# Electricity cost calculator

Canonical page: https://nepocore.com/tools/electricity-cost/

Estimate energy use in kilowatt-hours and the running cost of an appliance from watts, hours per day, days and an entered unit price.

## How to use it

1. Enter the numbers, dates or units you want to compare.
2. Choose the calculation options and calculate.
3. Review the result together with the assumptions shown.

## Example

Estimate the monthly use of a 100-watt device that runs eight hours each day.

## Limits and checks

This uses a flat price per kWh and excludes fixed charges, taxes, tiered tariffs and changes in an appliance’s actual draw.

## Access and processing

Free to use without an account. Interactive processing requires JavaScript in a modern browser. Input is processed in the browser rather than sent to a processing server. Optional browser storage is not a synchronized account.


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