Skip to content
Contact

Tell us what is wrong, or what is missing

Corrections carry the most weight with us, and requests for new calculators are the second most useful thing you can send. Several of the tools on this site exist because a reader wrote in.

Prefer to email directly? That works just as well as the form below. Write to [email protected] for anything about the site itself, a calculator, or the data section, or to [email protected] for general questions and partnership enquiries. Either address reaches us and gets read the same day, more or less.

Send a message

We use your email address only to reply to you. It is not added to a list and not shared with anyone.

Please do not send passwords, bank details, examination numbers or other sensitive information.

What to send, and where it goes

A correction

The most valuable message you can send. Tell us which page, which figures you entered and what you expected. We check every reported error against the underlying source, and if we got it wrong we fix it and say so.

A calculator request

If you keep doing a calculation by hand, or can never find a straight answer to a number, describe it. We prioritise by how many people ask and whether we can do it accurately.

Data and privacy

Questions about what we store, or a request to remove a submission you made. Our privacy policy covers the detail, and we answer specific questions directly.

Partnerships and advertising

We are open to conversations. What we do not do is accept payment for editorial recommendations, or write about a product or institution in exchange for anything.

Things we are often asked first

How quickly will I get a reply?
Usually within two or three working days. Reported errors in a calculator get looked at first, because other people are using the same page while it is wrong.
Can you help with my specific application or exam?
We are not able to advise on individual cases, and we are not affiliated with any institution or examination body. For anything decision specific, contact the institution directly. The calculators and articles are where our general help lives.
Do I need an account to use anything?
No. There are no accounts on this site. Every calculator, data set and article is open to everyone, and the calculators run entirely in your browser so there is nothing to sign in to.
Can I remove something I submitted to the data section?
Tell us roughly what and when you submitted and we will find it and remove it. Since submissions are anonymous by design, we cannot look them up by your name, so the more detail you can give the better.
Can I republish your calculators or articles?
Not without permission, as set out in our terms. Quoting a short passage with a link back is fine and welcome. Write to us for anything more substantial.

Before you write about a figure. Most tool pages include a method section and a worked example that explain exactly how the number was reached. If a result looks wrong, that section is usually the fastest way to see why, and it may save you a wait for our reply.