ZU
Zippy Units By Whiteleaf

Convert Joule to Watt Hour

Instantly convert J to Wh with our free online energy converter. Get accurate results with the formula and examples below.

Formula: Wh = J × 2.7778e-4
You can also press the arrow to select other units to convert.
10(J)Jouleis equal to
0(Wh)Watt Hour
1 J =2.777778e-4 Wh
1 Wh =3600 J
Intelligent Unit Converter

Context-aware • Smart validation • Visual comparisons • Batch processing

You have 3 free AI conversions left today!Sign in for more conversions and advanced features.

Try science examples:

How to Convert Joule to Watt Hour

Converting between Joule (J) and Watt Hour (Wh) is a common energy conversion used in science, engineering, and everyday calculations. Our free online converter makes this conversion quick and accurate.

Conversion Formula

Wh = J × 2.7778e-4

How to Convert Step by Step

  1. Start with your value in Joule (J)
  2. Apply the conversion formula: Wh = J × 2.7778e-4
  3. The result gives you the equivalent value in Watt Hour (Wh)

Example Conversion

Let's convert 100 J to Watt Hour:

100 J = 0.0277777778 Wh

This means that 100 Joule is equal to approximately 0.0277777778 Watt Hour.

When to Use This Conversion

The conversion from J to Wh is frequently used in:

  • Scientific research and laboratory calculations
  • Engineering and technical applications
  • Academic studies and homework problems
  • Professional measurements and specifications
  • International communication requiring unit standardization

Note: Our converter provides results accurate to 10 decimal places. For most practical applications, you can round the result to 2-4 decimal places.

Frequently Asked Questions

Reverse Conversion

Wh JConvert →
← Back to Energy Converter