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Joules to Kilowatt-hours Converter

1 J = 2.777777778 × 10⁻⁷ kWh. Type any value to convert joules to kilowatt-hours.

1 J = 2.777777778 × 10⁻⁷ kWh

Formula: kWh = J ÷ 3,600,000

Common values
Decimals
In every unit 12 units
Joule (J) 1 J
Kilojoule (kJ) 0.001 kJ
Megajoule (MJ) 0.000001 MJ
Calorie (cal) 0.2390057361 cal
Kilocalorie (kcal) 0.0002390057361 kcal
Watt-hour (Wh) 0.0002777777778 Wh
Kilowatt-hour (kWh) 2.777777778 × 10⁻⁷ kWh
Electronvolt (eV) 6.241509074 × 10¹⁸ eV
British thermal unit (BTU) 0.0009478171203 BTU
Therm (thm) 9.48043428 × 10⁻⁹ thm
Foot-pound (ft·lbf) 0.7375621493 ft·lbf
Erg (erg) 10,000,000 erg

Convert on our server?

If you continue, the file is uploaded over an encrypted connection and converted on our server. You can keep using the site meanwhile. The original is deleted as soon as it is converted; the result is kept for 6 hours so you can download it, and you can delete it at any time. Files are never shared or used for anything else.

Calculated in your browser – nothing you type is sent anywhere. Privacy details

Joules to kilowatt-hours table

Formula: kWh = J ÷ 3,600,000

Joule (J)Kilowatt-hour (kWh)
0.1 J2.777777778 × 10⁻⁸ kWh
0.25 J6.944444444 × 10⁻⁸ kWh
0.5 J1.388888889 × 10⁻⁷ kWh
1 J2.777777778 × 10⁻⁷ kWh
2 J5.555555556 × 10⁻⁷ kWh
3 J8.333333333 × 10⁻⁷ kWh
4 J0.000001111111111 kWh
5 J0.000001388888889 kWh
6 J0.000001666666667 kWh
7 J0.000001944444444 kWh
8 J0.000002222222222 kWh
9 J0.0000025 kWh
10 J0.000002777777778 kWh
12 J0.000003333333333 kWh
15 J0.000004166666667 kWh
20 J0.000005555555556 kWh
25 J0.000006944444444 kWh
30 J0.000008333333333 kWh
40 J0.00001111111111 kWh
50 J0.00001388888889 kWh
60 J0.00001666666667 kWh
75 J0.00002083333333 kWh
100 J0.00002777777778 kWh
150 J0.00004166666667 kWh
200 J0.00005555555556 kWh
250 J0.00006944444444 kWh
500 J0.0001388888889 kWh
1,000 J0.0002777777778 kWh

How to use: Joules to Kilowatt-hours

  1. 1 Type the value in joules.
  2. 2 The result in kilowatt-hours appears at once – or type in the kilowatt-hours field to convert back.
  3. 3 Pick a common value, round to fewer decimals or swap the units with one click.
  4. 4 Copy the result, or open “In every unit” to see the value in all units of energy.

About this tool

Joule (J) is a unit of energy (SI). Kilowatt-hour (kWh) is a unit of energy (metric, accepted for use with the SI); 1 kWh = 3,600,000 J.

To convert joules to kilowatt-hours, divide the value by 3,600,000 (kWh = J ÷ 3,600,000). Example: 100 J = 0.00002777777778 kWh.

Calculated in your browser – nothing you type is sent anywhere.

Frequently asked questions

How do I convert joules to kilowatt-hours?

To convert joules to kilowatt-hours, divide the value by 3,600,000: kWh = J ÷ 3,600,000. For example 100 J = 0.00002777777778 kWh.

What is 1 J in kilowatt-hours?

1 J = 2.777777778 × 10⁻⁷ kWh. The other way round, 1 kWh = 3,600,000 J.

How exact is the result?

The converter uses the official definitions of both units and shows up to 10 significant digits; choose 0–6 decimals to round. Both units are defined exactly in terms of each other, so the factor itself is exact.

Can I convert other units of energy here?

Yes – choose any of the 12 units of energy in the From and To lists, or switch to another measurement at the top.

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