bizSkinny.com provides easy to use quick reference online calculators that solve basic or scientific problems for school, business or personal use. I have been working on this site for a long time now, and while there are still a lot of calculators that I haven't created yet we offer quite a few. So far we cover the following areas of math; algebra, geometry, finance, health, statistics, math, loans, and more. Our calculators are online for free! If you have a suggestion, please contact us.