Loan EMI Calculator
Calculate monthly payments (EMI), total interest expenses, and complete amortization logs for home loans, car loans, or personal loans. Use the visual split chart to optimize your borrowing tenure.
Last Updated: June 2026•Verified By: GSTWaala Editorial Team
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How to Use the Loan EMI Calculator
- Enter the total principal Loan Amount you plan to borrow in the Loan Amount input field.
- Enter the annual Interest Rate (e.g. 8.5) charged by your bank or financial institution.
- Enter the tenure of the loan and select the unit as either 'Years' or 'Months' using the select dropdown.
- Review the monthly EMI value, total interest payable, total repayment amount, and the Canvas donut chart visual split.
Mathematical Formula & Calculations
EMI calculations are based on reducing balance interest schedules calculated monthly:
\[\text{EMI} = \frac{P \times r \times (1+r)^n}{(1+r)^n - 1}\]
Where: P = Principal amount, r = Monthly interest rate (Annual % / 12 / 100), n = Tenure in months
Frequently Asked Questions
An EMI is a fixed payment amount made by a borrower to a lender at a specified date each calendar month. EMIs consist of both a principal component and an interest component. In the initial years of tenure, interest comprises the larger portion of the EMI, which gradually shifts to principal repayment towards the end of the loan.
EMI is calculated using the reducing balance formula: EMI = [P x r x (1+r)^n] / [(1+r)^n - 1], where P is the Principal loan amount, r is the monthly interest rate (annual rate divided by 12, then by 100), and n is the loan tenure in months.
A longer loan tenure reduces your monthly EMI installment, making it easier on your monthly budget. However, it significantly increases the total interest payable over the lifetime of the loan. A shorter tenure results in higher monthly EMIs but helps you close the loan faster and save massive interest costs.
Reducing balance amortization means that interest is charged monthly only on the outstanding principal balance of the loan, rather than the original loan amount. As you pay off principal each month, the interest amount decreases, accelerating the principal recovery rate.
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Compliance Note
All calculations are updated to reflect the tax codes, slabs, and deductions in effect for Financial Year 2025-26 (Assessment Year 2026-27). This tool runs entirely client-side; no data is transmitted or stored on our servers.
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