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Megaelectronvolts to Megacalories Converter

Convert megaelectronvolts (MeV) to megacalories (Mcal), 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
3.82929405832 × 10⁻²⁰ Mcal
joules (watt-seconds)
1.602176634 × 10⁻¹³ J
kilojoules
1.602176634 × 10⁻¹⁶ kJ
megajoules
1.602176634 × 10⁻¹⁹ MJ
gigajoules
1.602176634 × 10⁻²² GJ
calories (thermochemical)
3.82929405832 × 10⁻¹⁴ cal
kilocalories (food Calories)
3.82929405832 × 10⁻¹⁷ kcal
watt-hours
4.45049065 × 10⁻¹⁷ Wh
kilowatt-hours
4.45049065 × 10⁻²⁰ kWh
megawatt-hours
4.45049065 × 10⁻²³ MWh
British thermal units (IT)
1.51857044347 × 10⁻¹⁶ Btu
million Btu
1.51857044347 × 10⁻²² MMBtu
therms (100,000 Btu)
1.51857044347 × 10⁻²¹ thm
quads (10¹⁵ Btu)
1.51857044347 × 10⁻³¹ quad
electronvolts
1,000,000 eV
kiloelectronvolts
1,000 keV

1 MeV = 3.82929405832 × 10⁻²⁰ Mcal

Show the working
  1. 1 MeV = 3.82929405832e-20 Mcal
  2. 1 × 3.82929405832e-20 = 3.82929405832e-20 Mcal

How to convert megaelectronvolts to megacalories

1 MeV = 3.82929405832 × 10⁻²⁰ Mcal, so multiply by 3.82929405832 to go from megaelectronvolts to megacalories. Going the other way, 1 Mcal = 2.61144739675 × 10¹⁹ MeV.

Mcal = MeV × 3.82929405832
MeV = Mcal × 2.61144739675

Worked example:

1 MeV = 3.82929405832e-20 Mcal
5 × 3.82929405832e-20 = 1.91464702916e-19 Mcal

Megaelectronvolts to megacalories table

MegaelectronvoltsMegacalories
1 MeV3.82929405832 × 10⁻²⁰ Mcal
2 MeV7.65858811663 × 10⁻²⁰ Mcal
3 MeV1.1487882175 × 10⁻¹⁹ Mcal
4 MeV1.53171762333 × 10⁻¹⁹ Mcal
5 MeV1.91464702916 × 10⁻¹⁹ Mcal
6 MeV2.29757643499 × 10⁻¹⁹ Mcal
7 MeV2.68050584082 × 10⁻¹⁹ Mcal
8 MeV3.06343524665 × 10⁻¹⁹ Mcal
9 MeV3.44636465249 × 10⁻¹⁹ Mcal
10 MeV3.82929405832 × 10⁻¹⁹ Mcal
15 MeV5.74394108748 × 10⁻¹⁹ Mcal
20 MeV7.65858811663 × 10⁻¹⁹ Mcal
25 MeV9.57323514579 × 10⁻¹⁹ Mcal
30 MeV1.1487882175 × 10⁻¹⁸ Mcal
40 MeV1.53171762333 × 10⁻¹⁸ Mcal
50 MeV1.91464702916 × 10⁻¹⁸ Mcal
75 MeV2.87197054374 × 10⁻¹⁸ Mcal
100 MeV3.82929405832 × 10⁻¹⁸ Mcal
250 MeV9.57323514579 × 10⁻¹⁸ Mcal
500 MeV1.91464702916 × 10⁻¹⁷ Mcal
1000 MeV3.82929405832 × 10⁻¹⁷ Mcal

About the units

Megaelectronvolts (MeV)
Megaelectronvolts, a specialised unit. Definition: NIST CODATA: elementary charge (exact since the 2019 SI redefinition).
Megacalories (Mcal)
Megacalories, a specialised unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.

Formula version 0.1.0Reviewed