# What is the thickness of the earth atmosphere?

Jan 30, 2016

#### Answer:

The Earth's atmosphere is considered to be 100km thick.

#### Explanation:

It is almost impossible to give an exact value for the thickness of the Earth's atmosphere, or the atmosphere of any planet. The reason for this is as you increase in altitude the atmosphere gets progressively thinner.

It is generally accepted that outer space starts at an altitude of $100 k m$. Hence the value of $100 k m$ for the thickness of the atmosphere.