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MapKmlTools

Global Coordinate Conversion Tool

Convert coordinates between Lat/Lon, UTM, and MGRS instantly. Free browser tool with no upload required for secure GIS data transformation.

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Coordinate Converter Pro

v2.0
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Input Settings

Or Batch CSV / Excel

Drag and Drop CSV / Excel

Auto-extracts coordinate columns for conversion

UNKNOWN
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Live Results

Decimal Degrees

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DMS

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UTM

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MGRS

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Indian Grid

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Coordinate Converter Pro – The Ultimate GIS Tool

Convert geographic coordinates between Latitude/Longitude (Decimal Degrees and DMS), Universal Transverse Mercator (UTM), Military Grid Reference System (MGRS), and specific EPSG systems like the Indian Grid (EPSG:24370 - 24374).

Unlike server-based converters, Coordinate Converter Pro uses Web Workers to process massive CSV files (50,000+ rows) entirely within your browser. Your location data never leaves your device, ensuring 100% privacy and blazing-fast conversion speeds.

Supported Formats

Decimal Degrees (Lat/Lon)

12.9716, 77.5946

Standard GPS format used by Google Maps and most web mapping APIs.

Degrees Minutes Seconds (DMS)

12°58'17.76"N 77°35'40.56"E

Classic navigation format commonly used in nautical charts and older surveys.

UTM (Universal Transverse Mercator)

43N 345678 1432567

Divides the Earth into 60 zones. Ideal for measuring distances in meters.

MGRS (Military Grid Reference System)

43P DP 45678 32567

Standard for NATO militaries. Provides alphanumeric strings for specific meter-level precision.

Frequently Asked Questions (FAQ)

How do I convert a CSV file?

Simply drag and drop your CSV file into the "Batch CSV" zone. Make sure your file has headers named `lat` and `lon`, or a single `coordinate` column. The tool will download a new file containing all conversions.

Is the Indian Grid supported?

Yes! We fully support the Everest 1830 ellipsoid used for EPSG codes 24370 through 24374, making this an ideal tool for Indian surveyors and GIS professionals.

Does my data get uploaded to a server?

No. All calculations are performed entirely in your browser using JavaScript Web Workers. File uploads never leave your computer.

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What is Coord Converter?

Different industries use different coordinate systems. Military uses MGRS, surveyors use UTM, while Google Maps uses Decimal Degrees (DD).

This tool acts as a universal translator, allowing you to convert single points or entire spreadsheets between these systems without complex math formula.

When Should You Use This Tool?

  • •You just received a survey in UTM format but need to plot it on Google Maps.
  • •You need to convert a military MGRS grid ref to a GPS coordinate.
  • •You have a CSV of coordinates you need to standardize.

How to Use Coord Converter

  1. Enter your coordinates in the input box.
  2. Select the input format (e.g., DMS or UTM).
  3. The tool instantly calculates all other formats.
  4. View the location on the map to verify accuracy.

Frequently Asked Questions

Q:Is Coordinate Converter free to use?

Yes, global coordinate conversion is fully free.

Q:Does Coordinate Converter upload my files to a server?

No, all mathematical transformations stay on your machine with no upload required.

Q:What file formats does Coordinate Converter support?

Supports manual input, CSV, and KML file processing.

Q:Does it support WGS84?

Yes, it uses WGS84 as the primary datum for all conversions.

Q:What coordinate formats does this tool convert between?

The tool converts between Decimal Degrees (DD), Degrees Minutes Seconds (DMS), Degrees Decimal Minutes (DDM), UTM (Universal Transverse Mercator), and MGRS (Military Grid Reference System). All conversions are bidirectional.

Q:What datum is used for conversions?

WGS84 is the default datum, which is the standard used by GPS devices, Google Earth, and most modern GIS software. This is the same as the EPSG:4326 coordinate reference system.

Q:Can I batch convert hundreds of coordinates?

Yes. Upload a CSV file with your coordinates and select the input format. The tool converts every row and lets you download the enriched CSV with all formats added as new columns.

Q:Is my data uploaded to your servers?

No. All coordinate math runs locally in your browser. No coordinates or files are sent to any server.

Q:What is the difference between UTM and MGRS?

Both use a grid system based on metres. UTM gives you a zone number, letter, and X/Y easting/northing values (e.g., 37N 234567 3456789). MGRS is a military format that encodes the same location as a compact alphanumeric code used by NATO forces (e.g., 37TEK3456789).