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Reducing vs Flat Rate Calculator – Convert and Compare Interest Rates

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Reducing vs Flat Rate Calculator – Convert and Compare Interest Rates

Lenders quote loan interest in two ways: a flat rate and a reducing-balance rate. The two look similar on paper but cost very different amounts. Use the CibilBazaar Reducing vs Flat Rate Calculator to convert a flat rate into its equivalent reducing rate (or the other way round) and compare the EMI and total interest.

Enter the loan amount, the quoted interest rate and the tenure, choose the conversion direction, and see the real cost of the loan instantly.

You may also find our EMI Calculator and Loan Prepayment Calculator useful.

Flat Rate vs Reducing Rate – What Is the Difference?

In a flat-rate loan, interest is charged on the full original loan amount for the whole tenure, even though you keep repaying the principal. In a reducing-balance loan, interest is charged only on the outstanding principal, so it falls as you repay.

Flat rate: Interest = P × flat rate × years, and EMI = (P + Interest) ÷ number of months. Reducing rate: EMI = [P × r × (1 + r)^n] ÷ [(1 + r)^n − 1], with r as the monthly rate. The equivalent reducing rate is the rate at which the standard EMI formula gives the same EMI as the flat-rate loan.

How to Use the Reducing vs Flat Rate Calculator

01

Enter the Loan Amount

Type the amount you plan to borrow.

02

Choose the Direction

Pick Flat → Reducing or Reducing → Flat.

03

Enter the Quoted Rate

Add the rate the lender has offered.

04

Set the Tenure

Choose the repayment period in months or years.

05

Compare the Results

Check the equivalent rate, EMI and total interest for both loan types.

Why the Equivalent Rate Is Higher

Interest on the Full Amount

A flat rate ignores the principal you have already repaid, so interest stays high all the way.

Longer Tenure Helps Less

The gap between flat and reducing rates widens as the tenure grows.

Rule of Thumb

The equivalent reducing rate is often roughly 1.6 to 1.9 times the flat rate, depending on tenure.

Benefits of Using the Reducing vs Flat Rate Calculator

See the True Cost

Know the real annual rate behind a flat-rate offer.

Compare Offers Fairly

Put flat and reducing quotes on the same footing before choosing.

Avoid Costly Surprises

Spot loans that look cheap but cost more over the full tenure.

Download and Share

Save the comparison as a file or share the link.

Things to Keep in Mind

Always ask the lender for the reducing-balance rate or the annual percentage rate (APR), including all fees, before you compare offers.

Processing fees and other charges are not included in this calculation. Results are estimates only.

Frequently Asked Questions (FAQs)

1. What is a flat interest rate?

A flat interest rate is charged on the original loan amount for the entire tenure, regardless of how much principal you have already repaid.

2. What is a reducing balance interest rate?

A reducing-balance rate is charged on the outstanding principal only. As you repay each EMI, the interest portion falls.

3. Which is cheaper, a flat rate or a reducing rate?

At the same quoted number, a reducing rate is always cheaper. For example, 8% reducing costs far less than 8% flat.

4. How do I convert a flat rate to a reducing rate?

Work out the flat-rate EMI, then find the interest rate at which the standard EMI formula gives that same EMI. This calculator does it for you instantly.

5. Do home and car loans use flat or reducing rates?

Home loans in India are quoted on a reducing-balance basis. Some vehicle, two-wheeler, consumer-durable and small personal loans may be quoted on a flat basis. Check your loan offer.

6. Does this calculator include processing fees?

No. Fees, GST and other charges are not included, so the effective cost of your loan may be higher.

Disclaimer: Rate conversions are estimates provided for informational purposes only and do not constitute financial advice or a loan offer. CibilBazaar is a loan marketplace and is not a bank or NBFC. Please verify the latest information with the relevant bank or NBFC before submitting your application.

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