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Kilowatt-hours to Joules

Type a value in Kilowatt-hours or Joules; the other field updates as you type.

Runs in your browser No sign-up

0.1 kWh = 360,000 J

Decimals

Common values

Kilowatt-hours (kWh)Joules (J)
0.001 kWh3,600 J
0.0025 kWh9,000 J
0.005 kWh18,000 J
0.01 kWh36,000 J
0.025 kWh90,000 J
0.05 kWh180,000 J
0.1 kWh360,000 J
0.25 kWh900,000 J
0.5 kWh1,800,000 J
1 kWh3,600,000 J
2.5 kWh9,000,000 J
5 kWh18,000,000 J
10 kWh36,000,000 J

How to use it

  1. Type the number of Kilowatt-hours in the first field.
  2. Read the result in Joules. You can also type in the Joules field to convert the other way.
  3. Use the table of common values, or copy the result with one click.

How it works

Formula: J = kWh × 3600000

1 kWh = 3,600,000 J, and 1 J = 0 kWh.

Results use the exact definitions of both units. The page shows up to 6 decimal places; copy the value for full precision.

Examples

0.001 kWh in J

0.001 kWh = 3,600 J, using J = kWh × 3600000.

0.1 kWh in J

0.1 kWh = 360,000 J, using J = kWh × 3600000.

1 kWh in J

1 kWh = 3,600,000 J, using J = kWh × 3600000.

Frequently asked questions

How do I convert Kilowatt-hours to Joules?

Use the formula J = kWh × 3600000. For example, 0.001 kWh = 3,600 J.

How do I convert Joules back to Kilowatt-hours?

Use the reverse formula kWh = J × 2.7777778e-7. For example, 1 J = 0 kWh.

How accurate is this converter?

It uses the exact legal definitions of the units, so the only rounding is in the number of decimals shown. Copy the result to get the full value.

Privacy

The conversion runs entirely in your browser. Nothing you type is sent anywhere.