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kilojoule to kilowatt-hour

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

From kJ

kilojoule

To kWh

kilowatt-hour

1 kJ = 0.0003kWh

Conversion table

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

kilojoule (kJ)	→	kilowatt-hour (kWh)
0.001 kJ	→	2.7778e-7 kWh
0.01 kJ	→	2.7778e-6 kWh
0.1 kJ	→	2.7778e-5 kWh
0.5 kJ	→	0.000139 kWh
1 kJ	→	0.000278 kWh
2 kJ	→	0.000556 kWh
5 kJ	→	0.001389 kWh
10 kJ	→	0.002778 kWh
100 kJ	→	0.027778 kWh
1,000 kJ	→	0.277778 kWh

About the kilojoule

1000 J. Food labels in some countries.

About the kilowatt-hour

1000 Wh. Electricity bills.

How kilojoule 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 kJ = 0.00027778 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.