Contact
We'd love to hear from you. Whether you've found a bug, spotted a number that looks off, have an idea for a new calculator, or want to discuss a partnership, the best way to reach us is by email.
Email us
We read every message and aim to reply within a few days.
What's especially welcome
- Corrections — if a result looks wrong, tell us the inputs you used and what you expected. Accuracy matters to us and we'll investigate.
- Feature ideas — a calculator or guide you wish existed.
- Feedback — anything that made the site confusing or could be clearer.
- Partnerships and press — collaboration or media enquiries.
Before you write
You might find a quick answer in our guides, which explain how each calculator works. For how we handle data, see the Privacy Policy; for how the site is funded, see the Affiliate Disclosure.