1. What is Watt-Hour (Wh)?

A watt-hour (Wh) is a unit of energy equivalent to one watt (1 W) of power expended for one hour (1 h) of time. It's commonly used to measure electrical energy consumption.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• \( Wh \) — Energy in watt-hours
• \( P \) — Power in watts
• \( h \) — Time in hours

Explanation: The formula calculates total energy consumption by multiplying power (in watts) by time (in hours).

3. Importance of Watt-Hour Calculation

Details: Calculating watt-hours helps estimate electrical energy usage, which is essential for energy management, cost calculation, and battery capacity planning.

4. Using the Calculator

Tips: Enter power in watts and time in hours. Both values must be positive numbers. The calculator will compute the total energy consumption in watt-hours.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between watts and watt-hours?
A: Watts measure power (rate of energy use), while watt-hours measure total energy consumed over time.

Q2: How do I convert watt-hours to kilowatt-hours?
A: Divide watt-hours by 1000 to get kilowatt-hours (kWh).

Q3: Can I use this for battery capacity calculations?
A: Yes, battery capacity is often measured in watt-hours, showing how much energy it can store.

Q4: How accurate is this calculation?
A: The calculation is mathematically precise, but actual energy consumption may vary based on power fluctuations.

Q5: What's a typical watt-hour consumption for household appliances?
A: For example, a 60W bulb running for 5 hours consumes 300Wh (0.3kWh).