I've had two German Shepherds for companions in my entire life, and I've seen countless other adult German Shepherds. One of my neighbors bred German Shepherds. Typically, a German Shepherd should be between 2-3 feet tall from paw to head standing on all fours. Standing on their hind legs (which no German Shepherd should do for prolonged amounts of time, because of hip joint problems the origin of which is hidden somewhere in their breeding, keep this in mind whilst training a German Shepherd to do certain tricks), they can be between 3-4 feet tall. This is merely a rough estimation, but I hope it helped.
60 incches
The biggest German Shepherd on record weighed around 170 pounds and stood over 3 feet tall at the shoulder. Generally, males tend to be larger than females in this breed. Proper nutrition, exercise, and genetics all play a role in determining a German Shepherd's size.
Sherri Shepherd is 5'1
Giles Shepherd is 6'.
On their last years, they will grow about 3ft tall on four legs. German Shepards seem to grow faster than Labradors though.
Ana Shepherd is 5' 6".
Chester Shepherd is 5' 10".
Cue Shepherd is 5' 8".
Leonard Shepherd is 5' 9".
Leslie Shepherd is 5' 11".
Majella Shepherd is 5' 7".