I subsequent to tried to build a custom-sized aquarium for a completely specific breed of bioluminescent shrimp I bought from a boy in a dark alley. Okay, maybe it wasn't a dark alley, but it was very a undependable Craigslist ad. I had the glass. I had the silicone. I had a ruler that was missing the first three millimeters. What I didnt have was a clue. I kept staring at the glass panels, wondering, "Wait, how to determine litres from centimeters?" It felt with I was trying to solve a riddle posed by some ancient math-obsessed sphinx.

Calculations are annoying. They just are. We flesh and blood in a world where we desire the volume of our coffee mugs and our garden ponds to just magically appear in our heads. But the universe demands award in the form of arithmetic. If you have ever felt physically hard done by by the sight of a measuring tape, you are in the right place. Lets rupture beside the logic of liquid volume without making your brain leak out of your ears.

Before we get into the "how," lets chat more or less the "why." Why get we use centimeters at all? Why not inches? Or cubits? Or the length of a medium-sized banana? Centimeters are glorious because they belong to the metric system. The metric system is a neat, fish tank size calculator tidy room where anything fits into boxes of ten.