How big are white tigers?

white tigers can get up to 1,000 pounds once grown up
White tigers are a genetic variation of Bengal tigers with white fur. Like other colored Bengals, they are approximately 3 feet at the shoulder.
== == About 9 feet at tops.
The size of a White Tiger depends greatly on the subspecies. Generally, the head and body length of a White Tiger is about 4 and a half to 9 feet (1.4 to 2.8 m) long. The tail adds another 3 to 4 feet (90 to 120 cm) to the total length.

Siberian tigers are the heaviest subspecies weighing in at maybe 500 or more pounds (225 kg) the lightest males weigh about 250 pounds (110 kg) and females are 200 pounds (90 kg)