Europeans thinking a 2h trip is a long ass trip. Then they come visit North America thinking they can visit from coast to coast by car in two weeks.
North Americans going to Europe thinking it'll take 4 hours to go from one city to the next when they can actually cross three whole countries in that time frame.
The most culture shock I've ever experienced was being in southern France, craving some Italian, and realizing I can literally just go to Italy for dinner.
Honestly I blame American TV for this. Especially anything involving the FBI! In Hannibal they zip between states non stop like it's nothing. I assume it's all supposed to be happening over many days, but it just seems like they're going to and from work in Minnesota and home in Virginia lol
It's nice to have some quick mental conversions ready.
1 mile is roughly 1.6 km, so 100 miles is roughly 160 km
3 feet is roughly a meter
2 pounds are roughly 1 kg
1 gallon is roughly 4 liters
32 fahrenheit it 0 celcius, 100 fahrenheit is slightly over body temperature, 200 fahrenheit is almost enough to boil water... Any other value requires math to figure out...
I grew up in Texas and moved to England. I remember my first weekend there looking at a map thinking of going to visit Cambridge. It was a couple of inches away on the map and I thought, should be an hour maybe an hour and half drive. Imagine my surprise when I arrived in Cambridge in 20 minutes. I forgot to take into consideration scale.