Use this free mortgage calculator to estimate your monthly payments, total interest, and full amortisation schedule.
Whether you're comparing a home loan, car loan, or personal loan, this tool gives you a complete breakdown of how your payments evolve over time.
Mortgage & Amortisation Calculator
Full loan lifecycle: payment schedule + interest/principal split + balance curve + CSV export
| Period | Payment | Principal | Interest | Remaining Balance |
|---|---|---|---|---|
| Enter values and click calculate | ||||
This mortgage calculator helps you estimate your monthly loan payments and understand how your debt is repaid over time. Each payment is split between interest (the cost of borrowing) and principal (the amount you repay). In the early stages of a loan, a larger portion goes toward interest, while later payments gradually reduce the principal balance faster.
An amortisation schedule is a complete breakdown of every payment you make over the life of a loan. It shows exactly how much goes toward interest and principal each month, as well as the remaining balance after every payment. This is especially useful for mortgages, car loans, and personal loans where fixed monthly payments are applied over time.
Using a loan calculator allows you to compare different scenarios before committing to a loan. By adjusting the loan amount, interest rate, or term length, you can see how your monthly payment changes and how much total interest you will pay. This helps you make smarter financial decisions and avoid overpaying on interest.
For example, a £250,000 mortgage with a 5% annual interest rate over 30 years results in a fixed monthly payment. Over time, the interest portion decreases while the principal repayment increases, eventually paying off the loan completely. The charts above visually demonstrate this transition and help you understand the full lifecycle of your loan.
A loan calculator typically shows your monthly payment and total interest, while an amortisation calculator provides a full payment schedule with detailed breakdowns for each period. This tool combines both, giving you a complete view of your loan.
Yes, this calculator works for any fixed-rate loan, including mortgages, car loans, and personal loans. Simply enter the loan amount, interest rate, and term to generate your results.
Yes, the calculation uses standard monthly compounding, which is how most loans and mortgages are structured.
This calculator provides highly accurate estimates based on standard financial formulas. However, actual loan terms may vary depending on lender fees, insurance, or additional costs.
