Loan details
Free amortization calculator
Make every loan number easier to trust.
Estimate monthly payments, compare extra-payment savings, view payoff timing, and export a full amortization schedule for mortgage, auto, and education scenarios.
- Mortgage, auto, education
- No signup required
- CSV schedule export
- Private browser storage
Loan planning tools
One calculator for the most common borrowing decisions
Use the same amortization engine with labels that fit the loan you are comparing.
Mortgage Estimate
Plan a home loan with down payment, property tax, insurance, and payoff timing in one view.
Auto Loan Estimate
Compare vehicle price, down payment, interest rate, term, and optional extra monthly payments.
Education Loan Estimate
Model tuition, scholarships or grants, and long-term repayment impact without creating an account.
Simple workflow
From rough number to useful schedule in seconds
The calculator is designed for quick exploration. Adjust your numbers, compare the savings from extra payments, and export the schedule when you are ready to review it.
Enter loan details
Add price, down payment, interest rate, and term.
Compare the outcome
See payment, interest, payoff date, and savings.
Export the schedule
Download a CSV for spreadsheet review.
Payment breakdown
Compare the amount borrowed with the estimated interest cost.
Amortization schedule
| Month | Payment | Principal | Interest | Balance |
|---|
Loan guide
Understanding loan payments and amortization
A loan payment is usually made from two moving parts: principal and interest. Principal is the amount borrowed after any down payment, scholarship, grant, trade-in, or other upfront reduction. Interest is the cost of borrowing that money over time. Amortization spreads those payments across a fixed term so each scheduled payment moves the balance closer to zero.
Use the calculator as a planning screen before you compare lender quotes. Start with the loan amount, rate, and term, then adjust down payment or extra monthly payments to see how the payoff date changes. The monthly payment estimate is most useful when you compare several scenarios side by side, because a small rate change or a modest extra payment can affect total interest over a long term.
For example, a 30-year mortgage can have a comfortable monthly payment but a high lifetime interest cost. A shorter term may raise the payment while lowering total interest. Auto loans usually have shorter terms, so the monthly payment reacts quickly to vehicle price, down payment, and rate. Education loans can have repayment rules that vary by lender or program, so this calculator should be treated as a plain amortization estimate rather than a substitute for official repayment disclosures.
When reviewing the amortization schedule, look beyond the first payment. Early payments usually contain more interest, while later payments pay down more principal. Extra payments are applied to principal in this calculator, which is why they can reduce future interest and shorten the schedule. If your lender handles extra payments differently, use their official numbers before making a decision.
How extra payments help
Extra monthly payments reduce principal ahead of schedule. When the balance falls faster, future interest charges are calculated on a smaller amount, which can shorten the term and lower total interest.
APR versus interest rate
The interest rate is used for the amortization math. APR may include fees or other borrowing costs. This calculator uses the interest rate input and does not attempt to estimate APR from fees.
Taxes and insurance
Property tax and insurance can help estimate a broader monthly housing cost. They are not part of principal and interest and do not reduce the loan balance.
Important disclaimer
Estimates are for educational purposes only. Real loans may include fees, escrow adjustments, variable rates, deferment periods, or lender-specific rounding methods.
Loan calculator FAQ
Does this calculator include every lender fee?
No. It focuses on principal, interest, optional tax and insurance estimates, and extra monthly payments. Origination fees, closing costs, escrow changes, and lender-specific rounding are not included.
Why does the interest amount change each month?
Interest is calculated from the remaining balance. As the balance falls, less of each payment goes to interest and more goes to principal.
Can I use the export for spreadsheet review?
Yes. The page shows the first 12 rows for readability, while the CSV export includes the full amortization schedule generated from your inputs.
Is this financial advice?
No. Get Loan Calc provides educational estimates only. Confirm loan terms with a lender, broker, or licensed professional before making financial decisions.