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kilowatt-hour to joule

Live kilowatt-hour (kWh) to joule (J) converter. Plus a 10-value reference table and FAQs.

From kWh

kilowatt-hour

To J

joule

1 kWh = 3,600,000J

Conversion table

Ten sample values from kilowatt-hour to joule. Use the converter above for arbitrary values.

kilowatt-hour (kWh)	→	joule (J)
0.001 kWh	→	3,600 J
0.01 kWh	→	36,000 J
0.1 kWh	→	360,000 J
0.5 kWh	→	1,800,000 J
1 kWh	→	3,600,000 J
2 kWh	→	7,200,000 J
5 kWh	→	18,000,000 J
10 kWh	→	36,000,000 J
100 kWh	→	360,000,000 J
1,000 kWh	→	3,600,000,000 J

About the kilowatt-hour

1000 Wh. Electricity bills.

About the joule

SI unit of energy. 1 N·m.

How kilowatt-hour to joule conversion works

Both units belong to Energy. Unitbox first expresses the input in the category reference unit (J), then expresses that same quantity in joule.

The right unit depends on the convention used by your industry, country, instrument, or source document.

Reference value1 kWh = 3,600,000 J

CalculationBrowser-side, using Unitbox's shared unit data

Review noteFor safety-critical work, verify against the governing standard or instrument manual.

Unit definitions and conversion factors are maintained in the Unitbox methodology. Last reviewed with the current conversion dataset.

Frequently asked questions

Frequently Asked Questions

How do I convert kilowatt-hour to joule?

Multiply the kilowatt-hour value by 3,600,000 to get it in joule. For example, 10 kWh = 36,000,000 J.

What is 1 kWh in J?

1 kWh = 3,600,000 J.

What is 100 kWh in J?

100 kWh = 360,000,000 J.

What is the formula?

Linear: multiply by 3,600,000 (the unit factor ratio).

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Convert the other direction

Use the reverse converter: joule → kilowatt-hour

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Energy has 10 units.

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