---
title: "Watt-hours to Kilowatt-hours — Wh to kWh converter"
description: "1 watt-hour = 0.001 kilowatt-hours. Convert watt-hours to kilowatt-hours with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/watt-hours-to-kwh/
site: "At One Place"
---

# Watt-hours to kilowatt-hours

**1 watt-hour in kilowatt-hours: 1 Wh = 0.001 kWh**

kWh = Wh × 0.001

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

## Watt-hours to kilowatt-hours table

*Common watt-hour values converted to kilowatt-hours.*

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

## How the conversion works

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

## Common questions

### How many kilowatt-hours are in one watt-hour?

One watt-hour equals 0.001 kilowatt-hours. kWh = Wh × 0.001.

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

Use kWh = Wh × 0.001. So 10 Wh is 0.01 kWh.

### How many watt-hours are in one kilowatt-hour?

One kilowatt-hour equals 1,000 watt-hours, which is the reverse of the conversion above.

## Related pages

- [Kilowatt-hours to Watt-hours](https://atoneplace.net/convert/kwh-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 Kilocalories](https://atoneplace.net/convert/watt-hours-to-kcal/)
- [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/)