Ad space — 336×280 in-content
What to include
To help us respond faster, please let us know:
- Calculator requests — tell us what calculation you're looking for and why it would be useful.
- Corrections — let us know which calculator, what input values you used, and what result you expected versus what you saw.
- Bugs — include your device and browser (e.g. iPhone, Safari) and a description of what happened.
- Privacy or data requests — see our Privacy Policy for information about your rights and how to exercise them.
- Advertising or partnership inquiries — include details about your company and proposal.
Response times
We aim to respond to emails within a few business days. Calculator requests and corrections are reviewed regularly and may be implemented in future updates, though we can't guarantee a timeline for any specific request.