Effective date: November 1, 2026
Calculator inputs
Measurements entered into our calculators are processed in your browser using JavaScript. The calculator does not transmit those inputs to us and does not require registration.
Contact messages
When you submit the contact form, we receive the name, email address, subject and message you provide. We use this information to read your feedback and respond when appropriate. Messages may be retained in the receiving email account for as long as reasonably needed to manage correspondence. Do not send sensitive financial, medical or identity information.
Technical information and security
Our hosting provider may process ordinary technical information such as IP addresses, browser types, dates, requested pages and server error logs to operate and secure the website. The contact form includes a short-term submission limit to reduce spam.
Google reCAPTCHA
When the contact form is enabled, it uses Google reCAPTCHA to help prevent automated spam. Google may process technical data under its own Privacy Policy and Terms of Service.
Advertising and cookies
We may display advertisements in the future, including advertising provided by Google AdSense. If enabled, advertising partners may use cookies or similar technologies to deliver, measure or personalize ads as permitted by law and your choices. We will update our disclosures and implement any required consent controls before enabling ads in regions where those controls are required. Any consent or privacy settings shown on the site will apply to the relevant features.
External links
Some pages link to third-party resources. Their privacy practices are controlled by those websites, not by Project Calc Tools.
Your choices
You can use every calculator without submitting personal contact information. To request access to or deletion of information sent through our contact form, contact us through the contact page. We may need to verify that a request relates to your message.
Policy updates
We may revise this policy if the site adds new features, advertising providers or processing activities. The updated effective date will appear on this page.