Contact us

Missing a calculator, found a wrong number, or want your project listed? One form, one address, and a reply from a person.

  • If a result looks wrong, send us the numbers you entered — we will check the formula and tell you either way.
  • Tell us what you were trying to work out. It is more useful than the name of the calculator you expected to find.
  • No files, no screenshots, no login. Everything we need fits in text fields.
  • We cannot advise on your particular loan, tax position or diet — we build calculators, we are not advisers.

This site is an independent directory of online calculators. We do not sell financial products, we do not pass your details to lenders, and we do not give financial, legal or medical advice.

Send us a message

Suggest a calculator, report a wrong number or ask a question. No files, no login — just text fields.

So we can answer in the right language — and so we know which tax or tipping conventions you meant.
Only needed if you chose WhatsApp or a phone call.
Please do not paste account numbers, medical records or anything confidential into this box.

This site is an independent directory of online calculators, not a lender, broker or adviser. We use what you send only to answer you, we never sell it or pass it to a financial company, and you can ask us to delete it at any time.
contactmail.bsam@gmail.com · Privacy

List your project

Tell us what the project calculates, who it is for and which subdomain you would like. We reply either way.

Letters, digits and hyphens only. It becomes a subdomain of sitea.biz
An honest answer here helps more than an optimistic one — we list working calculators, but we like to know what is coming.
Write the sentence you would want on the card. It gets translated into 12 languages.

By applying you agree that we may test your project publicly and describe it in our own words on the card. Listing is free and not automatic; we may decline, and we may remove a listing later if the project turns into a lead form for lenders or advertisers.
contactmail.bsam@gmail.com · Terms

All calculators All guides List your project

Reviewed 2026-08-09 by sitea.biz. About us

A directory, not a broker

We list independent calculators. We sell no financial product.

Nothing leaves your browser

Your income, debts and weight are processed on your device.

No login, no adverts

No accounts, no advertising cookies, no leads passed to lenders.

12 languages

Calculators, labels, results and guides, all translated.

The formula is named

Every calculator says what it used, so you can check it.