---
title: "Kilocalories to Electronvolts — kcal to eV converter"
description: "1 kilocalorie = 2.6114474 × 10^22 electronvolts. Conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/kcal-to-electronvolts/
site: "At One Place"
---

# Kilocalories to electronvolts

**1 kilocalorie in electronvolts: 1 kcal = 2.6114474 × 10^22 eV**

eV = kcal × 2.611447397 × 10^22

To convert kilocalories to electronvolts, multiply by 2.611447397 × 10^22. The table below gives the values people look up most often, and the converter works for any number.

## Kilocalories to electronvolts table

*Common kilocalorie values converted to electronvolts.*

| Kilocalories | Electronvolts |
| --- | --- |
| 1 kcal | 2.6114474 × 10^22 |
| 2 kcal | 5.2228948 × 10^22 |
| 3 kcal | 7.8343422 × 10^22 |
| 4 kcal | 1.044579 × 10^23 |
| 5 kcal | 1.3057237 × 10^23 |
| 10 kcal | 2.6114474 × 10^23 |
| 15 kcal | 3.9171711 × 10^23 |
| 20 kcal | 5.2228948 × 10^23 |
| 25 kcal | 6.5286185 × 10^23 |
| 30 kcal | 7.8343422 × 10^23 |
| 40 kcal | 1.044579 × 10^24 |
| 50 kcal | 1.3057237 × 10^24 |
| 75 kcal | 1.9585855 × 10^24 |
| 100 kcal | 2.6114474 × 10^24 |
| 250 kcal | 6.5286185 × 10^24 |
| 500 kcal | 1.3057237 × 10^25 |
| 1,000 kcal | 2.6114474 × 10^25 |

## How the conversion works

The relationship is eV = kcal × 2.611447397 × 10^22. Both units measure energy, so the conversion is a fixed factor that never changes.

> Kilocalorie: The "calorie" on food labels.

## Common questions

### How many electronvolts are in one kilocalorie?

One kilocalorie equals 2.6114474 × 10^22 electronvolts. eV = kcal × 2.611447397 × 10^22.

### How do you convert kilocalories to electronvolts?

Use eV = kcal × 2.611447397 × 10^22. So 10 kcal is 2.6114474 × 10^23 eV.

### How many kilocalories are in one electronvolt?

One electronvolt equals 3.829 × 10^-23 kilocalories, which is the reverse of the conversion above.

### Is there more than one kind of kilocalorie?

The "calorie" on food labels.

## Related pages

- [Electronvolts to Kilocalories](https://atoneplace.net/convert/electronvolts-to-kcal/)
- [Kilocalories to Joules](https://atoneplace.net/convert/kcal-to-joules/)
- [Kilocalories to Kilojoules](https://atoneplace.net/convert/kcal-to-kilojoules/)
- [Kilocalories to Watt-hours](https://atoneplace.net/convert/kcal-to-watt-hours/)
- [Kilocalories to Kilowatt-hours](https://atoneplace.net/convert/kcal-to-kwh/)
- [Kilocalories to British thermal units](https://atoneplace.net/convert/kcal-to-btu/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)