This mortgage calculator with extra payments can calculate your periodic payment, automatically creates an amortization schedule and allows you to add recurring payments or lump sum payments to your calculation.


To calculate your mortgage payment, the following fields are required: mortgage loan amount, annual interest rate, mortgage length and loan start date. These fields are highlighted red, when they are active.


Please do not use any currency or digit grouping symbols in your values. Use dot as a decimal symbol. Dates should be entered as MM/DD for recurring and MM/DD/YYYY for non-recurring payments (eg. 08/26 or 08/26/2010)

Mortgage amortization

We have set up this mortgage calculator website to help you figure out your mortgage payment. We are also happy to inform you that our calculator handles extra payments as well.

Add extra payments to every single payment, add up to five recurring or up to ten one-time lump sum payments and view the mortgage loan amortization process.

The loan's amortization table or amortization chart breaks down every payment into two portions. One portion goes towards interest and the remaining amount is applied towards the principal balance.