Loan Interest Calculator
Finance & InvestmentSee the EMI, the total interest, and how each payment splits over the term.
Runs entirely in your browser — nothing is uploaded
Features
- EMI, total interest and total repayment in one view.
- Full amortisation schedule, by year or by month.
- Shows how much of every rupee repaid is interest.
- Works for any loan — personal, business, education or vehicle.
- Results update as you type, with no button to press.
How to use the Loan Interest Calculator
- 1Enter the loan amount, the interest rate and the tenure.
- 2Read the EMI and the total interest.
- 3Open the schedule to see how the split moves from interest to principal.
Frequently asked questions
How is loan interest calculated?
On the outstanding balance each month, not the original amount. Your EMI stays the same but the split inside it moves: early on most of it covers interest, later most of it reduces the balance. That is why a loan repaid halfway through has usually cleared far less than half the principal.
Why is my total interest so much higher than the rate suggests?
Because the rate is annual and the loan runs for many years. A 20-year loan at 8.5% pays roughly as much in interest as the amount borrowed — the tool shows the interest as a share of everything you repay, which is usually the number that surprises people.
Does a longer tenure cost more?
Much more. Stretching a loan lowers the EMI but raises the total interest sharply, because the balance stays high for longer. Compare the total repayment column, not just the monthly figure — a tenure that halves the EMI can more than double the interest.
What is an amortisation schedule?
A month-by-month table of how each payment splits between interest and principal, and what is left owing. It is what tells you whether prepaying is worthwhile and how much of the loan you have really cleared.