---
title: "Kilojoules to Kilocalories — kJ to kcal converter"
description: "1 kilojoule = 0.23901 kilocalories. Convert kilojoules to kilocalories with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/kilojoules-to-kcal/
site: "At One Place"
---

# Kilojoules to kilocalories

**1 kilojoule in kilocalories: 1 kJ = 0.23901 kcal**

kcal = kJ × 0.2390057361

To convert kilojoules to kilocalories, multiply by 0.2390057361. The table below gives the values people look up most often, and the converter works for any number.

## Kilojoules to kilocalories table

*Common kilojoule values converted to kilocalories.*

| Kilojoules | Kilocalories |
| --- | --- |
| 1 kJ | 0.23901 |
| 2 kJ | 0.47801 |
| 3 kJ | 0.71702 |
| 4 kJ | 0.95602 |
| 5 kJ | 1.195029 |
| 10 kJ | 2.390057 |
| 15 kJ | 3.585086 |
| 20 kJ | 4.780115 |
| 25 kJ | 5.975143 |
| 30 kJ | 7.170172 |
| 40 kJ | 9.560229 |
| 50 kJ | 11.95029 |
| 75 kJ | 17.92543 |
| 100 kJ | 23.90057 |
| 250 kJ | 59.75143 |
| 500 kJ | 119.5029 |
| 1,000 kJ | 239.0057 |

## How the conversion works

The relationship is kcal = kJ × 0.2390057361. Both units measure energy, so the conversion is a fixed factor that never changes.

> Kilocalorie: The "calorie" on food labels.

## Common questions

### How many kilocalories are in one kilojoule?

One kilojoule equals 0.23901 kilocalories. kcal = kJ × 0.2390057361.

### How do you convert kilojoules to kilocalories?

Use kcal = kJ × 0.2390057361. So 10 kJ is 2.390057 kcal.

### How many kilojoules are in one kilocalorie?

One kilocalorie equals 4.184 kilojoules, which is the reverse of the conversion above.

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

The "calorie" on food labels.

## Related pages

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