Auto Loan Calculator

Free Online Loan Calculator (EMI Calculator) with Amortization Table

This loan calculator estimates your monthly loan payment (also known as EMI, or equated monthly installment), total interest paid, and total repayment amount for any fixed-rate installment loan — including personal loans, auto loans, student loans, and business loans. Simply enter the loan amount, annual interest rate, and loan term in months to get an instant, accurate breakdown, complete with a full year-by-year and month-by-month amortization schedule.

Whether you're comparing offers from different lenders, checking if a loan fits your monthly budget, or just want to understand how much a loan will really cost once interest is added, this free calculator gives you the exact numbers instantly — along with interactive balance-over-time and principal-vs-interest charts so you can see how your debt shrinks with each payment. You can also model extra monthly payments to see exactly how much interest you can save and how many months you can shave off your repayment term.

What Is EMI (Equated Monthly Installment)?

EMI stands for Equated Monthly Installment — a fixed payment amount that a borrower pays a lender on a set date each month until the loan is fully repaid. Every EMI payment is made up of two parts: a portion that goes toward interest, and a portion that goes toward reducing the principal (the original loan amount). Even though the total EMI stays the same every month, the mix between interest and principal changes over the life of the loan.

Loan Payment (EMI) Formula

Monthly loan payments are calculated using the standard amortizing loan formula:

EMI = P × [r(1+r)^n] / [(1+r)^n − 1]

Where:

• P = loan amount (principal)
• r = monthly interest rate (annual interest rate ÷ 12 ÷ 100)
• n = total number of monthly payments (loan term in months)

How to Calculate a Loan Payment — Step by Step

Here's how the calculator arrives at your monthly payment:

• Step 1: Start with the loan amount (P) — the total amount you're borrowing.
• Step 2: Convert the annual interest rate to a monthly rate by dividing by 12, then by 100 (r).
• Step 3: Use the loan term in months directly as (n).
• Step 4: Plug P, r, and n into the EMI formula to calculate the fixed monthly payment.
• Step 5: Multiply the monthly payment by the number of months to get total repayment, then subtract the loan amount to find total interest paid.

Worked Example — Calculating a Loan Payment

Let's calculate the EMI for a $20,000 loan at 9.5% annual interest over 48 months.

• Step 1: Loan amount (P) = $20,000.
• Step 2: Monthly rate (r) = 9.5% ÷ 12 ÷ 100 = 0.007917.
• Step 3: Number of payments (n) = 48.
• Step 4: Applying the formula gives a monthly payment of approximately $500.
• Step 5: Total repayment ≈ $24,000, meaning total interest paid ≈ $4,000 over the 4-year term.

Understanding the Amortization Charts and Table

The balance-over-time chart tracks your remaining loan balance year by year, from the original loan amount down to zero at the end of the term, while the cumulative-interest line shows how much interest has accrued so far. Because interest is calculated on the outstanding balance, the balance drops slowly at first — since a bigger share of each early payment goes toward interest — and then drops more quickly toward the end of the loan, as more of each fixed payment goes toward principal. The principal-vs-interest bar chart breaks this down year by year, and the full amortization table below lets you switch between a yearly summary and a detailed month-by-month schedule, search for a specific month or year, and export the entire schedule to CSV for your own records or spreadsheet.

How Extra Payments Shorten Your Loan

Paying more than the required monthly amount reduces your principal faster than scheduled, which shortens the effective loan term and lowers the total interest you end up paying, since interest is always calculated on the remaining balance. Enter an extra monthly payment amount using the Advanced options above to instantly see your updated payoff date, total interest saved, and revised amortization schedule — the same principle that makes extra payments so powerful on a mortgage applies equally to personal loans, auto loans, and any other fixed-rate installment loan.

How Loan Term and Interest Rate Affect Your Payment

A shorter loan term means higher monthly payments but significantly less total interest paid, since you're paying off the principal faster and giving interest less time to accumulate. A longer loan term lowers your monthly payment, which can make it easier to fit into a tight budget, but increases total interest paid over the life of the loan. Interest rate has a similar trade-off — a lower rate reduces both your monthly payment and total interest, which is why it pays to shop around and compare rates from multiple lenders before borrowing.

Types of Loans This Calculator Works For

Because it uses the standard fixed-rate amortization formula, this calculator works for most common installment loan types: personal loans, auto and car loans, student loans, debt consolidation loans, and small business loans. It's designed for fixed-rate loans, where the interest rate stays the same for the entire term — for loans with a variable or adjustable rate, actual payments may change over time and won't exactly match this estimate.

Secured vs. Unsecured Loans

Loans generally fall into two categories: secured and unsecured. A secured loan, like an auto loan, is backed by collateral — the vehicle itself — which the lender can repossess if payments aren't made, and this lower risk usually means a lower interest rate. An unsecured loan, like most personal loans, isn't backed by any specific asset, so lenders rely more heavily on credit score and income to set the interest rate, which tends to be higher to offset the added risk. Regardless of which type you're comparing, this calculator's EMI formula applies the same way, since it only depends on the loan amount, rate, and term.

How Your Credit Score Affects Your Loan Rate

Lenders use your credit score, income, and existing debt to decide what interest rate to offer, and even a modest difference in rate can change your total interest by a noticeable amount over the loan term. Borrowers with higher credit scores typically qualify for lower rates, while those with limited or poor credit history are often offered higher rates to offset the lender's risk. If you're comparing offers from multiple lenders, plug each quoted rate into this calculator with the same loan amount and term to see the real dollar difference in monthly payment and total interest side by side.

Common Mistakes When Estimating a Loan

A common mistake is comparing loan offers by monthly payment alone, without checking the total interest paid — a longer term can lower the monthly payment but end up costing more overall once total interest is added up. Another is entering the interest rate as a monthly figure instead of an annual one (or vice versa), which throws off the entire calculation, since lenders almost always quote rates annually. It's also worth double-checking whether a quoted rate includes fees like an origination charge — some lenders advertise a low headline rate but add fees that raise the effective cost of borrowing (often reflected in a separate figure called the APR). Running the exact rate and term from a real loan offer through this calculator is the most reliable way to see the true monthly payment and total cost before signing anything.

Why Use This Loan Calculator?

This tool gives you an instant, accurate monthly payment estimate along with total interest, total repayment amount, interactive balance and principal-vs-interest charts, and a full exportable amortization table — everything you need to compare loan offers, test different terms and interest rates, model extra payments, or check whether a loan fits comfortably into your monthly budget. Whether you're financing a car, consolidating debt, or taking out a personal loan, this calculator gives you a clear, dependable answer in seconds.