This calculator will help you effortlessly convert watts to kilowatt-hours for your energy consumption calculations.

## Watts to kWh Calculator

### How to Use the Calculator

To convert from watts to kilowatt-hours (kWh), simply input the power in watts along with the total number of hours the device or appliance has been used. Then click on the “Calculate” button to generate the result in kWh.

### How It Calculates the Results

The conversion from watts to kilowatt-hours is calculated by multiplying the power in watts (W) by the time in hours and then dividing by 1,000 to convert to kilowatts (kW):

**kWh = (Watts x Hours) / 1,000**

### Limitations of the Calculator

The results are based on the constant use at the specified power rating which may not reflect variable power usage over time. Appliances often use more power when starting up or may cycle on and off. This calculator assumes a steady power draw and does not take into account variations in power usage or efficiency ratings over time.