Fill in the loan details and select the amortization method. The tool will compute, year by year: opening balance, interest paid, principal repaid, yearly payment, and remaining balance.
About this loan amortization calculator
This free loan amortization calculator helps you build a clear yearly amortization schedule from three simple inputs: loan amount, annual interest rate and duration. In a few seconds, you can compare two common repayment methods: linear amortization (constant principal repayments) and annuity amortization (constant yearly payments).
The generated table shows, year by year, the opening balance, interest paid, principal repaid, total payment, and the remaining balance. This is useful to estimate the total cost of a loan, understand how interest evolves over time, and compare scenarios before contacting a lender. All calculations run locally in your browser: no account, no upload, no tracking of your inputs.
Linear vs annuity amortization: what’s the difference?
With linear amortization, you repay the same amount of principal each year, so interest decreases faster and payments typically go down over time. With annuity amortization, the payment stays constant, meaning interest is higher at the beginning and the principal portion increases progressively. This tool helps you visualize both approaches and choose the one that matches your budget strategy.
Note: results are simplified to a yearly schedule and do not include insurance, fees, or specific banking rounding rules.