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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

換算表

10 個示例值，從joule到kilowatt-hour。任意值請用上方換算器。

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

關於joule

SI unit of energy. 1 N·m.

關於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.

常見問題

Frequently Asked Questions

How do I convert joule to kilowatt-hour?

Multiply the joule value by 2.7778e-7 to get it in kilowatt-hour. For example, 10 J = 2.78e-6 kWh.

What is 1 J in kWh?

1 J = 2.7778e-7 kWh.

What is 100 J in kWh?

100 J = 2.78e-5 kWh.

What is the formula?

Linear: multiply by 2.7778e-7 (the unit factor ratio).

繼續探索

Convert the other direction

Use the reverse converter: kilowatt-hour → joule

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Energy has 10 units.

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