Calculations

So, yeah. I'm trying to figure out how much of the earth would be submerged if the polar ice caps were to melt and all the water on earth was put into the ocean - not including what's in lifeforms or our food and what not. So far, all I've got are a bunch of numbers and little idea of what to do with them. My mind may be a calculator, but even a calculator needs an equasion to know what to do with a series of numbers. Here's what I've got so far:

There are 326 million trillion galons of water on Earth.
There are 1,097,509.5 trillion cubic feet on Earth.
The diameter of the Earth at the equator is 12,756 km, or 7,926 miles.
The circumference around the Earth at the equator is 40,075 km, or 24,901 miles.
The diameter of the Earth that is solid is 6378 km.
The atmosphere above the crust conists of 1.4051 billion trillion kilograms.

So yeah. I've got an idea about what to do with it all, but maybe I'm just too lazy right now. Anyway, it's a lot of work. Would be great if I could just find a site that told me what I wanted to know. What are those lazy-ass scientists doing, anyway?