Calculator information
Calculator inputs are processed in your browser. Optional Save on device features use local storage. Shared calculation links contain the values you choose to share.
Contact and administration
If you use the contact form, your name, email address and message are emailed to the site operator. Hosting and email providers process those requests. Admin sessions use essential cookies; security records and editorial audit logs support secure operation.
Control and retention
You can clear saved calculator settings using the tool controls or your browser’s site-data controls, and you can block or delete cookies in your browser settings. For questions about personal information, contact us through the contact page.