Kilojoule → Watt hour (kJ → Wh)

1 kJ = 0.27777777777778 Wh
1 Kilojoule (kJ) = 0.27777777777778 Watt hour (Wh).

Kilojoule (kJ):


Watt hour (Wh):

If you want to reverse convert, use Watt hour → Kilojoule. 1 Wh = 3.6 kJ. You can also explore the full Energy converter page for more cross conversions.

Conversion formula

Kilojoule to Watt hour formula: value in Wh = value in kJ × 0.27777777777778.

Watt hour to Kilojoule formula: value in kJ = value in Wh × 3.6.

How to convert Kilojoule to Watt hour

To convert Kilojoule to Watt hour, multiply the value in kJ by 0.27777777777778. This gives the result in Wh.

For example, 1 kJ = 0.27777777777778 Wh and 10 kJ = 2.7777777777778 Wh.

What is Kilojoule?

Kilojoule (kJ): Useful for food-energy values and heat calculations without large joule totals. 1 kJ = 1000 J; 4.184 kJ = 1 kcal.

What is Watt hour?

Watt hour (Wh): The energy used by a one-watt device running for one hour; common in battery specifications. 1 Wh = 1 W × 1 h = 3600 J.

FAQ

Kilojoule → other Energy units

• 1 kilojoule → joule = 1000 joule
• 1 kilojoule → megajoule = 0.001 megajoule
• 1 kilojoule → calorie = 239.00573613767 calorie
• 1 kilojoule → kilocalorie = 0.23900573613767 kilocalorie
• 1 kilojoule → watt hour = 0.27777777777778 watt hour
• 1 kilojoule → kilowatt hour = 0.00027777777777778 kilowatt hour
• 1 kilojoule = 2.7777777777778E-7 megawatt hour
• 1 kilojoule → british thermal unit = 0.94781339449889 british thermal unit
• 1 kilojoule → foot pound = 737.5610331755 foot pound
• 1 kilojoule = 6.2415090744608E+15 mega electron volt
• 1 kilojoule = 6.2415090744608E+21 electron volt

Kilojoule → Watt hour Table

The table below shows common values from Kilojoule to Watt hour and the reverse direction for quick reference.

Watt hour → Kilojoule Table

Watt hour → Kilojoule

The reverse value is 1 Wh = 3.6 kJ.