Contact
Get in touch.
Spot a wrong formula, a typo, or have an idea for a calculator that isn't here yet? Send it over.
Replies usually go out within a few days. For corrections, please include the calculator page and what you think is wrong — links to a source paper or reference are appreciated.
What to send
- Bug reports — what you entered and what the result was
- Formula corrections with a source
- Suggestions for new calculators
- Partnership or sponsorship enquiries