kWh to J Converter - Kilowatt-hour to Joule

Kilowatt-hour (kWh) to Joule (J)

Direct answer

1 kWh = 3,600,000 J

J = kWh × 3,600,000

Converter

Input

kWh

Result

3,600,000J

J = kWh × 3,600,000

kWh = J × 2.77777778e-7

Example: 10 kWh = 10 × 3,600,000 = 36,000,000 J.

Express both kWh and J in the same base unit J (joule), then cancel the shared base unit.

1
Rewrite kWh in the base unit
$1 kWh = 3, 600, 000 J$
2
Rewrite J in the base unit
$1 J = 1 J$
3
Forward conversion
$1 kWh = \frac{3 , 600 , 000 J}{1 J} \times 1 J = \frac{3 , 600 , 000}{1} J = 3, 600, 000 J$
4
Reverse conversion
$1 J = \frac{1 J}{3 , 600 , 000 J} \times 1 kWh = \frac{1}{3 , 600 , 000} kWh = 2.77777778 \times 1 0^{- 7} kWh$

A guarded explanation for this pair page covering definition, principle, assumptions, and cautions.

Guarded output

AI text is for interpretation only. The page calculator remains the source of truth for numeric results.

1 kWh = 3,600,000 J.

10 kWh = 36,000,000 J.

100 kWh = 360,000,000 J.

Use J = kWh × 3,600,000.

1 J = 2.77777778e-7 kWh.

Use the conversion factor and round the result to the precision required by your calculation.