How EMI is Calculated on Personal Loan in India with Example

When you take a personal loan in India, the most important thing you need to understand is your EMI (Equated Monthly Installment). EMI is the fixed amount you pay every month to the bank or NBFC until your loan is fully repaid. It includes both principal and interest components.

Understanding how EMI is calculated helps you choose the right loan amount, tenure, and lender. In this guide, we explain how EMI is calculated on personal loan in India with a simple example.

What is EMI?

EMI stands for Equated Monthly Installment. It is the fixed monthly payment that combines:

• Principal Amount (the actual loan you borrow)
• Interest (the cost of borrowing)

The EMI amount remains constant throughout the loan tenure, but the proportion of principal and interest changes every month.

The Formula Used to Calculate EMI

Banks and NBFCs in India use the following mathematical formula to calculate EMI:

Where:

• P = Principal Loan Amount
• r = Monthly Interest Rate (Annual Rate ÷ 12 ÷ 100)
• n = Loan Tenure in Months (Years × 12)

This is known as the Reducing Balance Method, which is used by almost all banks in India.

Step-by-Step Example: How EMI is Calculated

Let’s take a realistic example:

Loan Details:

• Principal Amount (P) = ₹5,00,000
• Annual Interest Rate = 12% per annum
• Loan Tenure = 3 years (36 months)

Step 1: Calculate Monthly Interest Rate (r) Monthly rate = 12% ÷ 12 = 1% per month In decimal = 1 ÷ 100 = 0.01

Step 2: Calculate Number of Months (n) n = 3 years × 12 = 36 months

Step 3: Apply the EMI Formula

After calculation, the EMI comes to approximately ₹16,607 per month.

Breakdown of Total Payment

• Monthly EMI = ₹16,607
• Total Amount Paid (36 months) = ₹16,607 × 36 = ₹5,97,852
• Total Interest Paid = ₹5,97,852 – ₹5,00,000 = ₹97,852

So, for a ₹5 lakh personal loan at 12% interest for 3 years, you will pay nearly ₹98,000 as interest.

How EMI Changes with Different Factors

• Higher Loan Amount → Higher EMI
• Higher Interest Rate → Higher EMI
• Longer Tenure → Lower EMI (but total interest increases significantly)
• Shorter Tenure → Higher EMI (but total interest is lower)

Example Comparison:

As you can see, longer tenure reduces your monthly burden but increases the total interest paid.

Tips to Reduce Your EMI or Total Interest

• Improve Credit Score: A score above 750 can get you lower interest rates (10–12%).
• Choose Shorter Tenure: If you can afford higher EMI, go for shorter tenure to save on interest.
• Compare Multiple Banks: Even 1% difference in rate matters a lot.
• Make Prepayments: Most banks allow prepayment after 6–12 months. Paying extra reduces principal faster and saves interest.
• Consider Balance Transfer: If you find a bank offering lower rate later, you can transfer your loan.

Important Things to Remember in 2026

• Most banks use the Reducing Balance Method for EMI calculation.
• Interest rates are usually floating (they can change if RBI changes Repo Rate).
• Processing fee (1%–3%) and GST are charged separately.
• Late payment attracts heavy penalties and affects your credit score.

Final Thoughts

Understanding how EMI is calculated on a personal loan helps you borrow smartly and avoid financial stress. Always use an online EMI calculator (available on BankBazaar, Paisabazaar, or bank websites) before finalizing any loan. Compare at least 4–5 banks and choose the one that offers the lowest effective interest rate.

Remember: Lower EMI is not always better if the tenure is very long. The goal should be to minimize the total interest paid while keeping EMI comfortable for your monthly budget.

Before taking any personal loan, calculate your EMI properly, check your repayment capacity, and borrow only what you genuinely need.