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Coordinates to Maidenhead

Convert latitude and longitude to Maidenhead locator system (used by amateur radio operators)

Key Facts

Category
Geography
Input Types
number
Output Type
json
Sample Coverage
4
API Ready
Yes

Overview

This tool converts geographic coordinates (latitude and longitude) into the Maidenhead locator system, a grid-based code commonly used by amateur radio operators to specify locations for communication and logging.

When to Use

  • •When you need to determine your Maidenhead grid square for amateur radio contacts or contests.
  • •When converting GPS coordinates to a standardized locator format for mapping or station setup.
  • •When planning radio operations that require precise grid square information for logging or coordination.

How It Works

  • •Enter the latitude value between -90 and 90 degrees in the designated field.
  • •Enter the longitude value between -180 and 180 degrees in the designated field.
  • •The tool processes the inputs and outputs the corresponding Maidenhead locator code in JSON format.

Use Cases

Amateur radio operators sharing their grid square during contests or daily communications.
Logging contacts in radio logs where Maidenhead locators are required for record-keeping.
Integrating coordinate data into software or maps that utilize the Maidenhead system for location referencing.

Examples

1. Convert New York City Coordinates

Amateur radio operator
Background
An operator in New York needs to find their Maidenhead grid square for a radio contest.
Problem
Convert latitude 40.7128 and longitude -74.0060 to a Maidenhead code for contest logging.
How to Use
Enter latitude 40.7128 and longitude -74.0060 into the tool's input fields.
Outcome
The tool outputs the Maidenhead locator 'FN30as' in JSON format, ready for use in logs.

2. Locate a Remote Station

Radio enthusiast
Background
Planning a contact with a station at coordinates latitude 51.5074 and longitude -0.1278.
Problem
Need the grid square to ensure accurate communication and logging.
How to Use
Input latitude 51.5074 and longitude -0.1278 into the tool.
Outcome
Receive the Maidenhead code 'IO91wm' in JSON, facilitating clear contact records.

Try with Samples

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FAQ

What is a Maidenhead locator?

A Maidenhead locator is a grid-based system used to represent geographic locations, primarily in amateur radio for specifying positions.

How accurate is the conversion?

The conversion is precise based on the input coordinates, generating a standard 6-character Maidenhead code.

Can I use this for locations outside Earth?

No, this tool is designed only for Earth-based coordinates within the specified latitude and longitude ranges.

What format does the output use?

The output is provided in JSON format, containing the Maidenhead locator string derived from the coordinates.

Are there any limitations on input values?

Yes, latitude must be between -90 and 90, and longitude between -180 and 180; values outside these ranges are not supported.

API Documentation

Request Endpoint

POST /en/api/tools/coords-to-maidenhead

Request Parameters

Parameter Name Type Required Description
latitude number Yes -
longitude number Yes -

Response Format

{
  "key": {...},
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}
JSON Data: JSON Data

AI MCP Documentation

Add this tool to your MCP server configuration: 

{
  "mcpServers": {
    "elysiatools-coords-to-maidenhead": {
      "name": "coords-to-maidenhead",
      "description": "Convert latitude and longitude to Maidenhead locator system (used by amateur radio operators)",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=coords-to-maidenhead",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

You can chain multiple tools, e.g.: `https://elysiatools.com/mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp`, max 20 tools.

If you encounter any issues, please contact us at [email protected]