kWh to eV Converter

How to convert kilowatt-hours to electronvolts

FormulaeV = kWh × 2.246943267×10²⁵

Multiply the value in kilowatt-hours by 2.246943267×10²⁵. To go the other way, multiply by 4.45049065×10⁻²⁶ (or divide by 2.246943267×10²⁵).

A kilowatt-hour is larger than an electronvolt: one kilowatt-hour contains 2.246943267×10²⁵ electronvolts.

Worked examples

1 kilowatt-hour1 kWh × 2.246943267×10²⁵ = 2.246943267×10²⁵ eV
5 kilowatt-hours5 kWh × 2.246943267×10²⁵ = 1.123471633×10²⁶ eV
10 kilowatt-hours10 kWh × 2.246943267×10²⁵ = 2.246943267×10²⁶ eV
20 kilowatt-hours20 kWh × 2.246943267×10²⁵ = 4.493886534×10²⁶ eV
100 kilowatt-hours100 kWh × 2.246943267×10²⁵ = 2.246943267×10²⁷ eV

Kilowatt-hours to electronvolts conversion table

Values are calculated by the conversion engine and rounded to 8 significant figures.

Kilowatt-hours to electronvolts: 0.1–10 kWh
Kilowatt-hours (kWh)	Electronvolts (eV)
0.1 kWh	2.2469433×10²⁴ eV
0.25 kWh	5.6173582×10²⁴ eV
0.5 kWh	1.1234716×10²⁵ eV
1 kWh	2.2469433×10²⁵ eV
2 kWh	4.4938865×10²⁵ eV
3 kWh	6.7408298×10²⁵ eV
4 kWh	8.9877731×10²⁵ eV
5 kWh	1.1234716×10²⁶ eV
6 kWh	1.348166×10²⁶ eV
7 kWh	1.5728603×10²⁶ eV
8 kWh	1.7975546×10²⁶ eV
9 kWh	2.0222489×10²⁶ eV
10 kWh	2.2469433×10²⁶ eV

Kilowatt-hours to electronvolts: 12–1,000 kWh
Kilowatt-hours (kWh)	Electronvolts (eV)
12 kWh	2.6963319×10²⁶ eV
15 kWh	3.3704149×10²⁶ eV
20 kWh	4.4938865×10²⁶ eV
25 kWh	5.6173582×10²⁶ eV
30 kWh	6.7408298×10²⁶ eV
40 kWh	8.9877731×10²⁶ eV
50 kWh	1.1234716×10²⁷ eV
75 kWh	1.6852075×10²⁷ eV
100 kWh	2.2469433×10²⁷ eV
250 kWh	5.6173582×10²⁷ eV
500 kWh	1.1234716×10²⁸ eV
1,000 kWh	2.2469433×10²⁸ eV

About the units

Kilowatt-hour (kWh)

Exactly 3.6 MJ. The unit on electricity bills; running a 1,000 W heater for an hour uses 1 kWh. One kilowatt-hour equals 3,600,000 joules (J).

Electronvolt (eV)

The energy an electron gains across one volt: exactly 1.602176634 × 10⁻¹⁹ J. One electronvolt equals 1.602176634×10⁻¹⁹ joules (J).

Frequently asked questions

How many electronvolts are in one kilowatt-hour?

There are 2.246943267×10²⁵ electronvolts in one kilowatt-hour, and this value is exact by definition.

How do I convert kilowatt-hours to electronvolts?

Multiply the number of kilowatt-hours by 2.246943267×10²⁵. For example, 10 kWh × 2.246943267×10²⁵ = 2.246943267×10²⁶ eV.

How many kilowatt-hours are in one electronvolt?

One electronvolt equals 4.45049065×10⁻²⁶ kilowatt-hours. That is the reverse factor, 1 ÷ 2.246943267×10²⁵.

What is 10 kilowatt-hours in electronvolts?

10 kWh = 2.246943267×10²⁶ eV.

Is this kWh to eV converter accurate?

Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.