Kilojoule to Kilowatt-hour
1 kJ = 0.00027778 kWh
Convert Kilojoule (kJ) to Kilowatt-hour (kWh) with engineering-grade precision. Instant results, formula, and reference table below.
1 Kilojoule ≈0.0002777778 Kilowatt-hour
How to convert Kilojoule to Kilowatt-hour (kJ to kWh)
Converting Kilojoules to Kilowatt-hours is critical for developers working with international data standards or scientific applications. This tool performs the calculation entirely on your client (browser) using JavaScript/WASM, ensuring zero latency and maximum privacy.
The Formula
1 kJ = 0.000277778 kWh
Calculation Example
Let's say you want to convert 5 kJ to kWh:
- Input: 5 kJ
- Calculation: 5 × 0.000277778
- Result: 0.0014 kWh
About the Kilojoule to Kilowatt-hour conversion
The conversion factor from Kilojoule (kJ) to Kilowatt-hour (kWh) is 0.00027778, meaning 1 kJ = 0.00027778 kWh and inversely 1 kWh = 3600.00 kJ. That makes the Kilowatt-hour the larger of the two units in the energy category, where the SI base unit is the joule. Every ratio here is derived from the SI/international definition rather than a rounded approximation, so results are stable across repeated conversions.
Need the reverse? Use the Kilowatt-hour to Kilojoule converter.
Frequently Asked Questions
How do I convert Kilojoule to Kilowatt-hour?
To convert Kilojoule to Kilowatt-hour, you need to multiply the kJ value by 0.000277778.
What is the formula for kJ to kWh?
The simple formula is: kWh = kJ × 0.000277778.
Which is bigger: Kilojoule or Kilowatt-hour?
A Kilowatt-hour is bigger. One Kilowatt-hour is equal to approx 3600.0000 Kilojoules.
How many Kilojoules are in one Kilowatt-hour?
There are approximately 3600.00 Kilojoules in one Kilowatt-hour.
Quick Conversion Table
| kJ | kWh |
|---|---|
| 1 | 0.0003 |
| 5 | 0.0014 |
| 10 | 0.0028 |
| 20 | 0.0056 |
| 50 | 0.0139 |
| 100 | 0.0278 |