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Joules to Kilowatt-hours converter

Convert J to kWh instantly. Type any value and get the result in kilowatt-hours. 1 J = 2.7778e-7 kWh.

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Energy›J → kWh
From
To
result below ↓
1 J=
2.7778e-7kWh
formula1 J = 2.7778e-7 kWh

Common joules → kilowatt-hours

=2.7778e-7 kWh
=5.5556e-7 kWh
=1.3889e-6 kWh
=2.7778e-6 kWh
=5.5556e-6 kWh
=1.3889e-5 kWh
=2.7778e-5 kWh
=0.000138889 kWh
=0.000277778 kWh

Need a different value? .

Convert the other way
Kilowatt-hours to Joules

How to convert joules to kilowatt-hours

To convert joules to kilowatt-hours, multiply the value by 2.7778e-7.

Formula
kWh = J × 2.7778e-7

For example:

  • →5 J = 1.3889e-6 kWh
  • →100 J = 2.7778e-5 kWh

Quick reference

  • ▸1 J = 2.7778e-7 kWh
  • ▸1 kWh = 3,600,000 J

When you need to convert J to kWh

  • ·Nutrition — converting calories to kilojoules on food labels.
  • ·Electricity bills — kWh consumption.
  • ·Heating — BTU ratings for furnaces.
  • ·Exercise — calorie burn during workouts.
  • ·Science — chemistry and physics problems.

Frequently asked

How many kilowatt-hours are in 1 joule?
One joule equals 2.7778e-7 kilowatt-hours.
How do I convert J to kWh in my head?
Multiply the value in joules by 2.7778e-7 to get kilowatt-hours.
What is the formula for joules to kilowatt-hours?
kWh = J × 2.7778e-7.
What is the reverse — how many joules in 1 kilowatt-hour?
One kilowatt-hour equals 3,600,000 joules.

Related conversions

Kilowatt-hours to Joules
1 kWh = 3,600,000 J
Joules to Kilojoules
1 J = 0.001 kJ
Joules to Calories
1 J = 0.239006 cal
Joules to Kilocalories
1 J = 0.000239006 kcal
Kilojoules to Kilowatt-hours
1 kJ = 0.000277778 kWh
Calories to Kilowatt-hours
1 cal = 1.1622e-6 kWh
Kilocalories to Kilowatt-hours
1 kcal = 0.00116222 kWh
Watt-hours to Kilowatt-hours
1 Wh = 0.001 kWh
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