EMI Calculator

Monthly EMI, total interest and amortization — instantly.

₹10,00,000
20 yr

EMI Calculator

Monthly EMI₹8,678 /mo
  • Principal₹10,00,000
  • Total interest₹10,82,777
  • Total payment₹20,82,777

Where your money goes

  • Principal ₹10,00,000
  • Interest ₹10,82,777

How is EMI calculated?

EMI stands for Equated Monthly Instalment — the fixed amount you pay your lender every month until the loan is cleared. Each EMI has two parts: interest on the outstanding balance and a repayment of principal. Early in the loan the interest share is large; as the balance falls, more of every EMI goes towards principal. This is the reducing-balance method that every Indian bank and NBFC uses.

The EMI itself stays the same throughout a fixed-rate loan, which is what makes budgeting predictable.

EMI = P × r × (1 + r)ⁿ ÷ [(1 + r)ⁿ − 1]
where P = principal (loan amount); r = monthly interest rate = annual rate ÷ 12 ÷ 100; n = tenure in months

EMI for ₹10 lakh, ₹20 lakh and ₹50 lakh loans

At 8.5% over 20 years, the EMI scales linearly with the loan amount, so once you know the EMI for ₹10 lakh you can read off the rest. The total interest, though, is nearly as large as the principal itself over a long tenure — which is why the tenure you choose matters as much as the rate.

EMI at 8.5% for a 20-year loan
₹10,00,000₹8,678 / mo
₹20,00,000₹17,356 / mo
₹50,00,000₹43,391 / mo

How tenure changes your total interest

A longer tenure lowers your monthly EMI but raises the total interest you pay, because your money is borrowed for longer. On a ₹10 lakh loan at 8.5%, stretching from 15 years to 25 years cuts the EMI by roughly ₹1,800 a month — but adds several lakh rupees of interest over the life of the loan. Use the tenure slider above to see both numbers move together before you commit.

Fixed vs floating rate EMIs

A fixed-rate loan keeps the same EMI for the whole tenure. A floating-rate loan is linked to an external benchmark (usually the RBI repo rate), so your EMI or your tenure changes when rates move. Most Indian home loans are floating; most car and personal loans are fixed. This calculator assumes a fixed rate — for a floating loan, re-run it whenever your lender resets the rate.

Frequently asked questions

Does this EMI calculator use reducing balance?

Yes. It uses the standard reducing-balance method, the same one banks and NBFCs use, where interest is charged only on the outstanding principal each month.

What is the formula for EMI?

EMI = P × r × (1+r)ⁿ ÷ [(1+r)ⁿ − 1], where P is the loan amount, r is the monthly interest rate and n is the number of months.

Does prepayment reduce my EMI or my tenure?

By default most lenders keep your EMI the same and shorten the tenure, which saves the most interest. You can usually ask to reduce the EMI instead. Either way, prepaying early saves far more than prepaying late.

What happens if an EMI bounces?

A bounced EMI usually attracts a penalty (often ₹300–₹750 plus taxes) and can hurt your credit score if it stays unpaid. Repeated bounces can trigger higher penal interest.

Is the EMI fixed for the entire tenure?

On a fixed-rate loan, yes. On a floating-rate loan the EMI stays fixed only until the next rate reset, after which the lender may change the EMI or the remaining tenure.

Guides that use this calculator

  • How banks decide how much home loan you getLenders cap your total EMIs at roughly 40–50% of monthly income — a ratio called FOIR. At ₹1 lakh income and a 40% cap, an 8.5% 20-year loan tops out near ₹46 lakh. The full mechanics: existing EMIs, rate sensitivity, co-applicants, and what actually raises the number.

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