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 (W)
• \( h \) — Time in hours

Explanation: This calculation shows how much energy is consumed when a certain amount of power is used over a specific time period.

3. Practical Applications

Details: Watt-hours are used to calculate electricity bills, estimate battery life, and determine the energy consumption of electrical devices.

4. Using the Calculator

Tips: Enter power in watts and time in hours. Both values must be positive numbers. The result shows the total energy consumed 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 energy (total consumption over time).

Q2: How many watt-hours are in a kilowatt-hour?
A: 1 kilowatt-hour (kWh) = 1,000 watt-hours (Wh).

Q3: Can I use this for solar panel calculations?
A: Yes, this helps estimate how much energy a solar panel will produce (watts × hours of sunlight).

Q4: How accurate is this calculation?
A: It's mathematically precise, but actual consumption may vary with device efficiency and power fluctuations.

Q5: Can I calculate battery life with this?
A: Yes, divide battery capacity (in Wh) by device power consumption (in W) to estimate runtime in hours.