EMICalcs: 36 free Indian finance calculators — EMI, SIP, tax & more

Hi PH! I built EMICalcs because every Indian finance calculator I could find was either buried in ads, out of date on tax rules, or wanted a signup just to give me an EMI number. It's 32 calculators plus 4 comparison tools, all free: EMI for home/car/personal loans, credit-card EMI including the 18% GST on interest that most people miss, SIP/step-up/goal SIP, PPF/EPF/NPS/Sukanya Samriddhi, FD/RD, and a full FY 2026-27 income-tax calculator that runs the new and old regimes side by side. Three things I'm glad I did: every calculator has automated math tests, so the site won't build if a formula drifts; results are shareable as a URL or WhatsApp message; and any calculator can be embedded on someone else's site for free. Would love feedback, especially on the math and on which calculator India actually needs next.