Kettle Efficiency Calculator

How to Use the Calculator

1. Enter the power input of your kettle in Watts (W).
2. Enter the time for which the kettle has been operating in hours (h).
3. Enter the energy output of the kettle in kilowatt-hours (kWh).
4. Click the "Calculate" button to determine the efficiency of the kettle.

Understanding the Formula

The efficiency of the kettle is calculated using the following formula:

Efficiency (%) = (Energy Output / (Power Input × Time)) × 100

Where:

• Efficiency (%) is the percentage efficiency of the kettle.
• Energy Output (kWh) is the total energy produced by the kettle.
• Power Input (W) is the power consumed by the kettle.
• Time (h) is the duration the kettle has been operating.

Interpreting the Results

An efficiency of 100% means the kettle is using all the energy it consumes to produce heat, with no energy losses. Real-world efficiencies are typically less than 100% due to various energy losses such as heat dissipation to the environment.

For example, if a kettle with a power input of 2000W operates for 1 hour and produces 1.8 kWh of energy, the efficiency would be:

Efficiency = (1.8 / (2000 × 1)) × 100 = 90%

This means the kettle is using 90% of the energy it consumes to produce heat, with the remaining 10% lost to the environment.