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Loan EMI Calculator

Monthly loan EMI and amortisation

By UtilityKit Team · Reviewed for accuracy by UtilityKit Editors · Updated May 2026

About Loan EMI Calculator

An Equated Monthly Instalment (EMI) is the fixed amount you pay every month for the life of a loan, covering both principal repayment and interest. This calculator uses the standard reducing-balance EMI formula — EMI = [P × r × (1+r)^n] / [(1+r)^n − 1] — where P is the loan principal, r is the monthly interest rate, and n is the total number of monthly payments. Enter any home loan, auto loan, personal loan, or education loan to see your monthly payment and the full amortisation schedule showing how each rupee, dollar, or pound is split between principal and interest across every month of the loan. The tool also displays total interest payable over the loan's life, which is often surprisingly large and a strong argument for choosing a shorter tenure when cash flow allows.

Why use Loan EMI Calculator

Bank-grade EMI Formula

Uses the standard reducing-balance formula EMI = [P × r × (1+r)^n] / [(1+r)^n − 1] — the same calculation every commercial bank uses. Results match your loan sanction letter to the rupee or cent.

Full Amortisation Schedule

See every single month's principal repayment, interest charge, and outstanding balance in a scrollable table. This reveals how front-loaded interest is in early years, which motivates prepayment decisions.

Total Interest Cost Visibility

The headline EMI hides the real cost of borrowing. This tool immediately shows the lifetime interest — often 60–100% of the original principal on a 20-year home loan — so you can make an informed decision before signing.

Tenure Comparison

Compare two or three tenures side-by-side to see how shortening by five years changes both the monthly EMI and the total interest. This quantifies the trade-off between higher monthly outgo and long-term savings.

Prepayment What-if

Enter a one-time prepayment amount to instantly see how many months it removes from the schedule and how much interest it saves. Even a single extra EMI early in the loan creates disproportionate savings.

Currency-agnostic

Works for any currency — ₹, $, £, or € — because the mathematics is purely numerical. No currency selection is required; just enter the number and the calculator handles the rest.

How to use Loan EMI Calculator

Enter the loan principal — the amount you are borrowing, not including any fees
Enter the annual interest rate in percent as quoted by the lender, for example 9.5 for 9.5% per annum
Set the loan tenure in years or toggle to months for short-term personal loans
Click Calculate to see the monthly EMI, total amount payable, and total interest cost
Scroll down to inspect the full month-by-month amortisation schedule
Optionally enter a second tenure to compare EMI and total interest side-by-side

When to use Loan EMI Calculator

When comparing home loan offers from two or three banks at different rates or tenures before choosing a lender
When you want to see the full lifetime interest cost of a loan before signing the sanction letter
When planning a personal or auto loan and need to check whether the monthly EMI fits your budget
When evaluating whether to make a partial prepayment and want to quantify how many months and how much interest it saves
When a floating interest rate changes and you need to recalculate the new EMI or revised tenure
When an education loan is being structured and you need to compare grace-period options against immediate repayment

Examples

Personal loan

Input: Principal: ₹500,000, Rate: 12% annual, Tenure: 5 years

Output: EMI: ₹11,122/month — Total interest: ₹167,332 — Total payable: ₹667,332

Home loan

Input: Principal: $300,000, Rate: 6.5%, Tenure: 30 years

Output: EMI: $1,896/month — Total interest: $382,633 — Total payable: $682,633

Auto loan

Input: Principal: $25,000, Rate: 7.9%, Tenure: 5 years

Output: EMI: $506/month — Total interest: $5,344 — Total payable: $30,344

Tips

A shorter tenure means a higher EMI but substantially lower lifetime interest — run both options and compare the total payable before deciding
Prepay during the first third of the loan term, when the interest component of each EMI is highest, to get the greatest savings per rupee prepaid
Compare the Annual Percentage Rate (APR), which includes processing fees, not just the headline interest rate when choosing between lenders
Try rounding up your EMI by 5–10% each year as informal prepayment — even small increases compress the tenure noticeably
If you have a floating-rate loan, recalculate the schedule after every rate revision to understand the updated remaining tenure and total cost

Frequently Asked Questions

What is the EMI formula?▾

EMI = [P × r × (1+r)^n] / [(1+r)^n − 1], where P is the loan principal, r is the monthly interest rate (annual rate divided by 12 and divided by 100), and n is the total number of monthly instalments (tenure in years multiplied by 12). This is the standard reducing-balance formula used by commercial banks.

How does loan tenure affect total interest paid?▾

A longer tenure reduces the monthly EMI but dramatically increases total interest because interest accrues for more months. A 20-year home loan typically pays back roughly double the principal when interest is totalled; a 30-year term can pay back two-and-a-half times. Choosing a shorter tenure always saves money if the higher EMI is affordable.

What is amortisation?▾

Amortisation is the process of paying off a debt through scheduled periodic payments. In a loan context, each EMI payment is split between interest (calculated on the outstanding balance) and principal reduction. As the outstanding balance falls, the interest component of each EMI decreases and the principal component increases.

Should I make a prepayment or invest the surplus?▾

If your loan interest rate exceeds your expected post-tax investment return — which is common for personal and auto loans — prepayment is the better use of surplus cash. For home loans at 7–8%, if you can earn 9–10% post-tax in equity investments, investing may win in the long run, but the guaranteed return of prepayment has no risk.

Is the rate I enter annual or monthly?▾

Enter the annual rate as quoted by your lender. The calculator divides it by 12 internally to get the monthly rate used in the formula. Do not enter a monthly rate unless you explicitly set the tenure unit to months as well.

Why do early EMIs go mostly to interest?▾

Interest in each period is calculated on the outstanding principal, which is highest at the start. As you pay down principal over time, the balance shrinks and so does the interest portion. This is why prepaying in the first third of a loan tenure saves far more than prepaying in the final third.

Does this include processing fees or insurance?▾

The calculator shows the pure EMI based on principal, rate, and tenure. Processing fees, prepayment charges, loan insurance premiums, and other costs are not included. To factor them in, add the one-time fee to the principal before calculating, or subtract the annual insurance cost from your budget separately.

What is the difference between flat and reducing-balance interest?▾

Flat-rate interest calculates interest on the full original principal throughout the tenure, making the effective rate much higher than the quoted rate. Reducing-balance interest (used in this calculator) calculates interest only on the outstanding principal each month, which is the method used by all mainstream banks for home, auto, and personal loans.

Explore the category

Glossary

EMI (Equated Monthly Instalment): A fixed monthly payment amount that covers both the interest due and a portion of the principal. EMIs are structured so the loan is fully repaid by the end of the tenure with equal payments each month.
Principal: The original loan amount borrowed, excluding interest and fees. As monthly EMIs are paid, the outstanding principal decreases. Interest each month is calculated only on the remaining outstanding principal, not the original amount.
Tenure: The total duration of the loan, usually expressed in years or months. A longer tenure lowers the monthly EMI but increases the total interest paid. A shorter tenure does the opposite.
Interest Rate: The cost of borrowing expressed as a percentage per year (per annum). In EMI calculations, the annual rate is converted to a monthly rate by dividing by 12. Reducing-balance rates are always compared on this basis.
Amortisation Schedule: A complete table showing every monthly payment broken into its principal and interest components, along with the outstanding loan balance after each payment. It shows how the loan balance gradually decreases to zero by the final EMI.
Outstanding Balance: The remaining principal owed on a loan at any point in time. Interest for each period is calculated only on the outstanding balance, which is why the interest share of each EMI falls and the principal share rises over the loan's life.