Interest Rate Calculator
Find the implied annual interest rate from loan amount, EMI and tenure.
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About this calculator
When you know the EMI quoted and want to verify the true rate — useful for comparing flat-rate quotes vs reducing-balance offers.
Formula
Solve EMI = P·r(1+r)^n/((1+r)^n−1) for r via bisection; annual = r×12×100.
Frequently Asked Questions
Flat vs reducing rate?
Flat 10% on 5-year loan ≈ 18–19% reducing. Always compare reducing-balance rates.