EMI, SIP and Compound Interest Explained — With Calculators for Each

Three formulas decide most household money outcomes: what loans cost you (EMI), what investing earns you (SIP), and the engine behind both (compound interest). Understand these and most financial products stop being confusing.

EMI: what borrowing really costs

A ₹10 lakh loan at 9% for 5 years means an EMI of about ₹20,758 — and total interest of ₹2.45 lakh. Stretch it to 10 years and the EMI drops to ₹12,668, but total interest balloons to ₹5.2 lakh. Run your own numbers in the EMI calculator and always look at the total-interest line, not just the monthly figure. Compare loan offers with the loan calculator before any bank meeting.

SIP: compounding working for you

₹5,000/month at a 12% assumed return becomes roughly ₹11.6 lakh in 10 years and ₹50 lakh in 20 — while you invested only ₹6 lakh and ₹12 lakh. The SIP calculator shows invested vs gained side by side; the gap between them is why starting at 25 beats starting at 35 with double the amount.

Compound interest: the engine itself

The compound interest calculator lets you change compounding frequency and watch the effect: ₹1 lakh at 8% for 10 years grows to ₹2.16 lakh compounded annually but ₹2.22 lakh compounded monthly. Compare with simple interest (₹1.8 lakh) to see exactly what compounding adds.

The supporting cast

Fixed deposits with quarterly compounding: FD calculator. Tax math on invoices: GST calculator. Salary negotiations: hike calculator. Saving toward a target: savings goal calculator.

All calculators give estimates for planning. Confirm final figures with your bank or advisor — and remember market-linked returns are assumptions, not promises.