Joules to Watt-hours

Convert joules (J) to watt-hours (Wh) with formulas, examples, and conversion tables.

Joules (J)

Watt-hours (Wh)

1 J = 0.0003 Wh

Full precision:0.00027778 Wh

Step-by-Step Solution

To convert 1 joules to watt-hours, we divide by 3600 because one watt-hour equals exactly 3600 joules.

1 watt-hour = 3600 joules

Since there are 3600 joules in every watt-hour, we divide our value by this factor:

1 ÷ 3600 = 0.0003 watt-hours

So 1 joules = 0.0003 watt-hours.

✓Quick check: 0.0003 × 3600 = 1 joules

How to Convert Joules to Watt-hours

To convert joules to watt-hours, divide the value by 3600.

Watt-hours = Joules ÷ 3600

1 watt-hour = 3600 joules

Tip: To convert watt-hours back to joules, multiply by 3600.

Example 1: 1 J = 0.0003 Wh
1 ÷ 3600 = 0.0003

Example 2: 5 J = 0.0014 Wh
5 ÷ 3600 = 0.0014

Example 3: 10 J = 0.0028 Wh
10 ÷ 3600 = 0.0028