1. What is the Electricity Consumption Formula?

The electricity consumption formula calculates energy usage in kilowatt-hours (kWh) based on power consumption in watts and time in hours. It provides a standardized way to measure electrical energy consumption for billing and monitoring purposes.

2. How Does the Calculator Work?

The calculator uses the electricity consumption formula:

Where:

• \( kWh \) — Kilowatt-hours (energy consumption)
• \( P \) — Power in watts (W)
• \( hours \) — Time in hours

Explanation: The formula converts watts to kilowatts (dividing by 1000) and multiplies by hours to get energy consumption in kilowatt-hours.

3. Importance of kWh Calculation

Details: Accurate kWh calculation is essential for electricity billing, energy consumption monitoring, environmental impact assessment, and efficient energy management.

4. Using the Calculator

Tips: Enter power consumption in watts and usage time in hours. Both values must be positive numbers. The result shows energy consumption in kilowatt-hours.

5. Frequently Asked Questions (FAQ)

Q1: What is a kilowatt-hour (kWh)?
A: A kilowatt-hour is a unit of energy equal to the energy consumed by a 1000-watt device running for one hour.

Q2: How is kWh different from kW?
A: kW (kilowatt) measures power (rate of energy use), while kWh (kilowatt-hour) measures energy (total consumption over time).

Q3: Why divide by 1000 in the formula?
A: We divide by 1000 to convert watts to kilowatts since 1 kilowatt = 1000 watts.

Q4: Can I use this for DC and AC circuits?
A: Yes, the formula works for both DC and AC circuits as long as you use the correct power value in watts.

Q5: How accurate is this calculation?
A: The calculation is mathematically precise. Accuracy depends on the accuracy of your power and time measurements.