1. What is a Watts to kWh Calculator?

Definition: This calculator converts power consumption in watts to energy usage in kilowatt-hours (kWh).

Purpose: It helps homeowners and businesses estimate electricity consumption and costs for various electrical devices.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• kWh — Kilowatt-hours (energy consumption)
• Watts — Power consumption of the device
• Hours — Duration of usage

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

3. Importance of Energy Calculation

Details: Understanding energy consumption helps in estimating electricity bills, comparing appliance efficiency, and planning for renewable energy systems.

4. Using the Calculator

Tips: Enter the device's power consumption in watts and the duration of use in hours. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Where can I find the wattage of my device?
A: Check the device's label, manual, or specifications sheet. Many appliances list wattage on their nameplate.

Q2: How can I estimate monthly energy use?
A: Multiply daily kWh by number of days used per month, or use average daily hours over a month.

Q3: What's the difference between watts and kilowatt-hours?
A: Watts measure power (rate of energy use), while kWh measure energy (power × time).

Q4: How do I calculate cost from kWh?
A: Multiply kWh by your electricity rate (per kWh) from your utility bill.

Q5: Can I use this for DC devices?
A: Yes, the calculation works the same for both AC and DC power as long as you have the correct wattage.