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Convert J to kJ


joule (J)




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Joules (j) and KiloJoules (kj) both are the well-known units of the international system of units (SI) that account to measure energy. The standard symbol for joule is indicated as “j”, where kilojoules (kj). No doubt, conversions between joules to kilojoules looks like a daunting conversion procedure, but don’t to worry as we provided you with smart converter for your convenience. An online j to kj converter allows you to change the amount of joules (j) into the exact number of kilojoules within no time.

For reference, we also discussed the simple formula that lets you to perform manual conversions from joules to kj.

Relation between joules and kilojoules:

Joules (j) and KiloJoules (kj) both are usually used for measuring energy, but they are completely differ in magnitude. Remember that the kj is a derivative of the joule (j), the J itself is said to be as a derivative metric, which simple equal to the energy that transferred to (work done on) an object when a force of 1 N (newton) acts on it in the direction of its motion via a distance of 1 meter (m) (one newton meter or N⋅m).

However, the unit of energy is named after the 19th century English physicist James Prescott Joule (1818–1889) – there’s no any single doubt that he had remarkable contributions to physics, particularly related to the nature of heat, and even is credited by the discovery of its relationship to mechanical work.

The conversions from joules into kilojoules are related to energy requirements in machinery, electrical grids, and even biological entities.

Read on!

  • 1 joule (J) is equal to 0.001 kilojoule (kJ)
  • 1 kilojoule (kJ) is equal to 1000 joules (J)

Joules to Kilojoules Formula:

The formula for j to kj is:

kJ = J ÷ 1,000

How do you convert j to kj (joules to kilojoules)?

Convert with:

  • Online j to kj converter
  • Formula (the below example helps you)

Example of conversions between joules and kilojoules:

Problem: Convert 376 joules to kilojoules?


Step 1 (Formula):

  • kJ = J ÷ 1,000

Step 2 (Put the Values):

  • kJ = 376 ÷ 1,000

Step 3 (Result):

  • 0.376 kilojoules

Means, 376 joules (J) is equal to 0.376 kilojoules (kJ)

Joules (J) to kilojoules (kj) conversion table: