Loan Repayment Calculator
Calculate monthly payment, total repayment, and interest for any loan. Works for mortgages, car loans, and more.
Enter the loan amount, annual rate, and term to calculate your monthly payment.
* Calculated using a fixed equal-instalment (amortising) method. Actual repayments may differ depending on your lender and repayment plan.
How to Use
Enter the loan amount
Type the total amount you plan to borrow. For example, $300,000 for a mortgage.
Enter the annual interest rate
Enter the annual interest rate (%) quoted by your lender. Use the current fixed or variable rate that applies to your loan.
Set the loan term
Enter the repayment period in years and months. For example, a 30-year mortgage would be 30 years, 0 months.
Review your results
Your monthly payment, total repayment, and total interest are displayed instantly. A bar chart shows the ratio of principal to interest.
FAQ
The calculator uses the standard equal-instalment (amortising) method, where you pay the same amount each month and each payment gradually shifts from mostly interest to mostly principal.
The calculator assumes a fixed interest rate for the entire term. If your loan has a variable rate, the actual monthly payment will change when the rate changes. Use the result as a reference estimate only.
Not in the current version. The calculator assumes regular monthly payments with no additional lump-sum or balloon payments. If you plan an early repayment, recalculate with the remaining balance and term.
No. All calculations run entirely in your browser using JavaScript. The loan amount and other details you enter are never sent to or stored on any server.