Contact us
We read every message. The quickest way to reach us is by email.
What you can contact us about
- Membership and billing — include the email address of your account. You can also manage or cancel your subscription yourself from your account.
- Corrections — if a calculator result or a figure in a blog post looks wrong, please include the inputs you used and what you expected.
- Bug reports — tell us the page, your device and browser, and what happened.
- Suggestions — ideas for new calculators or topics you’d like explained.
- Privacy requests — questions about the data described in our privacy policy.
- Partnerships — business and media enquiries.
We aim to reply within a few business days. Please note that we can’t give personal financial advice about your own situation — for that, speak to a qualified professional.