Flat vs Reducing Rate
A flat-rate loan charges interest on the original principal for every year of the tenure. A reducing-balance loan charges interest only on what is still outstanding. This tool converts one quote into the other so you can compare them.
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How the Flat vs Reducing Rate works
A flat-rate loan charges interest on the original principal for every year of the tenure. A reducing-balance loan charges interest only on what is still outstanding. This tool converts one quote into the other so you can compare them.
Formula / method. Flat total interest = P × r_flat × years. Effective reducing rate is the r that produces the same EMI / total interest on a reducing schedule.
When to use it. Use it whenever a dealer or NBFC quotes a ‘flat’ rate. The reducing equivalent is the number to put next to a bank EMI offer.
How to run a comparison
- Open Flat vs Reducing Rate from Home search, the Finance Studio hub, or this URL.
- Copy amounts, rates or dates from a document you already have — not a round marketing figure.
- Read the headline result and any breakdown (schedule, slabs, or intermediate rows).
- Change one input at a time so you can see what actually moves the answer.
- Cross-check with a related calculator below, then confirm statutory rates before you act.
Nothing you type is uploaded for server-side processing. Save or screenshot an output if you need it later; we do not keep a server-side history.
Notes and assumptions
Conversion assumes a standard monthly reducing EMI. Fees outside interest are not included unless you add them.
Results are estimates for education and planning only. They are not financial, tax, medical, or legal advice. Slabs, scheme rates and product terms change; verify against official notifications or a qualified professional before acting.
Related calculators in Finance Studio
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- Car Loan EMI — Calculate auto loan monthly payments and interest.
- Loan Prepayment & Savings — Calculate interest savings, tenure reduction & EMI reduction from prepayments.
- Loan Eligibility — Check how much a bank will actually lend you before you commit.
- Simple Interest — Calculate basic interest for fixed principal and tenure.
Browse the full Finance Studio hub or return to the Calculator Universe home catalog for every tool.
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