Privacy Policy
Last updated: May 28, 2026. The short version: our calculators run in your browser, we don't ask for your personal information, and we don't sell data. Here are the details.
1. Information we do not collect
GreenCalcs calculators run entirely in your web browser. The numbers you type — system size, electric bill, state, loan terms — are processed on your device and are never transmitted to or stored on our servers. We do not ask for your name, email, phone number or address to use any tool on this site.
2. Information collected automatically
Like most websites, we use privacy-respecting analytics to understand which pages are useful. This may include your approximate region (country/state level), device type, browser, and the pages you visit. This data is aggregated and cannot be used to identify you personally.
3. Cookies and advertising
GreenCalcs is supported by advertising. Our advertising partners (including Google AdSense, once active) may use cookies or similar technologies to show relevant ads and measure performance. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this and other websites.
- You can opt out of personalized Google advertising at Google Ads Settings.
- You can opt out of third-party vendor cookies at aboutads.info.
- Most browsers let you block or delete cookies in their settings.
4. How we use information
We use the limited, aggregated data above only to improve the site — to fix broken pages, prioritize new calculators, and keep our content accurate. We do not build advertising profiles ourselves and we do not sell, rent or trade any data.
5. Children's privacy
GreenCalcs is intended for adult homeowners and is not directed at children under 13. We do not knowingly collect information from children.
6. Your rights
Depending on where you live (for example, under GDPR or the CCPA), you may have rights to access or delete personal data. Because we don't collect personal data through our calculators, there is typically nothing to access or delete. For questions about analytics or advertising data, email hello@greencalcs.com.
7. Changes to this policy
We may update this policy as the site evolves — for example, when we activate advertising. We'll change the "last updated" date above whenever we do. Material changes will be noted clearly.
8. Contact
Questions about privacy? Email hello@greencalcs.com or see our contact page.