Free Online Loan Calculator
The maths is the standard amortisation formula, and the summary shows the interest-to-principal ratio that lenders do not always advertise.
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How to use Loan Calculator
- Enter the amount, the annual rate and the term.
- Read the monthly payment.
- Check total interest and total repaid.
- Compare terms to see how much a longer loan really costs.
Questions about Loan Calculator
Does this include fees or insurance?
No, it is principal and interest only. Add products such as mortgage insurance to the amount to approximate the real payment.
What rate should I type?
The nominal annual rate divided by twelve monthly is applied automatically, so enter the advertised yearly percentage.
About Loan Calculator
Estimate monthly loan payments and interest with our free online Loan Calculator. 100% browser-based, fast, and private—no login or file uploads required.
These calculators and converters turn everyday numbers into answers instantly: percentages, BMI, loans and interest, units, colours and dates, with the formula shown so you can check the working.
This tool runs in your browser. The file is not uploaded. Results update as you type and are rounded for display; for money or legal figures keep the unrounded value and double-check against your own spreadsheet before relying on it.