SmartRates

EMI Calculator — Equated Monthly Installment

Compute your monthly EMI for any loan. See principal vs. interest breakdown and full repayment cost.

📅Loan Parameters
$
$1,000$500,000
%
1.00%30.00%
mo
6 mo360 mo

48 months = 4.0 years

Principal vs. Interest

$83%Principal
Principal Amount
79.4%

$25,000

Total Interest
20.6%

$5,148

What This Calculator Does

The EMI Calculator computes your Equated Monthly Installment — the fixed payment due each month on any installment loan, whether it's a personal loan, auto loan, or other fixed-term financing. EMI combines both principal and interest into one consistent payment for the life of the loan.

Enter your loan amount, annual interest rate, and tenor (term in months) to see your EMI, the total interest you'll pay over the loan's life, and a visual split of how much of your total repayment goes to principal versus interest.

Formula

EMI = P × r × (1+r)ⁿ / [(1+r)ⁿ − 1]

P is reduced gradually with each payment; in the early months a larger share of your EMI covers interest, and a larger share goes toward principal as the balance shrinks.

  • PPrincipal — the total loan amount borrowed
  • rMonthly interest rate (annual rate ÷ 12)
  • nLoan tenor in months
  • EMIFixed monthly installment (principal + interest)

Examples

Example 1: $25,000 loan at 9.5% for 48 months

P = $25,000, monthly rate = 9.5% ÷ 12 = 0.7917%, n = 48 payments.

EMI ≈ $626.99 — total interest ≈ $5,095.52, total payment ≈ $30,095.52 (about 20.4% of principal in interest).

Example 2: Same $25,000 loan, shorter 24-month tenor

Same principal and rate, but n = 24 payments instead of 48.

EMI ≈ $1,142.61 — total interest drops to ≈ $2,422.64, cutting interest cost by more than half.

Example 3: Smaller loan at a lower rate (7%) over 36 months

P = $10,000, monthly rate = 7% ÷ 12 = 0.5833%, n = 36 payments.

EMI ≈ $308.77 — total interest ≈ $1,115.72, total payment ≈ $11,115.72.

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Methodology

EMI = P·r(1+r)^n / [(1+r)^n − 1], where r = monthly rate (annual ÷ 12). Standard fixed-rate formula used by US lenders.

Frequently Asked Questions

What is EMI (Equated Monthly Installment)?+

EMI is a fixed monthly payment you make to repay a loan over a set period. Each payment covers both principal and interest. In early months, a larger share goes to interest; over time, more goes to principal. This is called loan amortization.

How is EMI calculated?+

EMI = P × r × (1+r)^n / [(1+r)^n − 1], where P = loan principal, r = monthly interest rate (annual rate ÷ 12), and n = total number of monthly payments. This calculator uses the standard flat-rate formula used by US lenders.

How can I reduce my EMI?+

You can reduce EMI by: (1) negotiating a lower interest rate, (2) increasing the loan tenor (more months = lower payment, but more total interest), (3) making a larger down payment to reduce the principal, or (4) refinancing to a lower rate after improving your credit score.

Disclaimer: Calculations are for informational purposes only and do not constitute professional financial advice. Please consult with a certified professional before making financial decisions.