Contact

calc-hq.com is a static site — five calculators, not a service with an account to log into.

What to email about

One address covers everything: partnerships@calc-hq.com. That's the place for sponsorship and advertising enquiries, a correction if a result or a piece of copy looks wrong, or a general question about how a calculator works.

No account-based support

Because this site has no accounts and no login, there's no support ticket system or dashboard to check — email is the only channel. For questions about data and cookies specifically, see the privacy policy.