Effective October 30, 2026. Working Tools provides browser-based planning tools. No name, email or account is required to calculate, print or download a report.
Our calculator code processes entries in your browser and does not upload your input values or generated reports to a Working Tools database or mailing list. Entries are held in the current page session; export your work before leaving. Downloaded and printed reports are controlled by you. Marina quotes are entered manually; we do not upload your comparisons or report values.
The site is hosted through ChatGPT Sites. Hosting and network providers may process IP addresses, browser information and request logs to deliver and protect the service under their own policies. External links, including email links, take you to services with separate privacy practices. We do not control the retention periods of hosting-provider logs.
Advertising areas are reserved. Google AdSense advertising is not currently enabled on this site.
If Google AdSense is activated, Google and other advertising vendors may use cookies, web beacons, IP addresses and other identifiers to deliver, measure and personalize advertising. Google advertising cookies enable Google and its partners to serve ads based on visits to this site and other websites. Third-party vendors may place and read cookies in your browser as part of advertising.
You can manage personalized Google advertising through My Ad Center and learn how Google uses data on partner sites. Additional advertising choices are available through YourAdChoices. Browser cookie controls are also available. When required, advertising consent and privacy-choice controls must be presented before applicable ad processing; declining consent must not prevent use of these calculators.
For privacy questions, corrections or advertising inquiries, email watreslaw@gmail.com. If you email us, your email provider and ours process the message and we receive the information you include. Do not send sensitive vessel, identity or financial documents. We will update this notice when our data practices change.