Privacy

The short version: there is nothing here to collect your data with.

Every calculator on ElectricityCost runs entirely in your browser, in JavaScript delivered with the page. The wattages, hours and rates you enter never leave your device — there is no server receiving them, no form submission, no account system and no database behind this site.

The site loads no third-party scripts, no advertising and no analytics beacons, and it sets no cookies for tracking. (Like any website, it is served by a hosting platform that may keep standard technical server logs — IP address, time, page requested — for security and operations; those logs are the host's, not a feature of this site, and nothing in them is tied to what you type into a calculator.)

If a Pro tier launches in future, this page will be updated before anything about data handling changes. Until then: type freely — the numbers stay on your machine because there is nowhere else for them to go.