Flat vs Reducing Rate EMI Calculator
What is a "flat rate" loan really costing you?
A flat rate charges interest on the full original principal for the entire tenure, even though you're paying that principal down every month: EMI = (P + P×R×years) ÷ (years×12). A reducing (or "diminishing") balance rate, the standard for home and most personal loans, charges interest only on what's still outstanding, which is why its EMI on the same headline rate comes out noticeably lower. Used-car loans, gold loans, and many personal/consumer loans are quoted flat — always ask the lender directly whether a quoted rate is flat or reducing before comparing offers.
The "true effective rate" above is the reducing-balance rate that would produce the exact same EMI as your flat-rate loan — a same-basis number you can actually compare against a bank's reducing-rate offer.
