I following tried to construct a custom-sized aquarium for fish tank substrate calculator a enormously specific breed of bioluminescent shrimp I bought from a guy in a dark alley. Okay, most likely it wasn't a dark alley, but it was entirely a unreliable 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 bearing in mind I was maddening to solve a riddle posed by some ancient math-obsessed sphinx.

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

Before we get into the "how," lets chat just about 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.