Contact

The fastest way to reach me is email:

I read every message and reply within 48 hours, usually faster.

What I'd love to hear

A calculator you wish existed
A bug, miscalculation, or typo on an existing one
A formula you think I got wrong (with a source if you have one)
A partnership, press, or collaboration request

What I can't do over email

I can't give you personal financial, medical, legal, or tax advice. The calculators on this site are reference tools, not professional consultations. If you're making a real decision, please consult a qualified advisor.

For everything else — I'm listening.

— Gaurav