---
title: "Watt-hours to Kilocalories — Wh to kcal converter"
description: "1 watt-hour = 0.86042 kilocalories. Convert watt-hours to kilocalories with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/watt-hours-to-kcal/
site: "At One Place"
---

# Watt-hours to kilocalories

**1 watt-hour in kilocalories: 1 Wh = 0.86042 kcal**

kcal = Wh × 0.8604206501

To convert watt-hours to kilocalories, multiply by 0.8604206501. The table below gives the values people look up most often, and the converter works for any number.

## Watt-hours to kilocalories table

*Common watt-hour values converted to kilocalories.*

| Watt-hours | Kilocalories |
| --- | --- |
| 1 Wh | 0.86042 |
| 2 Wh | 1.720841 |
| 3 Wh | 2.581262 |
| 4 Wh | 3.441683 |
| 5 Wh | 4.302103 |
| 10 Wh | 8.604207 |
| 15 Wh | 12.90631 |
| 20 Wh | 17.20841 |
| 25 Wh | 21.51052 |
| 30 Wh | 25.81262 |
| 40 Wh | 34.41683 |
| 50 Wh | 43.02103 |
| 75 Wh | 64.53155 |
| 100 Wh | 86.04207 |
| 250 Wh | 215.1052 |
| 500 Wh | 430.2103 |
| 1,000 Wh | 860.4207 |

## How the conversion works

The relationship is kcal = Wh × 0.8604206501. 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 watt-hour?

One watt-hour equals 0.86042 kilocalories. kcal = Wh × 0.8604206501.

### How do you convert watt-hours to kilocalories?

Use kcal = Wh × 0.8604206501. So 10 Wh is 8.604207 kcal.

### How many watt-hours are in one kilocalorie?

One kilocalorie equals 1.162222 watt-hours, 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 Watt-hours](https://atoneplace.net/convert/kcal-to-watt-hours/)
- [Watt-hours to Joules](https://atoneplace.net/convert/watt-hours-to-joules/)
- [Watt-hours to Kilojoules](https://atoneplace.net/convert/watt-hours-to-kilojoules/)
- [Watt-hours to Kilowatt-hours](https://atoneplace.net/convert/watt-hours-to-kwh/)
- [Watt-hours to British thermal units](https://atoneplace.net/convert/watt-hours-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/)