---
title: "EARTH_RADIUS | Mobile sdk | Mobile sdk android | Android"
description: "EARTH_RADIUS"
---

> For AI agents: a documentation index is available at [/llms.txt](https://docs.maptiler.com/llms.txt). Markdown versions of all pages are available by appending .md to any URL.

# EARTH\_RADIUS

const val [EARTH\_RADIUS](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.helpers/-m-t-math/-e-a-r-t-h_-r-a-d-i-u-s/): [Double](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-double/index.html) = 6378137.0

Radius of the Earth in meters.