AnyTool
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How do I calculate the EMI on a loan?

Enter the loan amount, the annual interest rate and the tenure into AnyTool EMI Calculator and it instantly shows your Equated Monthly Installment using the reducing-balance formula banks use, along with the total interest, the total payment, and a principal-vs-interest donut. The key feature is the full amortization schedule — every month split into principal, interest and remaining balance, collapsible to a yearly view. You can add a prepayment (extra each month or a one-time lump sum) to see the interest saved and the months cut from your tenure, switch the display between ₹, $, € and £, and everything is calculated in your browser, so nothing is uploaded.

  • EMI = P × r × (1 + r)ⁿ ÷ ((1 + r)ⁿ − 1), reducing-balance method
  • Total interest, total payment and a principal-vs-interest donut
  • Full month-by-month amortization schedule, collapsible to yearly
  • Prepayment shows interest saved and tenure reduced — EMI stays fixed
  • 100% in your browser — no upload, no signup, works offline

What is

Equated Monthly Installment (EMI)

An Equated Monthly Installment is the fixed amount a borrower pays a lender each month to repay a loan over a set term, made up of both interest and principal. Under the reducing-balance method, interest each month is charged on the outstanding balance, so the interest share is largest at the start and the principal share grows over time. The EMI is given by P × r × (1 + r)ⁿ ÷ ((1 + r)ⁿ − 1), where P is the principal, r the monthly rate and n the number of months.

Calculators

Related terms

Amortization scheduleReducing-balance methodLoan prepaymentPrincipal and interest

Frequently Asked Questions

EMI equals P times r times (1 + r) to the power n, divided by ((1 + r) to the power n minus 1), where r is the monthly rate and n the number of months.

The EMI formula is P × r × (1 + r)ⁿ ÷ ((1 + r)ⁿ − 1). P is the loan amount, r is the monthly interest rate (the annual rate divided by 12 and then by 100), and n is the tenure in months. For example, a 10,00,000 loan at 8.5% for 20 years (240 months) works out to an EMI of about 8,678. If the rate is 0%, the EMI is simply the principal divided by the number of months. AnyTool computes it live as you type.

It is a month-by-month table showing how each EMI splits into interest and principal and how the balance falls to zero.

An amortization schedule lists every payment over the life of the loan and breaks each one into the interest charged on the current balance and the principal that the rest of the EMI repays, then shows the remaining balance. Because interest is charged on the outstanding balance, early EMIs are mostly interest and later ones mostly principal. AnyTool shows the full monthly schedule and a collapsible yearly summary so you can see exactly where your money goes.

Prepaying reduces the principal, so future interest is charged on a smaller balance — keeping the EMI fixed and shortening the tenure saves the most.

A prepayment goes straight to the principal, so all the future interest that would have accrued on that amount disappears. The savings are largest early in the tenure, when the balance — and therefore the interest — is highest. AnyTool lets you add an extra amount every month or a one-time lump sum, keeps your EMI fixed, and shows exactly how much interest you avoid and how many months you cut from the loan versus the baseline.

It is a close fixed-rate estimate — real EMIs can differ with fees, insurance and rounding — and nothing is uploaded; every calculation runs in your browser.

The calculator assumes one fixed rate and a clean reducing-balance schedule. A lender’s actual EMI can differ slightly because of day-count and rounding conventions, processing fees, GST, bundled loan-protection insurance, and rate changes on floating-rate loans. Treat the result as a close planning estimate and confirm the exact figures with your lender. AnyTool EMI Calculator runs entirely in your browser, so your loan details are never sent to a server and the page works offline.

Detailed Explanation

Methodology

How the EMI Calculator Works

AnyTool EMI Calculator computes the Equated Monthly Installment in the browser using the standard reducing-balance formula EMI = P × r × (1 + r)ⁿ ÷ ((1 + r)ⁿ − 1), where P is the loan amount, r is the monthly interest rate (annual rate ÷ 12 ÷ 100) and n is the tenure in months. It then builds a full amortization schedule by charging interest on the outstanding balance each month, repaying the rest of the EMI as principal, and carrying the new balance forward until it reaches zero. The 0% case degrades cleanly to P ÷ n. All arithmetic is pure client-side JavaScript shared through a reusable, unit-tested loan engine that also powers other finance tools.

  • EMI = P × r × (1 + r)ⁿ ÷ ((1 + r)ⁿ − 1); r = annual rate ÷ 12 ÷ 100
  • Reducing-balance: interest is charged on the outstanding balance each month
  • Principal portion of each EMI = EMI − interest for that month
  • Handles the 0% case as a flat EMI of principal ÷ months
  • All math is client-side JavaScript — no server round-trip
Use Cases

Amortization Schedule and Prepayment

The calculator’s key feature is a complete amortization schedule: every month is split into the interest charged on the current balance, the principal repaid, and the remaining balance, with a collapsible yearly roll-up for long tenures. Because interest follows the balance, early payments are mostly interest and later ones mostly principal. Adding a prepayment — an extra amount every month and/or a one-time lump sum in a chosen month — keeps the EMI fixed and applies the surplus straight to principal, so the loan clears sooner. The tool then reports the interest saved and the months cut versus the no-prepayment baseline.

  • Month-by-month principal, interest and balance, collapsible to yearly
  • Interest share is highest early and falls as the balance reduces
  • Prepayment keeps the EMI fixed and shortens the tenure
  • Supports an extra-monthly amount and one-time lump sums by month
  • Reports interest saved and tenure reduced versus the baseline
Limitations

A Fixed-Rate Estimate, Not the Final Bank Figure

The calculator assumes a single fixed interest rate for the whole tenure and a clean reducing-balance schedule, so it is a close planning estimate rather than the exact figure a lender will charge. Real EMIs can differ by a small amount because of day-count and rounding conventions, processing or documentation fees, GST, loan-protection insurance bundled into the EMI, and — on floating-rate loans — rate changes over time. Prepayment rules, lock-ins and charges also vary by lender. The page states these limits plainly and recommends confirming the exact EMI with the lender.

  • Assumes one fixed rate and a clean reducing-balance schedule
  • Excludes processing fees, GST and bundled insurance
  • Floating-rate loans change as the benchmark rate moves
  • Lender prepayment rules, lock-ins and charges vary
  • Presented as a planning estimate, not the final bank figure
Privacy & Security

Privacy and Offline Use

Because all computation runs in the browser, your loan amount, interest rate and tenure are never sent to a server, there is no account or tracking, and the page works offline after first load. The currency selector (₹ / $ / € / £) only changes how numbers are displayed; the engine itself is currency-agnostic. The calculator is built on a shared, unit-tested loan engine so its behaviour is consistent and verifiable.

EMI calculation: in-browser (AnyTool) vs typical online EMI calculators
CapabilityAnyToolTypical online calculators
ProcessingRuns in your browserOften server-side
Amortization scheduleFull monthly + collapsible yearlyOften summary or paywalled
PrepaymentExtra monthly + lump sums, interest savedFrequently absent
Breakdown visualPrincipal-vs-interest donut, liveOften text only
Currency₹ / $ / € / £ display toggleUsually fixed
Honest limitsStates fixed-rate / fees caveats plainlyOften omitted
Works offlineYes (PWA)No
Cost / signupFree, no signupOften ad-heavy or gated

AnyTool computes the EMI, schedule and prepayment savings locally and uploads nothing.