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Free EMI Calculator Online
Calculate loan EMI, total interest, payoff time and the effect of extra monthly payments with a detailed amortization view.
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At a glance
EMI Calculator — Calculate loan EMI, total interest, payoff time and the effect of extra monthly payments with a detailed amortization view.
Free for the core workflow, no account required. The calculation is performed locally in the browser from the values you enter.
About EMI Calculator
Calculate loan EMI, total interest, payoff time and the effect of extra monthly payments with a detailed amortization view.
An EMI calculator estimates the regular payment for a fixed-rate amortizing loan. Extra-payment scenarios show how additional monthly principal can change the payoff period and interest cost. EMI (Equated Monthly Installment) spreads a loan into equal monthly payments covering both principal and interest. Early payments are mostly interest; the principal-heavy phase comes later — which is exactly why extra early payments save so much. Worked example — a loan of $500,000 at 9% annual interest for 20 years. The monthly rate is 0.09 ÷ 12 = 0.0075 and the term is 240 months. The EMI formula is P × r × (1 + r)^n ÷ ((1 + r)^n − 1). First, (1.0075)^240 ≈ 6.009. Then the numerator: 500,000 × 0.0075 × 6.009 = 22,533.75. The denominator: 6.009 − 1 = 5.009. The EMI is 22,533.75 ÷ 5.009 ≈ $4,499 per month. Total paid across 20 years is 4,499 × 240 = $1,079,760, so the interest alone is $579,760 — more than the amount borrowed. Table — the same $500,000 at 9% over other terms: 10 years gives an EMI of about $6,334 and total interest of $260,020; 15 years gives about $5,071 and $412,852; 20 years gives $4,499 and $579,760; 30 years gives about $4,023 and $948,280. Cutting the term from 30 to 15 years raises the monthly payment by only about $1,048 but saves roughly $535,000 in interest. Before / after — before: choosing the longest term because the monthly payment looks smallest; after: the same loan priced four ways, showing the 30-year loan costs nearly twice the borrowed amount in interest. The reason extra payments are so powerful is the shape of amortisation: in the first year of this 20-year loan, about $3,700 of each $4,499 payment is interest and only about $800 is principal. An extra $500 a month goes entirely to principal, so it cuts the interest charged on every payment after it. A 1% rate rise matters too: at 10% instead of 9%, the same 20-year EMI becomes about $4,825 — $326 more every month, or $78,240 over the loan. Sources: Consumer Financial Protection Bureau, “How to calculate loan payments” (accessed November 2026); Investopedia, “Equated Monthly Installment (EMI)” (accessed November 2026). Content last reviewed: November 2026.
Primary objective: Models fixed-rate loan payment, total interest, payoff time and the effect of an extra monthly payment.
Privacy assurance: The calculation is performed locally in the browser from the values you enter.
How to Use EMI Calculator
- Enter the loan amount, annual interest rate and term.
- Optionally add an extra monthly payment.
- Review the monthly payment, total interest, payoff time and amortization checkpoints.
- Enter the loan amount, the annual interest rate, and the term in years — the three numbers the EMI depends on.
- Read the monthly payment, then scroll to the total interest: that is the real price of the loan.
- Add an extra monthly payment to see how many months and how much interest it removes.
- Compare the same loan at 15, 20, and 30 years before choosing a term — the monthly difference is smaller than the interest difference.
- Stress-test the rate: add 1–2% and check the payment is still affordable if your rate is floating.
Key Use Cases & Applications
- home and personal loan planning
- comparing loan terms
- understanding prepayment effects
- Comparing two home-loan offers with different rates and tenures.
- Seeing how much interest a 5-year vs 7-year car loan really costs.
- Comparing a 15-year and a 30-year loan on the same $500,000 before signing.
- Seeing how much interest an extra $500 a month removes from a home loan.
- Stress-testing a floating-rate loan at 1% above today’s rate.
Frequently Asked Questions
What is EMI?
EMI means Equated Monthly Installment, a regular payment used for many amortizing loans.
Does an extra payment reduce interest?
Under a standard amortization model, paying principal earlier generally reduces future interest. Actual lender rules can differ.
Does the calculator include lender fees?
No. Fees, taxes, insurance and other lender-specific charges may be separate.
How is EMI actually calculated?
EMI = P × r × (1+r)^n / ((1+r)^n − 1), where P is principal, r monthly rate, n months. The tool applies this standard amortization formula.
Does an extra payment really save interest?
Dramatically. An extra payment goes entirely to principal, which shrinks every future interest charge. Even one extra EMI per year can cut years off a long loan.
Fixed vs floating rate — what changes?
With floating rates your EMI or tenure adjusts when rates move. Model the current rate, then stress-test +2% to see if the payment stays affordable.
How much interest does a $500,000 loan at 9% for 20 years cost?
About $579,760. The EMI is roughly $4,499 a month, so total paid is $1,079,760 against $500,000 borrowed.
Does an extra $500 a month really help?
Yes. It goes entirely to principal, and on a 20-year loan it can remove several years and tens of thousands in interest, because every future interest charge is calculated on a smaller balance.
Why is most of my early payment interest?
Interest is charged on the full outstanding balance, which is largest at the start. In year one of the example loan, about $3,700 of each $4,499 payment is interest.
What happens to my EMI if the rate rises from 9% to 10%?
On the $500,000, 20-year loan the EMI rises from about $4,499 to about $4,825 — $326 more per month.
Is a 15-year loan better than a 30-year loan?
It costs far less interest — about $412,852 versus $948,280 on the example — but the monthly payment is about $1,048 higher, so it only works if the budget survives it.
Does the EMI include processing fees or insurance?
No. Fees, taxes, and insurance bundled by the lender sit outside the standard amortisation formula and must be added separately.