Contact
Found an error, have an idea for a new calculator, or want to work with us? Send us an email.
What to include
- Reporting an error: the page address, the numbers you entered and what you expected to see.
- Suggesting a calculator: what you want to calculate and how you would use the result.
- Business and partnerships: a short description of your company and your proposal.
We read every message and aim to reply within a few working days.
Health questions
We cannot give personal medical or nutrition advice by email. For questions about your own health, please speak to a doctor or registered dietitian.