Contact

We welcome corrections, questions and suggestions.

Email

Write to calculators@haatbeat.in.

When reporting a result, include the calculator, the values you entered and what you expected. Please do not send sensitive personal or financial details.

Privacy and grievances

Privacy requests and complaints go to our grievance officer, Sachin, at the same address. See the Privacy policy for response times.

We cannot give personal advice

We are happy to explain how a calculator works, but we cannot advise on your personal finances, taxes or health.

Last reviewed 1 October 2026 by Sachin.