Service scope
The website provides educational calculators and explanations. Use does not open an account, execute a transaction or create an advisory relationship. A projection depends on the assumptions entered and the published model conventions.
Using the tools
Provide values in the labeled units and inspect validation messages. Do not use the service to interfere with its operation, attempt unauthorized access or submit unlawful content. No payment, subscription or account is required by the calculator itself.
Availability and accuracy
The service is provided as available without a promise of uninterrupted operation or error-free suitability for every purpose. Formulas, source snapshots and implementation can be revised when a correction is identified. This statement does not remove rights that applicable law makes non-waivable.
Exports and third-party sources
You decide whether to download or share a result. Source references are provided for context and are not endorsements by those institutions. Their availability and policies are outside this site’s control. No trade, return, delivery of email or external action is implied by a local calculation.
Questions and corrections
Use the contact composer to prepare a report with the relevant page and assumptions. It clearly states that message delivery is unconfigured. Consult the privacy notice for how browser calculations and deliberate downloads are handled.