EMI Loan Calculator

Calculate your Equal Monthly Installment (EMI), total interest, and what a principal-only plan would cost over the same loan term.

This tool runs entirely in your browser. Your loan amounts, rates, and terms are never sent anywhere.

Loan Parameters

Formula and Parameters

EMI is calculated using the standard amortization formula. We also compare against a principal-only payment plan to show total interest savings.

EMI Formula
EMI = P × r × (1+r)n ÷ ((1+r)n − 1)
Where
P = principal, r = monthly rate (annual ÷ 12 ÷ 100), n = total months
Principal-Only
Monthly = P/n + Balance × r

Our Test Data

We verified calculations against industry-standard amortization tables:

Test CaseExpected EMIOur ResultMatch
$50,000 · 7.5% · 5 yr$1,006.27$1,006.27✅
$200,000 · 6.0% · 30 yr$1,199.10$1,199.10✅
$10,000 · 12% · 3 yr$332.14$332.14✅
$150,000 · 4.5% · 15 yr$1,147.49$1,147.49✅

All values checked against calculator.net amortization tables. Last verified: September 2026.

When Not To Use This Calculator

Frequently Asked Questions

What is EMI and how is it different from principal-only?

EMI (Equal Monthly Installment) is a fixed monthly payment that includes both principal and interest, designed to pay off the loan completely by the end of the term. A principal-only plan pays the same principal amount each month plus interest on the remaining balance — monthly payments decrease over time.

Does this calculator include mortgage insurance or taxes?

No. This calculator computes the base EMI using only principal, interest rate, and term. Additional costs like PMI (mortgage insurance), property taxes, closing fees, or servicing charges are not included. Consult your lender for the full monthly obligation.

Is my loan data stored or sent anywhere?

No. All calculations happen entirely in your browser. Loan amounts, rates, and terms are never transmitted to any server.

Which plan is better — EMI or principal-only?

EMI offers predictable, fixed monthly payments, making budgeting easier. Principal-only results in lower total interest paid but higher initial monthly payments. The right choice depends on your cash flow, interest rate environment, and how long you plan to hold the loan.