Privacy & use
This free planning tool calculates in your browser. Entries are not sent to us, stored by the app, or shared with an analytics provider. The app does not save or restore your entries; your browser may retain page state or downloads. Downloads are saved only when you choose to save them.
Hosting
Vercel serves the site and may process request information such as IP address, browser and requested path for delivery, reliability and security. This does not include calculator entries. Your browser and device can retain downloaded files and browsing history.
Planning, with limits
Results depend on your inputs and the stated calculation limits. Verify measurements and costs before buying or committing money. Example values are fictional. No product sale, professional advisory service, bank connection or compatibility certification is offered by this free tool.
Use your result
You may use your own calculation exports for personal or internal business planning. The site's design and source are reserved; no resale or redistribution license is granted for them.
Updated November 6, 2026.