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 energy costs.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( E \) — Energy consumption (kilowatt-hours)
• \( P \) — Power rating (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.

3. Importance of Power Consumption Calculation

Details: Understanding energy usage helps in budgeting electricity costs, identifying energy-efficient appliances, and reducing carbon footprint.

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 do I calculate monthly energy consumption?
A: Multiply the daily kWh by the number of days used per month. For example: 1.5 kWh/day × 30 days = 45 kWh/month.

Q3: How can I estimate my electricity cost?
A: Multiply the kWh result by your electricity rate (e.g., 1.5 kWh × $0.12/kWh = $0.18).

Q4: What's the difference between watts and kilowatts?
A: 1 kilowatt (kW) = 1000 watts (W). We use kWh for billing because watts are too small for practical energy measurement.

Q5: Does this account for standby power?
A: No, this calculates active usage only. Many appliances consume power even when "off" (standby mode).