Energy Consumption Formula:
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Definition: This calculator converts electrical power in watts to energy consumption in kilowatt-hours (kWh), commonly referred to as "units" in electricity billing.
Purpose: It helps estimate electricity consumption and costs for appliances and devices.
The calculator uses the formula:
Where:
Explanation: The formula converts watt-hours to kilowatt-hours by dividing by 1000 (since 1 kW = 1000 W).
Details: Understanding energy consumption helps in estimating electricity bills, comparing appliance efficiency, and managing power usage.
Tips: Enter the appliance's power rating in watts and the operating time in hours. Both values must be > 0.
Q1: What is a "unit" of electricity?
A: One unit equals one kilowatt-hour (kWh) of energy consumed.
Q2: How do I find an appliance's power rating?
A: Check the label or specification sheet (usually in watts or kW). 1 kW = 1000 watts.
Q3: Can I calculate monthly consumption?
A: Yes, multiply daily usage by 30 or enter total monthly operating hours.
Q4: How accurate is this calculation?
A: It provides theoretical consumption. Actual usage may vary based on power fluctuations and usage patterns.
Q5: How do I estimate costs from this?
A: Multiply kWh result by your electricity rate (per kWh) from your utility bill.