Contact

Spotted a wrong number?

That is the most useful thing you can send, and the methodology page exists so you can check the arithmetic yourself first. If a figure here is wrong, please include:

• which calculator, and the page URL
• the inputs you entered, if you are willing to share them
• what result you got, and what you expected instead
• where you believe the correct figure comes from, if you have a source

Inputs like height and weight are personal, so they are entirely optional — an anonymised description of the disagreement is enough to investigate.

Send it

Email hello@fitcalculation.com

This opens your own mail client with the subject already filled in. There is no form here and no third-party service collecting your message, which is also why nothing on this page is covered by a tracking script.

What to expect

Formula corrections are treated as a priority and a broken calculator as an incident rather than a backlog item. Realistically that means days, not hours — this is a small independent site with one person behind it. If something is seriously wrong, say so in the subject line.

What not to send

This is not a medical service. Please do not send medical histories, prescriptions, or a request for a personalised diet or training plan — nobody here can safely act on one, and the about page explains why.