Loan Calculator

Year	Principal paid	Interest paid	Balance
1	$4,373.62	$1,496.23	$20,626.38
2	$4,666.53	$1,203.32	$15,959.86
3	$4,979.05	$890.79	$10,980.81
4	$5,312.51	$557.34	$5,668.30
5	$5,668.30	$201.55	$0.00

Estimate loan payments and total interest before you borrow

Taking on a loan is a major financial commitment, and understanding the real cost before you sign is essential. Our free loan calculator turns three simple inputs — the amount you borrow, the annual interest rate, and the term in years — into a clear picture of what repayment actually involves. It calculates your fixed monthly payment using the standard amortization formula, then shows the total interest you will pay and the total amount repaid over the life of the loan.

Seeing those figures side by side is eye-opening. A small change in interest rate or term can add up to a large difference in total cost, and this tool lets you experiment freely to find a balance you are comfortable with. Because the results update as you adjust the inputs, you can compare a shorter term with higher monthly payments against a longer term with more total interest, helping you make a decision that fits both your monthly budget and your long-term plans.

The calculator also provides an amortization summary that illustrates how each payment splits between interest and principal, and how the balance falls over time. Early payments are weighted heavily towards interest, which is why extra principal payments early in a loan are so powerful. Whether you are considering a car loan, a personal loan, or the principal-and-interest portion of a mortgage, this tool gives you the clarity to borrow with confidence.

Why use Loan Calculator?

Accurate monthly payment

Uses the industry-standard amortization formula so your estimated payment closely matches what a lender would quote.

See the true cost

Total interest and total repayment are displayed clearly, revealing the real price of borrowing beyond the sticker amount.

Compare scenarios instantly

Adjust the rate or term and watch every figure update, so you can weigh shorter and longer terms in seconds.

Amortization summary

Understand how payments shift from interest to principal and how your balance shrinks over the loan's life.

How to use Loan Calculator

1
Enter the loan amount
Type the principal you intend to borrow into the amount field.
2
Set the interest rate
Add the annual interest rate as a percentage, exactly as your lender quotes it.
3
Choose the term
Enter the loan length in years. The calculator converts this into monthly payments automatically.
4
Review the results
Read your monthly payment, total interest, total cost, and the amortization summary all at once.

Common use cases

Car loan planning

Estimate monthly repayments on a vehicle purchase and check the total interest before agreeing finance terms.

Personal loan comparison

Compare offers with different rates and terms to find the most affordable option for your budget.

Mortgage principal and interest

Understand the core repayment on a home loan before adding taxes, insurance, and fees separately.

Debt payoff strategy

Test how a shorter term or a lower rate would cut the total interest you pay over the years.

Features at a glance

Fixed monthly payment via standard amortization
Total interest and total repayment shown
Adjustable loan amount, rate, and term
Amortization summary of principal versus interest
Instant recalculation as you change inputs
Works for car, personal, and home loans
Clean results layout on any device
Client-side only — your figures stay private

Frequently asked questions

How is my monthly loan payment calculated?

The calculator uses the standard amortization formula: the monthly payment equals the principal times the monthly interest rate, divided by one minus (1 plus the monthly rate) raised to the negative number of payments. This spreads the loan evenly across the term.

What is loan amortization?

Amortization is the process of paying off a loan through equal periodic payments. Early payments are mostly interest, while later payments increasingly reduce the principal. Our summary shows how the balance falls over time and how much interest you pay overall.

Does the calculator include taxes and insurance?

No. This tool focuses on principal and interest only, which gives a clear estimate of the loan itself. For mortgages you should separately budget for property taxes, homeowners insurance, and any lender fees.

How can I reduce the total interest I pay?

Choosing a shorter term, securing a lower interest rate, or making extra principal payments all reduce total interest. Try adjusting the term and rate fields to compare scenarios and see the impact on total cost instantly.

Is this loan calculator free to use?

Yes, it is entirely free with no signup required. All calculations run in your browser, so your loan figures stay private and are never sent to any server.

Your privacy matters

Loan Calculator runs entirely in your web browser. Your files, text, and data are never uploaded to any server, never stored, and never seen by us or any third party. This client-side architecture means you can safely process confidential business documents, personal records, and proprietary data without privacy concerns.