1. What is kW vs kWh?

kW (kilowatt) measures power - the rate at which energy is used. kWh (kilowatt-hour) measures energy - the total amount of electricity consumed over time. This calculator converts between power (kW) and energy (kWh) based on usage time.

2. How Does the Calculator Work?

The calculator uses the simple equation:

Where:

• \( kW \) — Power in kilowatts
• \( Hours \) — Time in hours
• \( kWh \) — Energy in kilowatt-hours

Explanation: This calculates the total energy consumed by multiplying the power rating by the duration of use.

3. Importance of Power vs Energy Calculation

Details: Understanding the difference between kW and kWh is essential for energy management, electricity billing, and comparing appliance efficiency.

4. Using the Calculator

Tips: Enter power in kW and time in hours. Both values must be positive numbers. The result shows the total energy consumption in kWh.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between kW and kWh?
A: kW measures instantaneous power (like speed), while kWh measures total energy consumed over time (like distance traveled).

Q2: How do I convert kWh back to kW?
A: Divide kWh by hours to get average kW during that period.

Q3: What's a typical kW rating for household appliances?
A: Refrigerator: 0.1-0.2 kW, Microwave: 0.7-1.5 kW, Air Conditioner: 1-5 kW.

Q4: How does this relate to my electricity bill?
A: Most utilities charge by kWh consumed - this calculator helps estimate costs based on appliance power and usage time.

Q5: Can I use this for solar panel calculations?
A: Yes - a 5 kW solar system producing for 4 hours would generate 20 kWh (5 kW × 4 h).