Contact

Get in touch if you've spotted a density figure that looks off, found a broken link, or have a general question about how a conversion on this site works. Corrections are the single most useful thing you can send us — if a number disagrees with a published BIPM or NIST source, tell us which one and we'll check it.

This address is not a source for personal medical or dosing questions. mgtomlcalculator.org covers non-medical measurement only — cooking, food science, classroom chemistry and general liquid density — and nobody here can or will answer a question about a specific health situation. If that's what you're looking for, a doctor or pharmacist is the right person to ask, not a unit-conversion website.

Email hello@mgtomlcalculator.org for anything in scope. There's no contact form and no account to create — this is a static site with no backend, so a direct email is the only way through. Sending one means we'll see your address and whatever you write in the message; see our privacy practices for how that's handled.

Corrections specifically tie back to how we edit and correct this reference and our fact-checking process — either page has the detail on how a fix actually gets made. And if you just want to run a number rather than report one, the calculator is on the homepage.