Contact

What to include

• Reporting a wrong result? Tell us the calculator, the numbers you entered, the answer you got and the answer you expected. That is usually enough to reproduce it immediately.
• Suggesting a calculator? Describe the question you were trying to answer when you could not find a tool for it.
• Something broken on your device? The browser and phone or computer you were using helps a lot.

What we cannot help with

We do not give advice on specific vehicles, repairs, insurance claims, mileage disputes or tax deductions. For anything with money or a legal consequence attached, speak to a qualified professional who can see the actual documents.

How long a reply takes

Most messages get an answer within two working days. Reports of a wrong calculation are dealt with first, usually the same day, because a wrong number left online keeps misleading people for as long as it stays up.

If you do not hear back within a week, assume the message went to spam and send it again. That happens more often than it should with single-word subject lines.

What happens to your email

It is read and, if it needs an answer, replied to. Your address is not added to any list, not shared with anyone, and not used for anything except answering you. There is no newsletter to be subscribed to by accident.

How corrections are handled

When a reported error turns out to be real, the fix goes live and the date at the foot of the affected page changes. We do not quietly edit a number and pretend it was always right. If a mistake was significant enough that someone might have relied on it, the page says what changed.

Business enquiries

Advertising, partnership and press enquiries go to the same address. Put the subject in the first line so it can be routed quickly. We do not accept guest posts, paid links or sponsored mentions, so those messages are not answered.