Free Loan Calculator - Monthly Payment, Interest & Amortization
Free online loan calculator for monthly payments, total interest, amortization schedules, extra payments, early payoff, and interest-only loan estimates.
Select your local currency for formatting calculations
Model a standard fixed-rate installment loan such as an auto loan, personal loan, student loan, vehicle loan, boat loan, RV loan, home-equity loan, or business loan. For mortgage-specific taxes and insurance, use the dedicated Mortgage Calculator.
Principal & interest
Estimated interest paid
Principal + interest
No extra-payment savings
Amortization Schedule
Month-by-month principal, interest, and remaining balance.
| Month | Payment | Principal | Interest | Balance |
|---|
Loan Cost Summary
Useful for comparing payment size, term length, and interest cost.
Step-by-Step Payment Solving
Calculate Monthly Loan Payments, Interest & Amortization
Use this simple loan calculator to estimate your monthly payment, total interest, total repayment, and amortization schedule for fixed-rate installment loans. It can help with auto and car loans, personal loans, student loans, vehicle financing, boat and RV loans, home-equity scenarios, and many business or commercial loan estimates.
Compare Loan Costs
Change the interest rate or term to see how the monthly payment and lifetime interest change. A longer term can lower the scheduled payment while increasing the number of interest-bearing months.
Model Extra Payments
Add a one-time or recurring extra principal payment to estimate an earlier payoff date and potential interest savings. Actual lender rules for prepayment should always be checked in your loan agreement.
Interest-Only Scenarios
Switch to Interest Only to estimate periodic interest payments. Unless principal is separately repaid, an interest-only schedule can leave a balloon balance due at the end of the modeled term.
Download Your Schedule
Review the month-by-month principal, interest, and balance, then export the amortization schedule to CSV for Excel or Google Sheets.
This is a calculation tool, not a lender quote, approval decision, APR disclosure, or financial recommendation. Taxes, insurance, lender fees, origination charges, and program-specific rules are not automatically included.