Loan and mortgage calculator
Loan Calculator: your monthly payment and payoff date
Enter an amount, rate and term. See your monthly payment, total interest, payoff date and what extra payments save you, then download the full amortization table as CSV.
Loan Calculator
How Loan Calculator works
Standard amortization math, shown line by line.
Enter your terms
Loan amount, annual rate, term in years or months, and an optional extra monthly payment.
Read the summary
Monthly payment, total interest, payoff date and the interest and time extra payments save.
Inspect every payment
See the balance chart and the full schedule, then download it as CSV for your own spreadsheet.
Questions
How is the monthly payment calculated?
Payment equals amount times monthly rate, divided by one minus the monthly rate raised to the negative number of months. Interest each month is the remaining balance times the annual rate divided by 12.
How do extra payments work?
The extra amount is added to every monthly payment and applied entirely to principal, so the balance falls faster and less interest accrues. The last payment is reduced to whatever is left.
Does it include taxes, insurance or fees?
No. Figures cover principal and interest only. Property tax, insurance, PMI and lender fees are not included.
Can I use it for a mortgage, car loan or personal loan?
Yes. Any fixed-rate loan with equal monthly payments works. Variable rates and interest-only periods are not modeled.
Is my data stored?
No. Everything is calculated in your browser, and the CSV is created on your device.
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