Home loan calculator

Hi all,

I'm an Australian web developer and have just recently created a simple home loan calculator: http://www.homecalc.com.au

Even though there are a lot of home loan calculators out there, the idea behind this was to have a site which is simple, easy to remember and can perform some basic calculations - without having to wade through all the stuff on the much bigger bank sites.

It's only new, so I'm looking for any suggestions to improve it - keeping in mind it is meant to be for simple quick calculations and not intended to cover all cases.

Looks good for a website.

But these days I use apps which seem much more quicker and efficient.

A stamp duty calculator in there would be handy also.