Shortly after entering the white rabbit's rabbit hole, Alice finds herself falling down a seemingly endless hole.
The question at hand is how deep is this rabbit hole.

To find the answer to this question we will use kinematics equations and knowledge from the movie.
Alice falls for 11 seconds in free fall and another 60 seconds at a constant velocity with her dress as a parachute.

the following equation will give us the depth of the hole in meters:




Plugging values into the equation and using 7m/s (velocity of parachutist) as the terminal velocity, we find that the rabbit hole is 1000 meters deep, or 3300 feet.