Contact us
Feedback, a correction, or a calculator you'd love to see? We read every message.
Found a number that looks off, or want a calculator we don’t have yet? Send us a note and we’ll get back to you. Requests directly shape what we build next.
What you can reach us about
- Corrections. If a result looks wrong, tell us the calculator, the exact inputs you used (or paste the share link), and the figure you expected. We treat accuracy reports as a priority.
- Calculator requests. Tell us what you’d like to compute and, if you have one, a reference for the formula. Popular requests move up the queue.
- Feedback. Confusing wording, a layout that breaks on your device, an accessibility issue — small notes make the tools better for everyone.
- Partnerships & advertising. For business, press or advertising enquiries, include a short description of what you have in mind.
Getting a faster reply
The more specific you are, the quicker we can help — a share link, a screenshot, or the steps to reproduce an issue saves a round-trip. We read every message and aim to respond within a few business days. Please note that we can help with how a calculator works, but we cannot provide personalised financial, tax, medical or legal advice; see our Terms for details.