Privacy Policy
This policy explains what information CalcAndPlan collects, how it is used, who it is shared with, and the choices you have.
Last updated: November 8, 2026
Summary
- You can use every calculator without an account. We don’t ask for your name or email to use the site.
- Measurements you type into calculators are processed in your browser and are not sent to us.
- Favorites, recently viewed calculators, saved projects, and your theme setting are stored in your own browser, not on our servers.
- We do not currently use analytics or tracking tools.
- If you send us a message, we receive what you include in it.
- When advertising is enabled, Google and its partners may use cookies to serve and measure ads, subject to your consent where the law requires it.
Information we collect
Information stored in your browser
We use your browser’s local storage to remember your favorite calculators, recently viewed calculators, Project Planner projects, and light/dark theme preference. This information stays on your device. We can’t see it, and you can delete it at any time by clearing this site’s data in your browser. See our Cookie Policy for the full list.
Messages you send us
If you use the contact form, we receive your name, email address, subject, and message. The form is delivered to our inbox through an email delivery provider (Resend), which processes the message only to deliver it. We use this information solely to read and respond to your message.
Server and technical data
Like virtually every website, our hosting provider automatically processes technical information when your browser requests a page, such as your IP address, browser type, the page requested, the referring page, and the date and time. This is used to deliver the website, keep it secure, prevent abuse, and troubleshoot problems. Our contact form also uses your IP address briefly to limit repeated submissions.
Advertising
To keep CalcAndPlan free, we may show ads served by Google AdSense. When ads are enabled:
- Google, as a third-party vendor, uses cookies and similar technologies to serve ads based on your visits to this and other websites, to limit how often you see an ad, and to measure ad performance.
- Google’s use of advertising cookies enables it and its partners to serve ads to you based on your visits to this site and/or other sites on the internet.
- You can opt out of personalized advertising from Google by visiting Google Ads Settings. You can also learn how Google uses information from sites that use its services at policies.google.com/technologies/partner-sites.
- Some third-party vendors also allow opt-outs at optout.aboutads.info (US) and youronlinechoices.eu (Europe).
Consent
For visitors in the European Economic Area, the United Kingdom, and Switzerland, we use Google’s consent management platform, a Google-certified tool that follows the IAB Transparency and Consent Framework, to ask for your consent before cookies are used for advertising purposes where required. Where offered, the same tool provides privacy choices required by applicable US state laws. You can change your choices at any time using “Privacy choices” in the site footer when advertising is active.
If advertising has not been enabled on the site, no advertising cookies are set and no consent message appears.
How we use information
- To provide, maintain, secure, and improve the website
- To respond to messages you send
- To show advertising, in line with your choices, when enabled
- To comply with legal obligations
We do not sell personal information that we collect directly. Advertising partners’ use of cookies may be considered “selling” or “sharing” under some US state laws; you can opt out through the privacy choices described above and Google Ads Settings.
Data retention
Messages you send are kept only as long as needed to respond and for reasonable record-keeping, and then deleted. Information in your browser’s local storage stays until you clear it. Server logs are retained by our hosting provider for a limited period under its own policies. Advertising cookie lifetimes are set by Google and its partners.
Your privacy rights
Depending on where you live — for example under the GDPR and UK GDPR, California and other US state privacy laws, Canada’s PIPEDA, or Australia’s Privacy Act — you may have rights to access, correct, delete, or restrict the use of your personal information, to object to processing, to withdraw consent, and to complain to a data protection authority. To make a request about information you’ve sent us, contact us through our contact page. We will not discriminate against you for exercising your rights.
Children
CalcAndPlan is a general-audience site and is not directed to children under 13 (or the minimum age in your country). We do not knowingly collect personal information from children. If you believe a child has sent us information, contact us and we will delete it.
Security
The site is served over HTTPS. No method of transmission or storage is completely secure, but we limit what we collect and keep.
International visitors
Our service providers may process information in the United States and other countries. Where required, they use appropriate safeguards for international transfers.
Changes to this policy
We may update this policy as the site changes — for example, if we add analytics. We’ll update the “Last updated” date above and, for significant changes, note them on this page.
Contact
Questions about this policy? Contact us through our contact page.