---
title: "Calories to Kilocalories — cal to kcal converter"
description: "1 calorie = 0.001 kilocalories. Convert calories to kilocalories with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/calories-to-kcal/
site: "At One Place"
---

# Calories to kilocalories

**1 calorie in kilocalories: 1 cal = 0.001 kcal**

kcal = cal × 0.001

To convert calories to kilocalories, multiply by 0.001. The table below gives the values people look up most often, and the converter works for any number.

## Calories to kilocalories table

*Common calorie values converted to kilocalories.*

| Calories | Kilocalories |
| --- | --- |
| 1 cal | 0.001 |
| 2 cal | 0.002 |
| 3 cal | 0.003 |
| 4 cal | 0.004 |
| 5 cal | 0.005 |
| 10 cal | 0.01 |
| 15 cal | 0.015 |
| 20 cal | 0.02 |
| 25 cal | 0.025 |
| 30 cal | 0.03 |
| 40 cal | 0.04 |
| 50 cal | 0.05 |
| 75 cal | 0.075 |
| 100 cal | 0.1 |
| 250 cal | 0.25 |
| 500 cal | 0.5 |
| 1,000 cal | 1 |

## How the conversion works

The relationship is kcal = cal × 0.001. Both units measure energy, so the conversion is a fixed factor that never changes.

> Calorie: Thermochemical (small) calorie.

> Kilocalorie: The "calorie" on food labels.

## Common questions

### How many kilocalories are in one calorie?

One calorie equals 0.001 kilocalories. kcal = cal × 0.001.

### How do you convert calories to kilocalories?

Use kcal = cal × 0.001. So 10 cal is 0.01 kcal.

### How many calories are in one kilocalorie?

One kilocalorie equals 1,000 calories, which is the reverse of the conversion above.

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

Thermochemical (small) calorie. The "calorie" on food labels.

## Related pages

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