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kWh (kilowatt-hour) and joules are units of energy commonly used in the fields of physics and engineering to quantify the amount of work done or energy transferred. Here’s a brief explanation of each:
Kilowatt-hour (kWh)
A kilowatt-hour is a unit of energy commonly used to measure electricity consumption. It’s often seen on household utility bills and is used to express the amount of energy consumed by electrical devices over time. One kilowatt-hour is equal to the energy consumed by a 1-kilowatt (kW) device operating for one hour. Mathematically, it can be calculated as: 1 kWh = 1 kW × 1 hour
This unit is useful for describing the energy consumption of appliances, buildings, and entire power systems.
Joule (J)
The joule is the standard unit of energy in the International System of Units (SI). It is used to measure various forms of energy, such as mechanical, thermal, and electrical energy. One joule is defined as the amount of energy transferred when a force of one newton acts over a distance of one meter in the direction of the force. Mathematically, it can be expressed as: 1 J = 1 N × 1 m
Joules are commonly used in scientific calculations and engineering to describe the energy associated with various processes and interactions.
How to convert kWh to joules
1kWh = 3600000J = 3.6⋅106J = 3.6MJ
Conversion Formula
E(J) = 3600000 ⋅ E(kWh)
kWh to joules conversion table
| Energy (kWh) | Energy (J) |
| 1 kWh | 3600000 J |
| 2 kWh | 7200000 J |
| 3 kWh | 10800000 J |
| 4 kWh | 14400000 J |
| 5 kWh | 18000000 J |
| 6 kWh | 21600000 J |
| 7 kWh | 25200000 J |
| 8 kWh | 28800000 J |
| 9 kWh | 32400000 J |
| 10 kWh | 36000000 J |
| 20 kWh | 72000000 J |
| 30 kWh | 108000000 J |
| 40 kWh | 144000000 J |
| 50 kWh | 180000000 J |
| 60 kWh | 216000000 J |
| 70 kWh | 252000000 J |
| 80 kWh | 288000000 J |
| 90 kWh | 324000000 J |
| 100 kWh | 360000000 J |
| 200 kWh | 720000000 J |
| 300 kWh | 1080000000 J |
| 400 kWh | 1440000000 J |
| 500 kWh | 1800000000 J |
| 600 kWh | 2160000000 J |
| 700 kWh | 2520000000 J |
| 800 kWh | 2880000000 J |
| 900 kWh | 3240000000 J |
| 1000 kWh | 3600000000 J |
FAQs on kWh to Joules conversion
What is 1 kWh in joules?
1 kilowatt-hour (kWh) is equivalent to 3,600,000 joules.
How do you convert kWh to kJ?
To convert kilowatt-hours (kWh) to kilojoules (kJ), multiply the value in kWh by 3,600.
Why is 1 kWh equal to 3600 kJ?
The conversion factor is based on the relationship between joules and kilojoules (1 kJ = 1000 J) and the fact that 1 kWh equals 3,600,000 joules (1 kJ = 1000 J * 3600 = 3600 kJ).
How much is 1 kWh?
1 kilowatt-hour (kWh) is the amount of energy consumed when using 1 kilowatt of power for 1 hour. It's commonly used to measure electricity consumption.
What is 1 kWh also known as?
1 kilowatt-hour (kWh) is also known as one unit of electricity. It represents the amount of energy used by a 1-kilowatt appliance running for 1 hour.
What is 1 joule of energy?
1 joule (J) is the SI unit of energy and represents the amount of energy transferred when a force of 1 newton acts on an object to move it 1 meter in distance.
What is 1 unit of energy (kWh)?
1 unit of energy, often seen on electricity bills, is equivalent to 1 kilowatt-hour (1 kWh). It's a measure of energy consumption and is used to calculate the cost of using electrical appliances over time.
