So, what’s bigger? The mile. It’s about 60% longer. But don’t get smug. If you’re walking, the kilometer is easier. A mile takes 20 minutes of brisk walking. A kilometer takes 12. You can brag about walking a mile in 20, or a kilometer in 12. The choice is yours.
Remember this: the mile is the big brother. The kilometer is the efficient one. Both are useful. But if you ever need to win a bar bet, shout: "A mile is 1.6 kilometers, duh!" Then walk away. You’re now the smartest person in the room. Or at least the funniest.