How far does the atmosphere of earth reach?

The Earth's atmosphere extends about 10,000 kilometers (approximately 6,200 miles) above the surface, but most of its mass is concentrated within the first 50 kilometers (about 31 miles). The atmosphere is divided into several layers, including the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. While the exosphere can reach into space, the majority of weather and life-sustaining processes occur within the troposphere, which extends up to about 8 to 15 kilometers (5 to 9 miles) depending on the location.