Electron Volt to Kiloelectron Volt Converter

Energy Converter

27 units available

Decimals:

From

To

0.001

1 eV = 0.001 keV

Formula:

keV = eV × 0.001

With your value: 1 eV = 0.001 keV

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 Kiloelectron Volt conversions

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

Electron Volt to Kiloelectron Volt Conversion Table

Electron Volt (eV)	Kiloelectron Volt (keV)
0.5	0.0005
1	0.001
2	0.002
5	0.005
10	0.01
15	0.015
20	0.02
25	0.025
50	0.05
100	0.1
250	0.25
500	0.5
1000	1

Kiloelectron Volt to Electron Volt Conversion Table

Kiloelectron Volt (keV)	Electron Volt (eV)
0.5	500
1	1,000
2	2,000
5	5,000
10	10,000
15	15,000
20	20,000
25	25,000
50	50,000
100	100,000
250	250,000
500	500,000
1000	1,000,000

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

Kiloelectron Volt (keV)

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 Kiloelectron Volt

To convert from Electron Volt (eV) to Kiloelectron Volt (keV), multiply the value by 0.001.

Formula: keV = eV × 0.001

Reverse: eV = keV × 1,000

Step-by-Step Example

Start with your value in Electron Volt. For example: 5 eV
Multiply by the conversion factor: 5 x 0.001
The result is: 0.005 keV

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 Kiloelectron Volt

The kiloelectron volt (keV) is a unit of energy and work. One kiloelectron volt equals 1.602177 × 10^-16 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 Kiloelectron Volt are in 1 Electron Volt?

There are exactly 0.001 Kiloelectron Volt in 1 Electron Volt. This means the conversion factor from Electron Volt to Kiloelectron Volt is 0.001.

What is the formula to convert Electron Volt to Kiloelectron Volt?

The formula to convert Electron Volt to Kiloelectron Volt is: keV = eV × 0.001. For example, to convert 10 Electron Volt to Kiloelectron Volt, you would multiply 10 by 0.001.

What is a Electron Volt?