# Altitude Definition

In **mathematics**, **altitude **is defined as the **height of an object**, **point, or place compared to the sea level**. In other words, the **vertical length of anything above sea level** or **from the earth's natural surface** is known as **altitude**.

For Instance, you may hear a lot that an airplane is flying at an altitude of 5000m, or a mountain has an altitude of 200m, which means the distance between the airplane and the sea level is 5000m or the height of a mountain is 2000m.

For a more precise understanding of the concept check out a diagram listed below:

**Note:**

To know more about it, you can use our Altitude (Geometry) Definition.