Contact Calculator-Convert

Questions about the website, privacy, partnerships or a calculator result are welcome.

Report a calculation or translation error

Use the dedicated form so the affected page URL is included automatically.

Open the error report

What to include in a technical report

  • The exact page URL and selected language.
  • The values and units you entered.
  • The result you received and what you expected.
  • Your browser and device if the problem is visual or interactive.
  • A supporting source when reporting a formula or regulatory issue.

Before relying on a result

Calculator-Convert provides informational tools. We cannot provide personal medical, veterinary, legal, tax, investment, engineering or emergency advice by email. Safety-critical results should be verified by an appropriately qualified professional.

Calculator-Convert is operated by Rolmyr SRL. To understand how tools are prepared and checked, read our calculation and editorial methodology. Personal-data handling is explained in the Privacy Policy.