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joule to kilowatt-hour

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

From J

joule

To kWh

kilowatt-hour

1 J = 2.78e-7kWh

Conversion table

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

joule (J)	→	kilowatt-hour (kWh)
0.001 J	→	2.7778e-10 kWh
0.01 J	→	2.7778e-9 kWh
0.1 J	→	2.7778e-8 kWh
0.5 J	→	1.3889e-7 kWh
1 J	→	2.7778e-7 kWh
2 J	→	5.5556e-7 kWh
5 J	→	1.3889e-6 kWh
10 J	→	2.7778e-6 kWh
100 J	→	2.7778e-5 kWh
1,000 J	→	0.000278 kWh

About the joule

SI unit of energy. 1 N·m.

About the kilowatt-hour

1000 Wh. Electricity bills.

How joule to kilowatt-hour conversion works

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

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

Reference value1 J = 2.777778e-7 kWh

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.