Is this a real interactive map with roads and place names?

No. It's a schematic equirectangular grid, just longitude and latitude lines evenly spaced across a rectangle, used purely as a click surface for picking coordinates. There's no basemap imagery, because that would mean fetching map tiles from a third-party server, and this tool (like every tool on this site) never sends anything over the network.

How accurate is the click-to-coordinate conversion?

It's exact for the equirectangular projection the grid uses: x position maps linearly to longitude (-180 to 180) and y position maps linearly to latitude (90 to -90). What it can't give you is real-world landmarks to click on, since there's no map imagery to click against.

What does the generated Maps URL do?

It's a plain string in the form https://www.google.com/maps?q={lat},{lng}, built with simple string concatenation. The tool doesn't open it or call any API, it just hands you a ready-to-paste link built from whatever point you picked.

Can I type coordinates instead of clicking?

Yes, the lat and lng number fields are two-way bound to the marker: typing a value moves the marker to that position on the grid, and clicking the grid updates the number fields to match.

Lat/Lng Point Finder - Click a Grid to Get Coordinates

Overview

Introduction

Sometimes you just need a quick decimal-degree latitude and longitude for a point, without opening a full mapping application. Lat/Lng Point Finder gives you a click surface for exactly that.

Click anywhere on the grid to drop a marker, or type coordinates directly, and read off the decimal-degree position plus a ready-to-use Google Maps URL.

What Is Lat/Lng Point Finder?

A coordinate picker built on a plain equirectangular longitude/latitude grid: vertical lines every 30 degrees of longitude, horizontal lines every 15 degrees of latitude, and a border, with no map imagery underneath.

It's deliberately a schematic grid, not a basemap. The whole point is coordinate math you can verify at a glance, not a full mapping experience with roads and place labels.

How Lat/Lng Point Finder Works

A click event's position relative to the SVG grid's bounding box is converted to fractional x/y coordinates, then linearly mapped to longitude (-180 at the left edge, 180 at the right) and latitude (90 at the top edge, -90 at the bottom).

The same math runs in reverse for the manual lat/lng inputs, so typing a coordinate moves the marker to the matching grid position, keeping the click surface and the number fields in sync in both directions.

When To Use Lat/Lng Point Finder

Use this whenever you need a rough decimal-degree coordinate for a point and don't want to open a full mapping application just to read off numbers.

It's also handy for building test data, since you can visually pick points spread across the globe and immediately get coordinates and a Maps link for each one.

Often used alongside GeoJSON Viewer.

Features

Advantages

Instant coordinate picking with no map tiles to load and nothing sent over the network.
Two-way binding between the grid and the number inputs, so you can start from either a click or a typed value.
Generates a ready-to-paste Google Maps URL alongside the raw decimal-degree coordinates.

Limitations

The grid has no roads, place names, or terrain, it's a coordinate picker, not a lookup tool for finding a specific real-world location.
Precision is limited by how precisely you can click a small rectangle. Manual entry is more exact for coordinates you already know.

Examples

Picking a point near the grid's center

Input

Click at pixel (360, 180) on a 720x360 grid

Output

lat: 0.000000, lng: 0.000000
https://www.google.com/maps?q=0,0

The center of the grid corresponds to the intersection of the equator and the prime meridian, since x=360 is exactly halfway (longitude 0) and y=180 is exactly halfway (latitude 0).

Best Practices & Notes

Best Practices

Use the manual lat/lng fields when you already know the coordinates and just want the Maps URL generated.
Use the grid click when you're estimating a rough location visually rather than starting from known numbers.
Copy the Maps URL with the copy button rather than retyping it, to avoid transcription errors in the coordinates.

Developer Notes

`svgCoordsToLatLng` and `latLngToSvgCoords` in `lat-lng-point-finder.ts` are pure inverse functions of each other over the same linear mapping, and `googleMapsUrl` is plain string interpolation, none of the three touch the network or any browser API, which keeps them trivially unit-testable and keeps the component's click handler a thin wrapper around `getBoundingClientRect()` plus one function call.

Lat/Lng Point Finder Use Cases

Quickly reading off decimal-degree coordinates for a rough point without opening a mapping application
Generating a Google Maps URL for a coordinate you already have, or one you just clicked
Building sample lat/lng test data spread across different regions of the globe

Common Mistakes

Expecting the grid to show real geography (coastlines, borders, cities) to click against, it's an evenly spaced graticule only.
Assuming the Maps URL was verified by an actual network request, it's pure string construction from the coordinates you picked, nothing is fetched or validated.

Tips

Zoom your browser in before clicking if you need finer control over where on the grid you land.
Pair with GeoJSON Viewer once you have a set of points, to see them plotted together instead of one at a time.

Lat/Lng Point Finder