We would love to hear from you. Whether you found a mistake, have an idea for a new formula or calculator, or just want to say hello, please get in touch.
We usually reply within 2–3 working days.
What to include
- The page address (URL) your message is about, if any
- What you expected and what happened, for problems
- Your suggestion or correction, for ideas
Corrections
Accuracy matters to us. If you spot an error on any page, tell us and we will check it and fix it quickly.
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