Informational use
Tools provide general estimates. They do not replace professional advice, official documentation, or legally required checks.
External services
Some functions open or query external providers. Their terms, availability, and policies are the responsibility of each provider.
Responsible use
Do not use the site for unlawful activity, abusive automation, or attempts to disrupt service availability.
Changes
Tools, formulas, links, and terms may be updated to fix errors or adapt to technical changes.
Reviewed August 20, 2026