Kilojoules to joules converter

Convert kilojoules (kJ) to joules (J).

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CONVERSION

1 kJ ≈ 1000 J

Display precision

Precision changes displayed rounding, not calculation accuracy.

FORMULAJ = kJ × 1000

FORMULA & EXAMPLES

How to convert Kilojoules to joules

J = kJ × 1000

Multiply the kJ reading by 1000.

Worked examples

1 kJ ≈ 1000 J

1 × 1000 ≈ 1000

1000 kJ ≈ 1000000 J

1000 × 1000 ≈ 1000000

Kilojoules to joules table

Fixed reference · Kilojoule to Joule

Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.

Kilojoule (kJ)	Joule (J)
0	0
0.1	100
0.5	500
1	1000
2	2000
5	5000
10	10000
25	25000
50	50000
100	100000
1000	1000000

Table results use 10 significant figures; decimal formula coefficients use up to 15. Calculations use the unit definitions before rounding. Extra digits do not improve measurement accuracy.

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