Get in touch
Contact KalkWise
Found an error in a calculation? Want to suggest a new calculator? Have a question about our methodology? We read every message and aim to respond within 2 business days.
Email us directly
The fastest way to reach us. Include the calculator name and a brief description of the issue or suggestion.
hello@kalkwise.comWhat to include in your message
Reporting a calculation error
Tell us which calculator, the inputs you entered, the result you got, and what you expected. Screenshots help.
Suggesting a new calculator
Briefly describe what you want to calculate and how you would use it. We prioritise by demand and complexity.
Advertising & business enquiries
KalkWise is funded by Google AdSense display advertising. We do not accept sponsored results or paid placements. For other partnership enquiries, email us with the subject line 'Partnership'.
Privacy or data requests
KalkWise does not collect personal data. All calculations run locally in your browser. See our Privacy Policy for full details.