Most airlines have a standard carry on size limit of 22 inches tall, 14 inches wide, and 9 inches deep, which translates to a volume of around 40-45 liters. But, let's be real, who's actually measuring their luggage with a ruler and calculator before heading to the airport? It's all about estimating and hoping you don't get caught with an oversized bag.
Now, you might be thinking, "What's the big deal about 40 liters?" Well, my friend, it's all about prioritizing what you really need for your trip. I mean, do you really need to bring that extra pair of shoes or can you just wear the same ones for the entire trip? The answer is, probably not, but we've all been there, right? It's like, "I'll just bring one more thing, it won't hurt," and before you know it, your carry on is bursting at the seams.
In all seriousness, though, knowing the liters of a carry on can save you a lot of stress and hassle at the airport. Imagine showing up to your gate, only to be told that your bag is too big and you need to check it. The horror! It's like, you've got your carry on game down pat, and then suddenly, you're forced to play a whole different game, the checking game.