Watt hour to Joule

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Result

3600

J

Conversion rate: 1 Wh = 3600 J

Showing up to 4 decimal

How it works

The converter uses exact SI-based factors (e.g., 1 foot = 0.3048 meters, 1 inch = 0.0254 meters).

Formula: joules = watt hour × 3600

Results show between 0 and 8 decimal places and hide trailing zeros for readability.

Conversion Table

Watt hour Joule
1 Wh 3600 J
10 Wh 36000 J
100 Wh 360000 J
1000 Wh 3600000 J
1000000 Wh 3600000000 J

History

Watt Hour (Wh)

The watt-hour, symbolized as Wh, represents the energy consumed when one watt of power is used for one hour, equivalent to 3,600 joules. Introduced with the spread of electrical systems in the late 19th century, the watt-hour is a practical unit for measuring smaller-scale electrical consumption, such as that of batteries and small devices. It is widely used in electronics, computing, and renewable energy storage. While large-scale power use is measured in kilowatt hours, watt-hours provide fine-grained detail for portable and household applications.

Joule (J)

The joule (J), recognized as the SI unit of energy, is named in honor of physicist James Prescott Joule. It represents the amount of work performed when a force of one newton moves an object over a distance of one meter. The joule is widely used in physics, thermodynamics, and engineering, providing a standardized way to quantify energy across mechanical, electrical, and thermal processes. Its implementation has enabled researchers and professionals to measure and compare energy values with accuracy and consistency around the globe.

Other Relevant Conversions

J → kJ J → cal J → kcal J → Wh J → kWh J → eV J → BTU kJ → J kJ → cal kJ → kcal kJ → Wh kJ → kWh kJ → eV kJ → BTU cal → J cal → kJ cal → kcal cal → Wh cal → kWh cal → eV cal → BTU kcal → J kcal → kJ kcal → cal kcal → Wh kcal → kWh kcal → eV kcal → BTU Wh → J Wh → kJ Wh → cal Wh → kcal Wh → kWh Wh → eV Wh → BTU kWh → J kWh → kJ kWh → cal kWh → kcal kWh → Wh kWh → eV kWh → BTU eV → J eV → kJ eV → cal eV → kcal eV → Wh eV → kWh eV → BTU BTU → J BTU → kJ BTU → cal BTU → kcal BTU → Wh BTU → kWh BTU → eV