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Calories to Megaelectronvolts Converter

Convert calories to megaelectronvolts (MeV) for energy unit conversion in nuclear physics.

What this tool does

Convert calories to megaelectronvolts (MeV) for energy unit conversion in nuclear physics. Type an amount in calories (thermochemical), choose the units, and the tool converts it to megaelectronvolts. It offers 6 energy units and also shows the same amount in the others.

Inputs

  • Value: A number.
  • From: Choose one: Calorie (thermochemical), Joule, Electronvolt, Kiloelectronvolt, Megaelectronvolt, Gigaelectronvolt. Starts as Calorie (thermochemical).
  • To: Choose one of the same 6 units as "From". Starts as Megaelectronvolt.

How to use

  1. Enter the amount you want to convert.
  2. Choose the unit to convert from and the unit to convert to.
  3. Read the result: the converted amount and the same amount in the other units. It appears once every required field has a valid value.

Worked examples

Conversions from calories (thermochemical) to megaelectronvolts:

  • 1 cal (th) ≈ 2.61144739675 × 10¹³ MeV
  • 5 cal (th) ≈ 1.30572369838 × 10¹⁴ MeV
  • 10 cal (th) ≈ 2.61144739675 × 10¹⁴ MeV
  • 50 cal (th) ≈ 1.30572369838 × 10¹⁵ MeV
  • 100 cal (th) ≈ 2.61144739675 × 10¹⁵ MeV

Multiply the number of calories (thermochemical) by about 2.61144739675 × 10¹³ to get megaelectronvolts. The factor follows from exact definitions. It has more digits than fit here, so it is shown rounded.

Sources: Calorie (thermochemical): NIST SP 811 (2008), Appendix B.8. Megaelectronvolt: SI Brochure, 9th edition (2019).

Limitations

  • Converts units of energy only. It does not work out energy from power, time, voltage or charge.

FAQs

Q: How many megaelectronvolts are in one calorie (thermochemical)?
A: One calorie (thermochemical) is about 2.6114474 × 10¹³ megaelectronvolts. Change the value to convert any amount; the other units are listed below the result.
Q: Which definition of the units does this page use?
A: Calories here are thermochemical calories (1 cal = 4.184 J exactly), the definition commonly used in chemistry and nutrition. The International Table calorie (4.1868 J) is slightly larger.
Q: Can I convert from megaelectronvolts to calories (thermochemical)?
A: Yes. Choose megaelectronvolt in the From box and calorie (thermochemical) in the To box. One megaelectronvolt is about 3.8292941 × 10⁻¹⁴ calories (thermochemical).

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