Send a question, correction or privacy inquiry to the site operator. For a calculator issue, include the page URL, the anonymous input values, the result shown and the answer you expected. The method page may explain a difference in units or scope before you write.
Please do not send passwords, account identifiers, an exact home address, identity documents or private financial, employment or project records. A small illustrative scenario is usually enough to reproduce an arithmetic problem. A mass-ratio planner, not a measurement of extraction, caffeine, water chemistry or taste. The defaults are examples rather than a universal brewing prescription.
Who receives the message
Messages are sent to the operator’s configured public contact address, or the WordPress administration address when no separate recipient is configured. The form reports whether the site’s mail system accepted the message; it does not guarantee recipient delivery or a reply by a particular time.
Other questions
For privacy requests, identify the message or information concerned without sending unnecessary sensitive documents. For a content-rights concern, include the relevant URL and explain your relationship to the material. See the privacy policy and terms of use for additional context.