Convert Kilowatt-hours (kWh) to Joules (J)

Enter a value below to convert Kilowatt-hours (kWh) to Joules (J).

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Conversion:

1 Kilowatt-hours (kWh) = 3600000 Joules (J)

How to Convert Kilowatt-hours (kWh) to Joules (J)

1 kwh = 3600000 j

1 j = 2.7777777778e-7 kwh

Example: convert 15 Kilowatt-hours (kWh) to Joules (J):

25 kwh = 90000000 j

Kilowatt-hours (kWh) to Joules (J) Conversion Table

Kilowatt-hours (kWh)Joules (J)
0.01 kwh36000 j
0.1 kwh360000 j
1 kwh3600000 j
2 kwh7200000 j
3 kwh10800000 j
5 kwh18000000 j
10 kwh36000000 j
20 kwh72000000 j
50 kwh180000000 j
100 kwh360000000 j
1000 kwh3600000000 j

Kilowatt-hours (kWh)

Definition

A kilowatt-hour (kWh) is a unit of energy equal to 1,000 watt-hours or 3,600,000 joules. It represents the energy consumed by a 1,000-watt appliance running for one hour.

History

The kilowatt-hour became the standard billing unit for electricity with the widespread electrification of homes and businesses in the early 20th century. Power utilities worldwide adopted it for metering.

Current use

Kilowatt-hours are the universal unit for residential and commercial electricity billing. They are also used to measure electric vehicle battery capacity, solar panel output, and grid-level energy storage.

Joules (J)

Definition

A joule (J) is the SI unit of energy, defined as the work done when a force of one newton moves an object one meter in the direction of the force. It equals 1 kg⋅m²/s².

History

The joule is named after English physicist James Prescott Joule, who demonstrated the relationship between mechanical work and heat in the 1840s. It was adopted as the SI unit of energy in 1889 by the International Electrical Congress.

Current use

Joules are used universally in physics, engineering, and chemistry to quantify energy, work, and heat. They are the standard unit on food labels in many countries and in scientific research worldwide.