Energy Converter

Convert between chemical, electrical and physical energy units.

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Related Conversions
1 J to kWh 5 J to kWh 25 J to kWh 100 J to kWh 1,000 J to kWh 2,500 J to kWh 5,249 J to kWh 10,000 J to kWh 10,498 J to kWh 17,496 J to kWh 50,000 J to kWh 87,480 J to kWh
Reverse Conversions
1 kWh to J 10 kWh to J 100 kWh to J 1,000 kWh to J 3,499 kWh to J 4,811 kWh to J 5,000 kWh to J 6,998 kWh to J 10,000 kWh to J 10,498 kWh to J 43,740 kWh to J 50,000 kWh to J
More Energy Conversions
1 MJ to BTU 100 J to cal 1 GJ to kWh 1 GJ to MJ 2 MJ to BTU 100 kJ to kcal 1 MJ to kWh 2 GJ to MJ 10 BTU to J 250 cal to J

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Recent Tools

Popular Conversions

Kilowatt-Hours to Megajoules Megajoules to Kilowatt-Hours Joules to Calories Kilocalories to Kilojoules British Thermal Units to Joules Watt-Hours to Joules

Common Benchmarks

Match stick 1 kJ
Food calorie 4184 J
AA battery 10 kJ
1 kWh 3.6 MJ
Boil 1 liter water 334 kJ
100 W bulb for 1 hour 0.1 kWh

Formula

kWh = J × 2.77777778e-7

Example

Example: convert 4374 joules to kilowatt-hours.

4374 J = 0.001215 kWh

Conversion table

joules (J) kilowatt-hours (kWh)
1 J 2.77777778e-7 kWh
2 J 5.55555556e-7 kWh
5 J 0.00000139 kWh
10 J 0.00000278 kWh
20 J 0.00000556 kWh
50 J 0.00001389 kWh
100 J 0.00002778 kWh

Explanation

These are both units.

How to convert joules to kilowatt-hours

  1. Start with the value in joules (J).
  2. Multiply it by 2.77777778e-7.
  3. The result is the measurement in kilowatt-hours (kWh).

Example: 4374 J → 0.001215 kWh

Frequently Asked Questions

How much is 4374 joules in kilowatt-hours?

4374 joules equals 0.001215 kilowatt-hours.

What is a joule?

A joule is a unit of energy.

What is a kilowatt-hour?

A kilowatt-hour is a unit of energy.

When are joules used?

It is used when working with energy measurements.

When are kilowatt-hours used?

It is used when working with energy measurements.

Why do some conversions produce very small or very large numbers?

The result can look tiny or huge because the units are meant for very different scales. A joule is used for everyday scales, while a kilowatt-hour is used for much larger scales. That’s why 1 kilowatt-hour equals 3,600,000 joules.