Borrowing
Amortization calculator
Calculate a fixed loan payment and first-payment principal/interest split.
How to use this calculator
Enter Loan principal, Annual interest rate and Loan term. Calculate a fixed loan payment and first-payment principal/interest split. The answer updates when you change an input.
Understanding the result
Early fixed-loan payments usually contain more interest; the principal share grows as the balance declines.
Common questions
What assumptions does this result use?
Fixed rate, monthly payments, no extra repayments or fees; this page shows summary values rather than a full lender statement.
Are intermediate values rounded?
No. The calculation retains JavaScript number precision internally and formats only the displayed result unless the stated method requires a discrete whole value.