How is personal loan EMI calculated?

Using the same reducing-balance formula as any other loan: EMI = P × r × (1 + r)ⁿ ÷ ((1 + r)ⁿ − 1). Interest each month is charged on the balance outstanding, and the instalment stays fixed for the tenure.

Why are personal loan rates so much higher than home loan rates?

A personal loan is unsecured — there is no asset the lender can recover if it is not repaid. That risk is priced into the rate, which is why unsecured lending commonly runs at 10–24% while secured housing loans sit far lower.

What is the difference between a flat rate and a reducing-balance rate?

A reducing-balance rate charges interest only on what you still owe. A flat rate charges it on the full original amount for the entire tenure, so the same quoted number costs roughly twice as much. This calculator uses reducing balance, which is what regulated lenders disclose.

Should I take a longer tenure to reduce my EMI?

It will reduce the monthly commitment and increase the total interest, and at personal loan rates that increase is steep — the tenure scenario above shows the exact trade-off for your amount. Whether the lower instalment is worth the extra cost depends on your cash flow.

Can I prepay a personal loan?

Usually yes, but often with a charge of 2–5% of the outstanding amount, and some lenders bar prepayment during the first year. Check your loan agreement, then use the prepayment calculator to weigh the interest saved against the penalty.

Does this calculator include processing fees?

No. It models interest on the principal only. Since personal loan fees are typically 1–3% and are deducted upfront, add them separately when comparing offers.

Loan · FINANCIAL TOOLS

Personal Loan EMI Calculator

Work out the instalment and interest cost on an unsecured personal loan.

Understand the calculation

Calculation logic, formula, example and guardrails behind the estimate.

How it works

The mathematics is identical to any other reducing-balance loan: a fixed instalment, interest charged monthly on the outstanding balance, and the split inside the instalment shifting from interest to principal over time.

What differs is the shape. Because the tenure is short, the balance falls quickly and the interest portion drops away faster than on a long loan. Even so, the high rate means total interest is a substantial share of what you repay.

More detail

On a three-year loan at 14%, roughly a quarter of the first instalment is interest — far less lopsided than a home loan, but on a much larger instalment relative to the amount borrowed.

Processing fees matter more here than on secured loans. A 2% fee on a ₹5 lakh loan is ₹10,000 deducted upfront, which raises the effective rate noticeably on a short tenure. That fee is not modelled below.

To weigh clearing the loan early against the interest it would save, use the prepayment calculator.

For a car, education or gold loan where the tenure is set in months, use the general loan calculator.

Formula

EMI = P × r × (1 + r)ⁿ ÷ ( (1 + r)ⁿ − 1 )

The same reducing-balance formula used for every other loan. Beware of lenders quoting a flat rate instead — a flat rate charges interest on the full original amount for the whole tenure and is close to double the equivalent reducing-balance rate.

EMI: Equated monthly instalment
P: Principal — the amount sanctioned
r: Monthly interest rate as a decimal (14% a year is 0.011667)
n: Number of monthly instalments (years × 12)

Worked example

A ₹5,00,000 personal loan at 14% for 3 years.

01Monthly rate (r)14 ÷ 12 ÷ 100 ≈ 0.011667
02Instalments (n)3 × 12 = 36
03EMI≈ ₹17,089
04Total payable≈ ₹6,15,192
05Total interest≈ ₹1,15,192
06Interest share of repayment≈ 19%

About ₹1.15 lakh of interest on a ₹5 lakh loan over three years. Stretching the same loan to five years drops the instalment by roughly ₹5,450 a month but adds around ₹82,000 of interest.

Important considerations

01
Check whether the rate is reducing-balance or flat
A 7% flat rate over three years is roughly equivalent to 13% reducing-balance. Always ask which basis is being quoted, and compare on the annual percentage rate the lender is required to disclose.
02
Processing fees change the real cost
On a short tenure, a 2% upfront fee adds more to the effective rate than it appears to. Add the fee to the interest and divide by the amount you actually received to judge the true cost.
03
Shorter tenures cost far less overall
Because the rate is high, each extra year of tenure adds interest quickly. If the instalment on a shorter tenure is affordable, it is usually the cheaper choice by a wide margin.
04
Prepayment penalties can undo the benefit
Many personal loans charge 2–5% to foreclose, and some bar prepayment for the first year. Check those terms before assuming you can clear the loan early.
05
Consider whether a secured option exists
Borrowing against an existing asset — a property, securities or gold — is typically priced several percentage points lower. Whether that is appropriate depends on your situation and on what you are willing to pledge.

Limitations

Processing fees of 1–3% are excluded and are usually deducted from the disbursed amount, so you receive less than the sanctioned figure while paying interest on all of it.
Foreclosure and part-prepayment charges are common on unsecured loans and are not modelled here.
The rate you are offered depends heavily on your credit score, income and employer, and can differ substantially from any published figure.
It assumes a reducing-balance rate. If a lender quotes a flat rate, the effective cost is much higher than the same number suggests.

Frequently asked questions

Common questions about the personal loan emi calculator and the assumptions behind it.

Next useful checks

Move from this result to the next decision without hunting through the full calculator list.

Home Loan Affordability CalculatorCheck whether the EMI fits your monthly budget.Loan Prepayment CalculatorSee how much extra payment can reduce interest.Loan Balance Transfer CalculatorCompare whether switching lenders saves money.

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Disclaimer

This calculator is provided for general information and planning only. It is not investment, tax or legal advice, and it does not take your personal circumstances into account. Outputs are estimates based on the assumptions stated on this page, exclude taxes and charges unless said otherwise, and market-linked returns are not guaranteed — the value of investments can fall as well as rise. Lending terms, rates and eligibility are decided by the lender. For advice on your own situation, speak to a qualified professional, several of whom you can consult on Finvestalk.