Conversion Formula:
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The kilojoule to kilowatt-hour conversion is a fundamental energy unit conversion used in various fields including physics, engineering, and energy management. It allows conversion between these two common energy measurement units.
The calculator uses the conversion formula:
Where:
Explanation: Since 1 kilowatt-hour equals 3600 kilojoules (1 kW × 3600 seconds), dividing kilojoules by 3600 gives the equivalent value in kilowatt-hours.
Details: Accurate energy conversion is crucial for energy billing, electrical engineering calculations, comparing energy consumption across different systems, and scientific research involving energy measurements.
Tips: Enter the energy value in kilojoules (kJ). The value must be a positive number. The calculator will automatically compute the equivalent value in kilowatt-hours (kWh).
Q1: Why is the conversion factor 3600?
A: Because 1 kilowatt-hour equals 1 kilowatt × 3600 seconds, and since 1 watt-second equals 1 joule, 1 kWh equals 3,600,000 joules or 3600 kilojoules.
Q2: When would I need to convert kJ to kWh?
A: This conversion is commonly needed for electricity billing (which uses kWh), comparing energy consumption of different devices, and converting between scientific and practical energy units.
Q3: What's the difference between kJ and kWh?
A: Kilojoule (kJ) is a unit of energy in the International System of Units, while kilowatt-hour (kWh) is a unit of energy commonly used for electrical energy measurement.
Q4: Can I convert kWh back to kJ?
A: Yes, to convert kWh to kJ, multiply the kWh value by 3600 (kJ = kWh × 3600).
Q5: Are there any limitations to this conversion?
A: This is a straightforward mathematical conversion between energy units and is accurate for all practical purposes when dealing with energy measurements.