Kilowatt-hour to Joule
1 kWh = 3600000.00 J
Convert Kilowatt-hour (kWh) to Joule (J) with engineering-grade precision. Instant results, formula, and reference table below.
1 Kilowatt-hour ≈3600000 Joule
How to convert Kilowatt-hour to Joule (kWh to J)
Converting Kilowatt-hours to Joules 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 kWh = 3.60000e+6 J
Calculation Example
Let's say you want to convert 5 kWh to J:
- Input: 5 kWh
- Calculation: 5 × 3.60000e+6
- Result: 18000000.0000 J
About the Kilowatt-hour to Joule conversion
The conversion factor from Kilowatt-hour (kWh) to Joule (J) is 3600000.00, meaning 1 kWh = 3600000.00 J and inversely 1 J = 2.7778e-7 kWh. 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 Joule to Kilowatt-hour converter.
Frequently Asked Questions
How do I convert Kilowatt-hour to Joule?
To convert Kilowatt-hour to Joule, you need to multiply the kWh value by 3.60000e+6.
What is the formula for kWh to J?
The simple formula is: J = kWh × 3.60000e+6.
Which is bigger: Kilowatt-hour or Joule?
A Kilowatt-hour is bigger. One Kilowatt-hour is equal to approx 3600000.0000 Joules.
How many Kilowatt-hours are in one Joule?
There are approximately 2.77778e-7 Kilowatt-hours in one Joule.
Quick Conversion Table
| kWh | J |
|---|---|
| 1 | 3600000.0000 |
| 5 | 18000000.0000 |
| 10 | 36000000.0000 |
| 20 | 72000000.0000 |
| 50 | 180000000.0000 |
| 100 | 360000000.0000 |