Conversion reference
Formula: Wh = J x 0.0002777778.
Joules to Watt-hours Converter
Convert Joules (J) to Watt-hours (Wh). Change either field to update the other value instantly.
J and Wh converter
This page converts energy units directly in your browser.
J to Wh conversion table
| Joules | Watt-hours |
|---|
J to Wh formula
About J
Joules are used in energy conversions. Enter a J value above to calculate Wh instantly.
About Wh
Watt-hours are the target unit on this page. The table below gives common reference values for quick comparison.
Convert other units to Wh
These pages use Wh as the target unit.