Business Tools
Loan Repayment Calculator
Monthly payment, total interest and the year-by-year balance for any loan.
Powering up the tool…
What this tool does
About the loan repayment calculator
Standard amortisation with an interest-only mode — the mortgage arithmetic without the sales pitch.
How to use it
- Enter amount, annual rate and term.
- Choose repayment or interest-only.
- Read monthly payment, total interest and the balance by year.
- Stress-test: +1% rate, shorter term — watch the totals move.
Useful for
- Estimate a mortgage or car-loan monthly payment.
- See total interest over the life of a term.
- Compare repayment against interest-only honestly.
Straight answers
Loan Repayment Calculator FAQ
Why is so much of the early payments interest?
Interest accrues on the OUTSTANDING balance, which is biggest at the start — so early payments are interest-heavy and the capital melts slowly, exactly as the year table shows. Overpaying early therefore saves the most.
What does interest-only really cost?
Lower monthlies, but the entire principal still waits at the end — the calculator prints that remainder in bold arithmetic. It is a cash-flow tool, not a discount.