Privacy

VoltCalc has no accounts and no database.

Calculations

Every calculator runs in your browser. The numbers you type are not sent anywhere.

Saved in your browser

A few things are kept in your browser's local storage so they're there next time: your electricity rate, the appliance list on the electric bill calculator, and your recent questions on the Ask page. They never leave your device. You can clear them here:

Clear saved VoltCalc data

Ask feature

If you use the Ask page, your question is sent to our server and passed to an AI model (OpenAI GPT-6 Luna through Vercel AI Gateway) to generate an answer. We don't store questions or answers. Your IP address is held briefly in memory to limit how many questions one visitor can send. Don't include personal information in questions.

Analytics

We use Ahrefs Web Analytics to count page views. It is cookieless and doesn't track you across sites.

Hosting

The site is hosted on Vercel, which keeps standard server logs.