🏦 Loan & Mortgage Calculator
Get your monthly payment, total interest cost, and year-by-year amortization schedule in seconds — no sign-up, no internet required, completely free. Enter your loan amount, annual interest rate, and term, and the calculator shows exactly how much goes to principal vs. interest each period.
Inputs
Monthly Payment
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Total Amount Paid
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Total Interest
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About
Toolio's Loan & Mortgage Calculator uses the standard fixed-rate amortization formula (M = P·r / (1 − (1+r)^−n)) to compute payments for any loan up to 50 years. You can view the schedule year-by-year or month-by-month and export it as a CSV file. Because all calculations happen locally in your browser, your financial figures are never transmitted to any server — your data stays private.
How to use
- Enter your loan amount (e.g. $300,000 for a mortgage or $20,000 for a car loan).
- Set the annual interest rate (%) — check your loan offer or current mortgage rates.
- Choose the loan term in years (1–50), then set your preferred currency symbol.
- Read the results: monthly payment, total amount paid, and total interest charged are shown instantly.
- Explore the amortization schedule — toggle between yearly and monthly views, or download the full schedule as a CSV file.
FAQ
- Is this loan calculator free to use?
- Yes, completely free. No account, no subscription, no hidden fees — just open the page and calculate.
- Does it work offline without an internet connection?
- Yes. Toolio runs entirely in your browser with no server calls. Once the page has loaded, you can disconnect from the internet and it still works perfectly.
- Is my financial data private? Does it get sent to a server?
- No data is ever sent anywhere. All calculations happen locally in your browser using JavaScript, and your inputs are only saved to your own browser's localStorage. Nothing leaves your device.
- What loan types can I calculate — mortgage, auto loan, personal loan?
- Yes. The calculator works for any fixed-rate, fully-amortizing loan: mortgage, auto loan, personal loan, student loan, and more. Just enter the principal, rate, and term.
- Can I export the amortization schedule?
- Yes. Use the 'Copy CSV' button to copy the schedule to your clipboard, or 'Download CSV' to save it as a file you can open in Excel or Google Sheets.