Joules to Kilowatt-hours Converter

Convert joules (watt-seconds) (J) to kilowatt-hours (kWh), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Enter an amount of energy, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.

Value

A number, fraction (3/8), mixed number (1 1/2), scientific notation (2.5e6) or a simple sum such as 2*3.

The unit you want the answer in. Swap exchanges the two units.

Result

Result: 2.77777777778 × 10⁻⁷ kWh
kilojoules: 0.001 kJ
megajoules: 1 × 10⁻⁶ MJ
gigajoules: 1 × 10⁻⁹ GJ
calories (thermochemical): 0.239005736138 cal
kilocalories (food Calories): 0.000239005736138 kcal
megacalories: 2.39005736138 × 10⁻⁷ Mcal
watt-hours: 0.000277777777778 Wh
megawatt-hours: 2.77777777778 × 10⁻¹⁰ MWh
British thermal units (IT): 0.000947817120313 Btu
million Btu: 9.47817120313 × 10⁻¹⁰ MMBtu
therms (100,000 Btu): 9.47817120313 × 10⁻⁹ thm
quads (10¹⁵ Btu): 9.47817120313 × 10⁻¹⁹ quad
electronvolts: 6.24150907446 × 10¹⁸ eV
kiloelectronvolts: 6.24150907446 × 10¹⁵ keV
megaelectronvolts: 6,241,509,074,460 MeV

1 J = 2.77777777778 × 10⁻⁷ kWh

Show the working

1 J = 2.77777777778e-7 kWh
1 × 2.77777777778e-7 = 2.77777777778e-7 kWh

How to convert joules to kilowatt-hours

1 kWh = 3,600,000 J, so divide by 3,600,000 to go from joules (watt-seconds) to kilowatt-hours (1 J = 2.77777777778 × 10⁻⁷ kWh).

kWh = J ÷ 3,600,000
J = kWh × 3,600,000

Worked example:

1 J = 2.77777777778e-7 kWh
5 × 2.77777777778e-7 = 1.38888888889e-6 kWh

Joules to kilowatt-hours table

Joules	Kilowatt-hours
1 J	2.77777777778 × 10⁻⁷ kWh
2 J	5.55555555556 × 10⁻⁷ kWh
3 J	8.33333333333 × 10⁻⁷ kWh
4 J	1.11111111111 × 10⁻⁶ kWh
5 J	1.38888888889 × 10⁻⁶ kWh
6 J	1.66666666667 × 10⁻⁶ kWh
7 J	1.94444444444 × 10⁻⁶ kWh
8 J	2.22222222222 × 10⁻⁶ kWh
9 J	2.5 × 10⁻⁶ kWh
10 J	2.77777777778 × 10⁻⁶ kWh
15 J	4.16666666667 × 10⁻⁶ kWh
20 J	5.55555555556 × 10⁻⁶ kWh
25 J	6.94444444444 × 10⁻⁶ kWh
30 J	8.33333333333 × 10⁻⁶ kWh
40 J	1.11111111111 × 10⁻⁵ kWh
50 J	1.38888888889 × 10⁻⁵ kWh
75 J	2.08333333333 × 10⁻⁵ kWh
100 J	2.77777777778 × 10⁻⁵ kWh
250 J	6.94444444444 × 10⁻⁵ kWh
500 J	0.000138888888889 kWh
1000 J	0.000277777777778 kWh

About the units

Joules (J): Joules (watt-seconds), a metric unit. Definition: BIPM SI Brochure, 9th edition (SI units, prefixes and units accepted for use with the SI).
Kilowatt-hours (kWh): Kilowatt-hours, a metric unit. Definition: BIPM SI Brochure, 9th edition (SI units, prefixes and units accepted for use with the SI).

Formula version 0.1.0Reviewed

Joules to Kilowatt-hours Converter

How to convert joules to kilowatt-hours

Joules to kilowatt-hours table

About the units

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