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Free Loan Calculator

Calculate monthly loan payments, total interest, and amortization for personal loans, student loans, and more. Free online loan payment calculator with instant results.

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Monthly Payment

$500.95

Total Interest

$5,057

Total Paid

$30,057

Formula

M = P × [r(1+r)^n] / [(1+r)^n – 1] — where P = principal, r = monthly interest rate, n = total payments

How Loan Payments Are Calculated

Every fixed-rate loan uses the same fundamental amortization formula to determine your monthly payment. The calculation considers three factors: the amount you're borrowing (principal), the annual interest rate, and how long you have to repay (loan term). Our loan calculator applies this formula instantly, showing you exactly what you'll pay each month and over the life of the loan.

Understanding Your Loan Costs

Monthly Payment is the fixed amount due each month, covering both principal and interest. In the early months, the majority of your payment goes toward interest. As the loan matures, more of each payment reduces the principal balance — this is called amortization.

Total Interest reveals the true cost of borrowing. On a $25,000 loan at 7.5% for 5 years, you'll pay about $5,050 in interest — meaning the loan actually costs you over $30,000. Shortening the term or securing a lower rate significantly reduces this amount.

Types of Loans This Calculator Works For

  • Personal loans — unsecured loans for debt consolidation, home improvement, or major purchases
  • Student loans — federal or private loans for education expenses
  • Auto loans — financing for vehicle purchases (also try our dedicated Car Loan Calculator)
  • Home equity loans — fixed-rate loans using your home as collateral
  • Business loans — financing for small business needs

Tips for Getting the Best Loan Rate

  • Check your credit score — know where you stand before applying
  • Compare multiple lenders — banks, credit unions, and online lenders offer different rates
  • Consider the total cost — a lower monthly payment with a longer term often costs more overall
  • Watch for fees — origination fees, late fees, and prepayment penalties add to total cost
  • Pre-qualify first — many lenders offer soft credit checks that don't affect your score

Frequently Asked Questions

How is a loan payment calculated?

Loan payments are calculated using the amortization formula, which factors in the principal amount, interest rate, and loan term. Each monthly payment covers both principal and interest. Early in the loan, most of your payment goes toward interest. Over time, more goes toward paying down the principal balance.

What's the difference between APR and interest rate?

The interest rate is the base cost of borrowing money, while APR (Annual Percentage Rate) includes the interest rate plus fees like origination fees, closing costs, and other charges. APR gives you a more complete picture of the true cost of a loan. Always compare APR when shopping for loans.

How can I lower my monthly loan payment?

You can lower your monthly payment by choosing a longer loan term (though you'll pay more interest overall), negotiating a lower interest rate, making a larger down payment to reduce the principal, or refinancing an existing loan when rates drop. Improving your credit score can also help you qualify for better rates.

Should I pay off my loan early?

Paying off a loan early saves you money on interest. However, check if your loan has a prepayment penalty first. If your loan rate is low (under 4-5%), you might earn more by investing extra money instead. Consider your overall financial picture — paying off high-interest debt should usually come before extra payments on low-interest loans.

What credit score do I need for a personal loan?

Most lenders require a minimum credit score of 580-620 for a personal loan, but the best rates go to borrowers with scores above 720. A score of 670+ is considered 'good' and will qualify you for competitive rates. Below 580, you may need to explore secured loans or credit-builder products.