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EMI Calculator

Free web tool: EMI Calculator

EMI Calculator

Calculate your Equated Monthly Installment for loans.

Monthly EMI

$4,339

Principal Amount

$500,000

Total Interest

$541,388 (52.0%)

Total Payment

$1,041,388

About EMI Calculator

The EMI Calculator computes your Equated Monthly Installment — the fixed monthly payment you make on a loan that covers both principal repayment and interest charges. Enter your loan amount (principal), annual interest rate, and repayment tenure in years, and the calculator instantly shows your monthly EMI, total interest paid over the loan lifetime, and the total amount repaid.

EMI calculators are indispensable for anyone taking out a mortgage, auto loan, personal loan, or any other installment-based borrowing. By comparing different loan amounts, interest rates, and tenures you can find the most affordable repayment schedule before committing to a lender. The formula used is the standard reducing-balance EMI formula: EMI = P × r × (1 + r)^n / ((1 + r)^n − 1), where P is the principal, r is the monthly interest rate (annual rate ÷ 12), and n is the number of monthly installments.

All calculations run entirely in your browser with no data sent to any server. Results update in real time as you type, letting you quickly compare scenarios. The tool is free, requires no account, and works on any device.

Key Features

  • Real-time EMI calculation using the standard reducing-balance amortization formula
  • Shows monthly EMI, total interest paid, total repayment amount, and interest-to-total ratio
  • Accepts any loan amount, interest rate (annual), and tenure in years
  • Instantly visible interest percentage so you can gauge the true cost of borrowing
  • Useful for mortgages, auto loans, personal loans, student loans, and business loans
  • 100% client-side — no data is ever sent to a server
  • Dark mode support for comfortable use in any lighting environment
  • No sign-up, no download, and completely free to use

Frequently Asked Questions

What is EMI?

EMI stands for Equated Monthly Installment. It is the fixed amount a borrower pays to a lender every month until the loan is fully repaid. Each EMI payment covers a portion of the outstanding principal and the interest accrued on the remaining balance.

What formula does this EMI Calculator use?

The calculator uses the standard reducing-balance formula: EMI = P × r × (1 + r)^n / ((1 + r)^n − 1), where P is the loan principal, r is the monthly interest rate (annual rate divided by 12 and by 100), and n is the total number of monthly installments (years × 12).

How do I reduce my EMI?

You can reduce your monthly EMI by increasing the loan tenure (spreading payments over more months), negotiating a lower interest rate, or making a larger down payment to reduce the principal. Keep in mind that a longer tenure reduces monthly EMI but increases total interest paid.

What is the difference between EMI and simple interest repayment?

EMI uses a reducing-balance (amortization) method where each payment first covers the interest on the outstanding balance and then reduces the principal. Simple interest calculations apply interest only on the original principal throughout the loan period, which gives different totals.

Can I use this for a mortgage or home loan?

Yes. Enter the home loan amount as the principal, the lender's annual interest rate, and the tenure (typically 15 to 30 years). The calculator will show your monthly mortgage payment, total interest over the full term, and total amount repaid.

Why does total interest increase with longer tenure?

A longer tenure lowers your monthly EMI because payments are spread over more months, but the principal remains outstanding for a longer period, accruing interest at each compounding cycle. The cumulative interest therefore grows with tenure even though individual payments are smaller.

What happens if I enter 0 for the interest rate?

If the interest rate is 0 or left empty, the calculator will not display results because the EMI formula requires a positive rate. For a zero-interest arrangement, simply divide the loan amount by the number of months to get the monthly installment.

Is this calculator suitable for floating-rate loans?

This calculator assumes a fixed interest rate for the entire tenure. For floating-rate loans, you would need to recalculate whenever the rate changes. You can use this tool to estimate EMI at any given rate snapshot to understand the impact of rate changes on your monthly payment.