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Kiloelectronvolts to Kilowatt-hours Converter

Convert kiloelectronvolts (keV) to kilowatt-hours (kWh), 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 × 10⁻²³ kWh
joules (watt-seconds)
1.602176634 × 10⁻¹⁶ J
kilojoules
1.602176634 × 10⁻¹⁹ kJ
megajoules
1.602176634 × 10⁻²² MJ
gigajoules
1.602176634 × 10⁻²⁵ GJ
calories (thermochemical)
3.82929405832 × 10⁻¹⁷ cal
kilocalories (food Calories)
3.82929405832 × 10⁻²⁰ kcal
megacalories
3.82929405832 × 10⁻²³ Mcal
watt-hours
4.45049065 × 10⁻²⁰ Wh
megawatt-hours
4.45049065 × 10⁻²⁶ MWh
British thermal units (IT)
1.51857044347 × 10⁻¹⁹ Btu
million Btu
1.51857044347 × 10⁻²⁵ MMBtu
therms (100,000 Btu)
1.51857044347 × 10⁻²⁴ thm
quads (10¹⁵ Btu)
1.51857044347 × 10⁻³⁴ quad
electronvolts
1,000 eV
megaelectronvolts
0.001 MeV

1 keV = 4.45049065 × 10⁻²³ kWh

Show the working
  1. 1 keV = 4.45049065e-23 kWh
  2. 1 × 4.45049065e-23 = 4.45049065e-23 kWh

How to convert kiloelectronvolts to kilowatt-hours

1 keV = 4.45049065 × 10⁻²³ kWh, so multiply by 4.45049065 to go from kiloelectronvolts to kilowatt-hours. Going the other way, 1 kWh = 2.24694326681 × 10²² keV.

kWh = keV × 4.45049065
keV = kWh × 2.24694326681

Worked example:

1 keV = 4.45049065e-23 kWh
5 × 4.45049065e-23 = 2.225245325e-22 kWh

Kiloelectronvolts to kilowatt-hours table

KiloelectronvoltsKilowatt-hours
1 keV4.45049065 × 10⁻²³ kWh
2 keV8.9009813 × 10⁻²³ kWh
3 keV1.335147195 × 10⁻²² kWh
4 keV1.78019626 × 10⁻²² kWh
5 keV2.225245325 × 10⁻²² kWh
6 keV2.67029439 × 10⁻²² kWh
7 keV3.115343455 × 10⁻²² kWh
8 keV3.56039252 × 10⁻²² kWh
9 keV4.005441585 × 10⁻²² kWh
10 keV4.45049065 × 10⁻²² kWh
15 keV6.675735975 × 10⁻²² kWh
20 keV8.9009813 × 10⁻²² kWh
25 keV1.1126226625 × 10⁻²¹ kWh
30 keV1.335147195 × 10⁻²¹ kWh
40 keV1.78019626 × 10⁻²¹ kWh
50 keV2.225245325 × 10⁻²¹ kWh
75 keV3.3378679875 × 10⁻²¹ kWh
100 keV4.45049065 × 10⁻²¹ kWh
250 keV1.1126226625 × 10⁻²⁰ kWh
500 keV2.225245325 × 10⁻²⁰ kWh
1000 keV4.45049065 × 10⁻²⁰ kWh

About the units

Kiloelectronvolts (keV)
Kiloelectronvolts, a specialised unit. Definition: NIST CODATA: elementary charge (exact since the 2019 SI redefinition).
Kilowatt-hours (kWh)
Kilowatt-hours, a metric unit. Definition: BIPM SI Brochure, 9th edition (SI units, prefixes and units accepted for use with the SI).

Formula version 0.1.0Reviewed