Common Converters

Convert Joules to Watt-hours

Use our accurate converter to change joules into watt-hours. This tool is simple to use and works instantly.

How to Calculate

To change joules to watt-hours, you just need to know the conversion factor.

Rule: 1 Joules = 0.0002777778 Watt-hours

Joules to Watt-hours
Pre-defined calculator for direct joules to watt-hours conversion.
Joules (J)
0
Watt-hours (Wh)
Formula: 1 Joules = 0.00027778 Watt-hours

Unit Information

About Joules

Definition: The joule is the main unit for measuring energy.

History: It is named after a scientist who studied heat and motion.

Where it is used: Standard unit used in science and engineering to track work.

Joules to Watt-hours Conversion Table

Joules [j]Watt-hours [wh]
0.01 j0.0000027778 wh
0.1 j0.0000277778 wh
1 j0.0002777778 wh
2 j0.0005555556 wh
3 j0.0008333333 wh
5 j0.0013888889 wh
10 j0.0027777778 wh
20 j0.0055555556 wh
50 j0.0138888889 wh
100 j0.0277777778 wh
1000 j0.2777777778 wh

How to Convert Joules to Watt-hours

Calculation: To convert joules to watt-hours, multiply the value by the conversion factor (0.0002777778).

Example: convert 15 j to wh:
15 j = 15 × 0.0002777778 wh = 0.0041666667 wh

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