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Kiloelectronvolts to Megaelectronvolts Converter

Convert kiloelectronvolts (keV) to megaelectronvolts (MeV), 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
0.001 MeV
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
kilowatt-hours
4.45049065 × 10⁻²³ kWh
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

1 keV = 0.001 MeV

Show the working
  1. 1 keV = 0.001 MeV
  2. 1 × 0.001 = 0.001 MeV

How to convert kiloelectronvolts to megaelectronvolts

1 keV = 0.001 MeV, so multiply by 0.001 to go from kiloelectronvolts to megaelectronvolts. Going the other way, 1 MeV = 1,000 keV.

MeV = keV × 0.001
keV = MeV × 1,000

Worked example:

1 keV = 0.001 MeV
5 × 0.001 = 0.005 MeV

Kiloelectronvolts to megaelectronvolts table

KiloelectronvoltsMegaelectronvolts
1 keV0.001 MeV
2 keV0.002 MeV
3 keV0.003 MeV
4 keV0.004 MeV
5 keV0.005 MeV
6 keV0.006 MeV
7 keV0.007 MeV
8 keV0.008 MeV
9 keV0.009 MeV
10 keV0.01 MeV
15 keV0.015 MeV
20 keV0.02 MeV
25 keV0.025 MeV
30 keV0.03 MeV
40 keV0.04 MeV
50 keV0.05 MeV
75 keV0.075 MeV
100 keV0.1 MeV
250 keV0.25 MeV
500 keV0.5 MeV
1000 keV1 MeV

About the units

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

Formula version 0.1.0Reviewed