Kiloelectron Volt to Electron Volt Converter

Energy Converter

27 units available

Decimals:

From

To

1,000

1 keV = 1,000 eV

Formula:

eV = keV × 1,000

With your value: 1 keV = 1,000 eV

How big is that?

Everyday references on a logarithmic scale, all expressed in kiloelectron volt so you can sanity-check the result.

Your value1.00 keV

Heartbeat (6.2e+15× your value)6.24e+15 keV

AA battery charge (6.2e+19× your value)6.24e+19 keV

Slice of bread (1.7e+21× your value)1.75e+21 keV

Daily food intake (5.2e+22× your value)5.24e+22 keV

Litre of petrol (2.1e+23× your value)2.13e+23 keV

Other Kiloelectron Volt to Electron Volt conversions

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

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

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

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.

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

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

How to Convert Kiloelectron Volt to Electron Volt

To convert from Kiloelectron Volt (keV) to Electron Volt (eV), multiply the value by 1,000.

Formula: eV = keV × 1,000

Reverse: keV = eV × 0.001

Step-by-Step Example

Start with your value in Kiloelectron Volt. For example: 5 keV
Multiply by the conversion factor: 5 x 1,000
The result is: 5,000 eV

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.

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.

Frequently Asked Questions

How many Electron Volt are in 1 Kiloelectron Volt?

There are exactly 1,000 Electron Volt in 1 Kiloelectron Volt. This means the conversion factor from Kiloelectron Volt to Electron Volt is 1,000.

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

The formula to convert Kiloelectron Volt to Electron Volt is: eV = keV × 1,000. For example, to convert 10 Kiloelectron Volt to Electron Volt, you would multiply 10 by 1,000.

What is a Kiloelectron Volt?