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Include the page URL and enough detail to reproduce a calculator or content issue. Do not send passwords, payment details, health data, or other sensitive information.
Questions, corrections, accessibility feedback, and relevant partnership inquiries are welcome.
Include the page URL and enough detail to reproduce a calculator or content issue. Do not send passwords, payment details, health data, or other sensitive information.
For calculation issues, include the inputs, result shown, expected result, browser, and a reliable source where the question depends on an external rule.
See the methodology and correction process for more detail.
Last updated: September 25, 2026