Privacy Policy

Last updated: April 2026

WattCost.org is committed to your privacy. This page explains what data we do and do not collect.

What we do not collect

• We do not require registration or any personal information.
• All electricity cost calculations run entirely in your browser. No calculation data is sent to our servers.
• We do not use cookies for tracking or analytics purposes.

Advertising

This site uses Google AdSense to display advertisements. Google may use cookies and similar technologies to serve ads based on your prior visits to this and other websites. You can opt out of personalized advertising at google.com/settings/ads.

Local storage

Your electricity rate preference (country, state, and rate per kWh) is saved in your browser's local storage so you don't have to re-enter it on each visit. This data never leaves your device. You can clear it at any time by clearing your browser's site data.

Contact

Questions about this policy? Contact us at [email protected].