Interest Rate Calculator

Some offers are advertised only by EMI or by a flat rate that doesn't directly state the effective annual rate — this tool lets you reverse-calculate the true rate from the EMI, loan amount, and tenure to compare offers fairly.

This tool solves for the rate itself when you know the EMI, loan amount, and tenure. Flat to Reducing Rate instead converts a known flat rate into its equivalent reducing-balance rate — a specific type of conversion, not a general solve.

Yes — since some lenders advertise a flat rate that sounds lower than the true reducing-balance equivalent, calculating the effective rate from the actual EMI can reveal the real cost of borrowing.

The loan principal, the tenure, and the EMI amount — from these three, the effective annual interest rate is derived.

It approximates the effective annual interest rate on the loan; APR calculations in some markets also factor in fees, which this calculator does not include unless you add them to the principal.