What Is an EMI?

When you take a loan, you usually repay it through a fixed monthly payment called an EMI (Equated Monthly Installment). Each EMI includes principal (the amount borrowed) and interest (the lender’s charge). Early payments contain more interest; later payments repay more principal.

The EMI Formula

EMI = P × R × (1 + R)^N ÷ ((1 + R)^N − 1)

• P = loan principal
• R = monthly interest rate
• N = number of monthly payments

For an annual rate, R = annual rate ÷ 12 ÷ 100. For a monthly rate, R = monthly rate ÷ 100.

Examples

Car loan

• Amount: $20,000
• Interest: 9% per year
• Term: 5 years (60 months)
• Monthly rate: 0.09 ÷ 12 = 0.0075
• EMI ≈ $415.17 per month

Home loan

• Amount: $300,000
• Interest: 6.5% per year
• Term: 30 years (360 months)
• EMI ≈ $1,896.20 per month

Credit-card balance

• Amount: $5,000
• Interest: 1.5% per month
• Repayment term: 24 months
• Monthly payment ≈ $249.62

What Changes the EMI?

• A larger loan or higher interest rate increases the EMI.
• A longer term lowers the EMI but usually increases total interest.
• Fees, variable rates, taxes, and rounding may make a lender’s figure different.

You do not need to calculate this manually. My EMI Planner can compare loan amounts, rates, and repayment periods.