Determining the crowds at certain parks can be valuable. It can help 你 plan Fastpasses,determine whether another park would be better that day, whatever. My guide for determining crowds will let 你 determine the crowd 由 looking at two 或者 three rides.

Magic Kingdom:
Except for Extra Magic Hours days (in which 你 should only spend the evening here), do not come to Magic Kingdom on weekends 或者 holidays. It is excessively crowded on these days. Out of all the theme parks, this one will most likely be the most crowded on any 给 日 (unless another park has a special event going on that day).

Look to two rides to decide if 你 should head to another theme park (most likely Epcot) 或者 find something else to do that day:

Peter Pan: This ride is always crowded. If it's 55 minutes, you're looking at a pretty normal day. If it's 更多 than two hours, 你 have an excessive crowd. If it's 30 minutes, you're looking at a nice 日 for riding. If its five minutes, then 你 should be able to ride every ride in the park within a few hours, because that is an excessively low day.

Tomorrowland People Mover: If 你 have to wait any 更多 than 10 分钟 for this one, head to Epcot, because you're looking at some tough crowds here.

Epcot

This park is a pretty easy park to deal with, even in a crowded situation. Even if it is crowded, 你 can still do the countries. However, if you're looking to do all rides, look to these two. This park is great for any 日 of the week. Holidays and during the 食物 and Wine Festival and 花 and Garden 显示 tend to induce heavier crowds.

Soarin': If it's about an 小时 to an 小时 and a half, you're looking at a pretty normal crowd. If it's 30 minutes, then its a light crowd (and 由 the way, if it is thirty minutes, then 你 should ride it. Like, right then, because 你 rarely see it). If it gets down to ten minutes, then the park is not crowded at all (and 你 should ride this one, because I've never seen it that low, and if I were you, I'd get on it). If its up at 120 minutes, make sure that Test Track isn't closed. If it is, that's why. If it isn't, then if Test Track's wait is about the same (which is pretty common) then you're looking at a heavy day.

The Seas with Nemo: If 你 have to wait 更多 than 20 分钟 for it, the crowd is heavy that 日 (unless everything else in the park happens to be broken down at that particular moment)

Hollywood Studios
This park is better done during the middle of the week, unless 你 want to see Fantasmic and it's only playing on the weekend. 星, 星级 Wars weekends and holidays induce heavier crowds.

Toy Story Mania: Don't worry, even if this one is 120 minutes, 你 may still have a lighter crowd. This one tends to be crowded. However, if it gets down to 45 minutes, 或者 god forbid 20 分钟 (which I have NEVER seen, even at the end of the night) then you're looking at a light crowd.

Rock n' Roller Coaster and Tower of Terror: Check these as a combo. If both are up over two hours, then you've got a heavy crowd. If both are about an hour, your crowd is normal. If one is about 30 分钟 and the other one is more, your crowd is normal to low. If both are 30 minutes, your crowd is very low. If both are under 30 minutes, then 你 have an extremely light crowd.

Muppets: If 你 have to wait at all for this one (other than just the preshow) then 你 have a heavy crowd

Animal Kingdom

This park is a great one for weekends because it generally isn't as crowded. For some reason, this one is 更多 crowded middle of the week.

Expedition Everest: If this one is about an 小时 to an 小时 and a half, you're looking at a normal day. If this one is less than an hour, you've got a low crowd day. If it's five minutes, then you're either extremely lucky at that point 或者 the crowd is exceptionally low. If it's up over two hours, then you've got a crowded day.

Primeval Whirl: This ride on a normal 日 will run about 30 minutes. 60 分钟 is a heavier crowd, 更多 than that is extremely heavy. If it's down at about 5 minutes, 你 have a light crowd.

I hope this help with determining the crowd. This isn't the only way to determine the crowd levels, but it's pretty simple.