Contact

One address for everything - a wrong figure, a missing calculator, a country you would like added, or a partnership. It goes to a mailbox that is read.

Email

contact@ultimatecalc.in

Write to us

The button opens your own email app with the address filled in. Nothing you write passes through this site.

What to write about

  • A wrong figure. The most useful report names the calculator, the exact inputs you used, the result you got and the result you expected - the working shown on the page usually makes the difference easy to pin down.
  • A calculator that should exist. Say what it should calculate and, if you know, which country's rules it depends on.
  • A country you would like supported, or help checking the rules for one. The countries page shows what exists today.
  • Feedback on what is confusing, slow, or missing.
  • Advertising and partnerships. The site is funded by ads and affiliate links; if you are a relevant advertiser or affiliate network, say who you are and which calculators you have in mind.
  • Privacy requests. The Privacy Policy explains what little data the site holds; write to the same address to exercise any right described there.

What is not here

There is no phone number and no postal address to publish, and no live chat. Email is the one channel, and it is a real one rather than a form that goes nowhere. Replies are written by a person, so they can take a few days.