Loan Interest Rate Calculator
Reverse-calculate the effective interest rate on any loan from the EMI amount, principal, and tenure.
Your Monthly EMI
₹2,08,33,333
Principal
₹10,00,000
Total Interest
₹1,24,90,00,000
Total Payable
₹1,25,00,00,000
Breakdown
Principal: ₹10,00,000 (0%)
Total Interest: ₹1,24,90,00,000 (100%)
Interest-to-Principal: 124900%
📊 Interactive EMI Breakdown
Principal vs Interest
Year-by-Year Payment Split
Loan Scenario Comparison
| Metric | Your plan | +1% Interest (25001.0%) | +12 Months (72mo) |
|---|---|---|---|
| Monthly EMI | ₹2,08,33,333 | ₹2,08,34,167 ↑ ₹834 | ₹2,08,33,333 |
| Total Interest | ₹1,24,90,00,000 | ₹1,24,90,50,000 ↑ ₹50,000 | ₹1,49,90,00,000 ↑ ₹25,00,00,000 |
| Total Payable | ₹1,25,00,00,000 | ₹1,25,00,50,000 | ₹1,50,00,00,000 |
Finding the Hidden Interest Rate
Many lenders quote flat rates, processing fees, or EMI amounts without clearly disclosing the effective annual rate. This calculator uses iterative numerical methods to back-calculate the exact reducing-balance interest rate from your actual EMI, so you can compare apples-to-apples across lenders.
Example: A car dealer offers ₹10L at "8% flat" for 5 years. EMI = ₹18,333. The effective reducing-balance rate is actually 14.8% — nearly double the quoted flat rate.