The Spiral in a Snail Shell

In the classic spiral, you get bigger and bigger and bigger. That's what you get when you wrap rope or something around. It's spiraling out, but it's not getting thicker as you go. So the toilet paper is technically one continuous spiral coming out. And Archimedean spiral is a spiral where it doesn't get bigger as you spiral out. If anyone wants to redo this calculation as a spiral using a 12 centimeter diameter, 4 centimeter hole through the middle, half a nanometer width paper, I ran the numbers on,. Then I rounded the answer at 20 million meters.