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Kilowatt-hours to Joules converter

Convert kWh to J instantly. Type any value and get the result in joules. 1 kWh = 3,600,000 J.

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Energy›kWh → J
From
To
result below ↓
1 kWh=
3,600,000J
formula1 kWh = 3,600,000 J

Common kilowatt-hours → joules

=3,600,000 J
=7,200,000 J
=18,000,000 J
=36,000,000 J
=72,000,000 J
=180,000,000 J
=360,000,000 J
=1.8B J
=3.6B J

Need a different value? .

Convert the other way
Joules to Kilowatt-hours

How to convert kilowatt-hours to joules

To convert kilowatt-hours to joules, multiply the value by 3,600,000.

Formula
J = kWh × 3,600,000

For example:

  • →5 kWh = 18,000,000 J
  • →100 kWh = 360,000,000 J

Quick reference

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

When you need to convert kWh to J

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

Related conversions

Joules to Kilowatt-hours
1 J = 2.7778e-7 kWh
Kilowatt-hours to Kilojoules
1 kWh = 3,600 kJ
Kilowatt-hours to Calories
1 kWh = 860,421 cal
Kilowatt-hours to Kilocalories
1 kWh = 860.421 kcal
Kilojoules to Joules
1 kJ = 1,000 J
Calories to Joules
1 cal = 4.184 J
Kilocalories to Joules
1 kcal = 4,184 J
Watt-hours to Joules
1 Wh = 3,600 J
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