Because you’re not a robot with a conversion chart glued to your forehead. You want to know if your trash bag fits. Pro tip: A 13-gallon can is the standard kitchen size—roughly the volume of a small, angry dog. But in liters, it sounds suspicious like you’re smuggling garden hoses.
Here’s the hilarious part: most “13-gallon” trash bags are actually labeled in liters overseas. If you buy a 50-liter bag, it’ll fit your can like a condom on a cucumber—snug but not too tight. But a 60-liter bag? That’s like wearing your dad’s suit to a prom. Baggy and sad.