The query "how tall is" is incomplete and ambiguous by itself, as it does not specify what or who is being asked about in terms of height. To clarify:
- "How tall is" can apply to a person, animal, object, building, etc.
- Specifics such as the name of the person or item, the category, or context are needed to give a precise answer.
Human height generally refers to the measurement from the bottom of the feet to the top of the head when standing erect. Average human heights vary by population group, sex, age, and region. If the question is about human average heights:
- Adult women average about 163 cm (5 ft 3.8 in) tall.
- Adult men average about 177 cm (5 ft 9.7 in) tall.
- Heights vary across countries; for example, the average male height in the Netherlands is roughly 184 cm (6 ft 0.4 in), considered tall in many other places.
Please specify the subject or context of "how tall is" for a complete answer.