1. What is Power Consumption Calculator?

Definition: This calculator estimates the energy consumption in kilowatt-hours (kWh) based on the power rating of an appliance and its usage time.

Purpose: It helps homeowners and businesses understand their electricity usage and estimate electricity costs.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( E \) — Energy consumption (kWh)
• \( P \) — Power rating of appliance (watts)
• \( t \) — Time of usage (hours)

Explanation: The power in watts is multiplied by time in hours, then divided by 1000 to convert watt-hours to kilowatt-hours (kWh).

3. Importance of Power Consumption Calculation

Details: Understanding energy consumption helps in budgeting electricity costs, comparing appliance efficiency, and reducing energy waste.

4. Using the Calculator

Tips: Enter the appliance's power rating in watts and the duration of use in hours. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Where can I find an appliance's power rating?
A: Check the label on the appliance, user manual, or manufacturer's specifications. It's often listed in watts (W) or kilowatts (kW).

Q2: How can I estimate monthly consumption?
A: Calculate daily consumption then multiply by 30, or track actual usage patterns over time.

Q3: What's the difference between watts and kilowatt-hours?
A: Watts measure power (rate of energy use), while kilowatt-hours measure energy consumption (power × time).

Q4: How do I convert this to electricity cost?
A: Multiply the kWh result by your electricity rate (cost per kWh from your utility bill).

Q5: Why divide by 1000 in the formula?
A: There are 1000 watts in a kilowatt, so we divide by 1000 to convert watt-hours to kilowatt-hours.