KWh to watts calculator

Converting kilowatt-hours (kWh) to watts (W) is a common task when working with electrical energy and power. This guide explains the concept and provides a clear method for making the conversion.

What Is kWh?

Kilowatt-hour (kWh) measures energy usage over time. It indicates how much power (in kilowatts) is used over one hour. For example, if a device consumes 1 kW for 1 hour, it uses 1 kWh of energy.

What Are Watts?

Watts (W) measure power, the rate at which energy is used or produced. One kilowatt equals 1,000 watts.

The Relationship Between kWh and Watts

The key difference between kWh and watts lies in time:

• kWh: Energy used over time.
• W: Instantaneous power at any given moment.

How to Convert kWh to Watts

To calculate watts from kWh, you need the time (in hours) the energy was used. Use the formula:

\[
\text{Watts} = \frac{\text{kWh} \times 1000}{\text{Hours}}
\]

Examples of Conversion

1. Example 1: A device uses 2 kWh over 4 hours:
   \[
   \text{Watts} = \frac{2 \times 1000}{4} = 500 \, \text{W}
   \]
2. Example 2: A heater consumes 5 kWh in 10 hours:
   \[
   \text{Watts} = \frac{5 \times 1000}{10} = 500 \, \text{W}
   \]

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