Loan Calculator

What This Calculator Shows You

Enter the loan amount, the annual interest rate, and the repayment period in years. The calculator gives you three figures: your monthly payment, the total you'll repay over the full term, and the total interest charged by the lender — so you can see the real cost of the loan, not just the monthly instalment.

This matters because a small difference in interest rate can change the total cost of a loan by thousands over five or ten years. Running the numbers before you sign anything is a good habit.

How the Loan Calculator Works

The calculator uses the standard amortisation formula for fixed-rate loans:

From the monthly payment, the total amount payable and total interest are derived: Total Payment = Monthly Payment × n and Total Interest = Total Payment − Principal.

Worked Example

How to Compare Loan Offers Effectively

Most people compare loans by monthly payment, but the total interest over the loan's life is often more revealing. A loan with a slightly lower monthly payment but a longer term can cost significantly more overall. Use this calculator to compare the full cost of two offers side by side:

• Enter the first loan's details and note the total interest figure.
• Clear the form and enter the second loan's details.
• Compare not just monthly payments but total repayment amounts.

Also watch for the APR (Annual Percentage Rate), which includes lender fees that the nominal interest rate excludes. A loan with a lower rate but high processing fees can end up more expensive than one with a slightly higher rate and no fees.

Ways to Reduce the Total Cost of a Loan

• Pay extra when possible — Even one extra payment per year significantly reduces your outstanding principal and total interest. Use the loan result here to see exactly how much you would save.
• Choose a shorter term if affordable — A 3-year loan at the same rate as a 5-year loan will have a higher monthly payment but save a meaningful amount on total interest.
• Compare the annual percentage rate (APR) — The APR includes fees, not just the interest rate. A loan with a slightly higher rate but zero processing fees might actually cost less than a lower-rate offer with heavy upfront charges.
• Refinance when rates drop — If interest rates fall significantly after you take out a fixed-rate loan, refinancing to a new lower rate can reduce your remaining payments considerably.

Fixed Rate vs. Variable Rate Loans

This calculator is designed for fixed-rate loans, where the interest rate (and therefore the EMI) stays the same throughout the repayment period. This is the most common type for personal loans and car loans.

Variable-rate loans (also called floating-rate loans) have an interest rate that changes periodically based on a reference benchmark such as the RBI repo rate or a bank's MCLR. Your monthly payment can go up or down over time. While variable rates often start lower, they carry the risk of higher payments if the benchmark rises. Home loans in India are frequently offered on a floating-rate basis, particularly for long tenures.

Common Mistakes to Avoid

• Entering the term in months instead of years — This calculator's tenure field is in years. Typing "36" meaning 36 months (3 years) instead of entering "3" will produce a wildly incorrect EMI. Use the EMI Calculator if your lender quotes tenure in months.
• Comparing loans by monthly payment alone — A lower EMI can hide a much higher total cost if it comes with a longer term. Always compare the total interest and total repayment figures, not just the monthly number.
• Ignoring fees when comparing offers — This calculator models principal, rate, and term only. Processing fees, prepayment penalties, and insurance add-ons can make a lower-rate loan more expensive overall than a higher-rate one with no fees.
• Assuming the rate is fixed when it isn't — This tool assumes the interest rate never changes. If you're evaluating a floating-rate loan, treat the result as a starting-point estimate only — your actual EMI will move with the benchmark rate.
• Forgetting to convert a monthly or reducing rate correctly — Some informal or short-term loans quote a flat monthly rate rather than an annual reducing-balance rate. Converting these incorrectly into the "annual interest rate" field will significantly understate or overstate the real EMI.

Frequently Asked Questions