Calculator
Amortization Calculator
See how a fixed personal loan payment splits between interest and principal, and how that split shifts over the life of the loan.
← Read the Amortization concept pagePayment per month
$1,199.10
Total paid over the loan
$431,676.38
Total interest paid
$231,676.38
How the math works
Every payment is the same size — $1,199.10 — but how much of it goes toward interest versus principal shifts as the loan balance shrinks:
First payment: $1,000.00 interest + $199.10 principal Last payment: $5.97 interest + $1,193.14 principal
Over 360 payments, this loan costs $231,676.38 in interest on top of the $200,000.00 borrowed — because early payments are mostly interest, paying extra toward principal early in the loan has an outsized effect on the total interest paid.