Here's a general idea of their size range:
Weight:
* Males: 100-300 kg (220-660 lbs)
* Females: 65-170 kg (140-370 lbs)
Length:
* Head-to-tail: 2.5-3.3 meters (8-11 feet)
Height:
* Shoulder height: 1-1.2 meters (3.3-4 feet)
Factors that affect size:
* Subspecies: Siberian tigers are the largest, while Sumatran tigers are the smallest.
* Habitat: Tigers in areas with abundant prey tend to be larger than those in areas with less food.
* Individual variation: Just like humans, there is natural variation in size among individual tigers.
Let me know if you'd like more details on a specific tiger subspecies!