---
title: "mercatorYToLatitude | JavaScript maps SDK"
description: "Documentation for MapTiler SDK"
---

> 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.

# Function mercatorYToLatitude

-   mercatorYToLatitude(y: number): number[](#mercatorytolatitude)
    
    Converts a mercator Y (north-south axis in \[0, 1\]) to wgs84 latitude
    
    #### Parameters
    
    -   y: number
    
    #### Returns number