Last updated: August 2, 2026
Overview
This policy explains how this informational website handles calculator inputs, routine server data, advertising technologies, consent choices and privacy inquiries. The site does not require a user account.
Calculator inputs
Project information entered into the site’s calculators is processed locally in your browser by the calculator code. The calculators do not intentionally transmit, save or create a server-side copy of those inputs. Do not enter confidential, personal or security-sensitive information.
Server logs and technical data
Like most websites, the hosting system may automatically record technical information such as an IP address, browser and device type, operating system, requested page, referring page, date and time, and error or security events. This information may be used for security, diagnostics, abuse prevention and aggregate traffic analysis.
Google AdSense and third-party advertising
This site uses Google AdSense and may display advertising supplied by Google and other authorized third-party vendors or advertising networks. Third-party vendors, including Google, use cookies to serve ads based on a visitor’s prior visits to this website or other websites. Google’s use of advertising cookies enables Google and its partners to serve ads based on visits to this site and/or other sites on the Internet.
Advertising providers may use cookies, web beacons, pixels, local storage, IP addresses and similar technologies to deliver, limit, personalize and measure advertisements, detect invalid traffic, prevent fraud and produce reporting. The providers used for a particular visitor can depend on location, consent choices and Google’s advertising systems.
Personalized advertising choices
Visitors can manage or opt out of personalized Google advertising through Google Ads Settings. Visitors may also review how Google uses information from sites that use its advertising services. Some third-party advertising choices may be available through the Digital Advertising Alliance opt-out tool or the relevant vendor’s own privacy controls.
Consent in the EEA, United Kingdom and Switzerland
For visitors in the European Economic Area, the United Kingdom and Switzerland, the site is intended to use a Google-certified consent management platform configured through Google AdSense Privacy & messaging. The consent message can provide information about advertising vendors and allow visitors to consent, refuse or manage choices where required. Consent choices may affect whether personalized, non-personalized or limited advertising can be shown.
United States state privacy choices
Where applicable, a U.S. state privacy message may be displayed through Google’s consent tools. Available choices can include managing or restricting certain uses of personal information for advertising. Rights and terminology differ by state and may change over time.
Analytics and aggregate measurement
The site may use aggregate measurement tools to understand which pages are used, diagnose errors and improve content. Any analytics technology is subject to applicable consent choices. The site does not intentionally ask visitors to submit sensitive personal or project information.
Managing cookies and storage
You may use the privacy or consent controls displayed on the site, Google Ads Settings and your browser settings to block, delete or restrict cookies and local storage. Blocking these technologies may change how advertising, consent tools or some third-party features operate.
External links
The site links to government agencies, standards bodies and other third-party websites. Those sites control their own data practices and privacy policies. Review their policies before submitting information.
Children
This business-planning website is not directed to children and does not knowingly request personal information from children.
Policy changes
This policy may be updated when advertising technology, consent requirements, site features or applicable laws change. The revision date at the top identifies the current published version.
Contact
Privacy inquiries, access requests or deletion concerns relating to information controlled by the publisher may be submitted through the contact page. Do not send confidential project details.