Finance
Loan EMI Calculator
Monthly installment, total interest, and payoff summary.
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CalcoTools · Loan EMI Calculator · generated 8/23/2026, 12:25:06 PM
About the Loan EMI Calculator
Calculates your fixed monthly loan payment (EMI, or equated monthly installment) from the loan amount, interest rate, and repayment term, using the standard amortizing-loan formula.
How to use it
- Enter the Loan amount.
- Enter the Interest rate (% p.a.).
- Enter the Tenure in months.
- Read your monthly EMI, total interest, and total payment in the result panel.
Formula
EMI = P × r × (1+r)ⁿ ÷ [(1+r)ⁿ − 1]
P = principal, r = monthly interest rate, n = number of monthly payments
The standard fixed-rate amortizing-loan formula, derived from the present-value-of-an-annuity equation used across fixed-income lending — the same math the CFPB describes for how a mortgage or installment loan pays down.
Worked example
A $20,000 loan at 9% annual interest over 36 months comes to roughly $636/month, with about $2,900 in total interest over the life of the loan.
Recommendations
- • A slightly higher down payment or shorter term can meaningfully cut total interest — try a few scenarios.
- • Check whether your lender allows extra principal payments without a penalty; even small extra payments reduce total interest substantially.
- • Compare EMI across a couple of lenders' rates before committing — small rate differences add up over a multi-year term.
Frequently asked questions
Interest compounds on the outstanding balance each month, and early payments are weighted more toward interest than principal — that's normal for amortizing loans, not a calculation error.
Sources
- Consumer Financial Protection Bureau — How does paying down a mortgage work? — accessed 2026-08-20
Disclaimer
Illustrative estimate only, not financial or tax advice. Verify figures with a licensed adviser or your local tax authority.