 × 10⁻¹⁶ Wh
7 MeV3.115343455 × 10⁻¹⁶ Wh
8 MeV3.56039252 × 10⁻¹⁶ Wh
9 MeV4.005441585 × 10⁻¹⁶ Wh
10 MeV4.45049065 × 10⁻¹⁶ Wh
15 MeV6.675735975 × 10⁻¹⁶ Wh
20 MeV8.9009813 × 10⁻¹⁶ Wh
25 MeV1.1126226625 × 10⁻¹⁵ Wh
30 MeV1.335147195 × 10⁻¹⁵ Wh
40 MeV1.78019626 × 10⁻¹⁵ Wh
50 MeV2.225245325 × 10⁻¹⁵ Wh
75 MeV3.3378679875 × 10⁻¹⁵ Wh
100 MeV4.45049065 × 10⁻¹⁵ Wh
250 MeV1.1126226625 × 10⁻¹⁴ Wh
500 MeV2.225245325 × 10⁻¹⁴ Wh
1000 MeV4.45049065 × 10⁻¹⁴ Wh

About the units

Megaelectronvolts (MeV)
Megaelectronvolts, a specialised unit. Definition: NIST CODATA: elementary charge (exact since the 2019 SI redefinition).

Formula version 0.1.0Reviewed