Why is this a separate tool from the generic reprojector?

WGS84 Web Mercator is the single most common GIS coordinate conversion (basemap tiles, web maps) - this page is a dedicated, faster path for exactly that pair.

WGS84 to Web Mercator Converter

Convert longitude/latitude (WGS84) to/from Web Mercator (EPSG:3857) meters.

WGS84 → Web Mercator

Longitude

Latitude

-13627665.271, 4547675.354

Web Mercator → WGS84

-122.419400, 37.774900

Runs entirely in your browser - nothing is sent to a server.

Related tools

Lng/Lat ↔ Tile Converter
Tile ↔ Quadkey Converter
Tile to Bounding Box
Bbox to Zoom Calculator

How it works

1
Pick a direction

Enter longitude/latitude, or enter Web Mercator X/Y - both directions work.
2
Read the result

The other side updates instantly.

FAQ

Why is this a separate tool from the generic reprojector?: WGS84 <-> Web Mercator is the single most common GIS coordinate conversion (basemap tiles, web maps) - this page is a dedicated, faster path for exactly that pair.