GPRMC Decoder

Decode GPRMC NMEA sentences to extract GPS coordinates, speed, course, and timestamp information.

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Total Calculations Run

< 15ms

Browser Execution Speed

100%

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Worked Example & Common Values

Below is a sample worked calculation demonstrating how GPRMC Decoder processes input data instantly inside your browser.

Sample Input Minified string: {"id":1,"status":"active","roles":["admin"]}

Computed Result

{
  "id": 1,
  "status": "active",
  "roles": [
    "admin"
  ]
}

Execution Mode Client-Side In-Browser JS

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About This Tool

This GPRMC Decoder tool allows you to parse and decode GPRMC (Recommended Minimum Specific GPS/Transit Data) sentences from the NMEA 0183 standard. Simply paste a GPRMC sentence or upload a file containing GPS data, and the tool will extract all meaningful information including latitude, longitude, speed over ground, course over ground, UTC date and time, magnetic variation, and data status. The tool validates the sentence format and checksum to ensure accurate decoding. Perfect for developers, marine navigators, drone operators, and GPS data analysts.

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How to Use

Enter a GPRMC sentence in the text area (e.g., $GPRMC,123519,A,
038,N,
000,E,
4,
4,230394,
1,W*6A) or upload a .txt/.nmea file containing GPS data.
Click the 'Decode GPRMC' button to process the data.
View the decoded results including coordinates, speed, course, date, time, and status.
Use the 'Clear' button to reset the form and start over.

Frequently Asked Questions

Find Quick Answers

What is a GPRMC sentence?

GPRMC (Recommended Minimum Specific GPS/Transit Data) is a standard NMEA 0183 sentence that contains essential GPS navigation data including position, speed, course, date, and time.

What format should the GPRMC sentence be in?

The sentence should start with $GPRMC, followed by comma-separated fields: UTC time, status, latitude, latitude direction, longitude, longitude direction, speed, course, UTC date, magnetic variation, magnetic variation direction, and checksum (e.g., $GPRMC,123519,A,4807.038,N,01131.000,E,022.4,084.4,230394,003.1,W*6A).

Does this tool validate the checksum?

Yes, the tool automatically validates the NMEA checksum to ensure data integrity before decoding.

Can I upload files with multiple GPS sentences?

Yes, you can upload files containing multiple sentences. The tool will extract and decode all GPRMC sentences found in the file.

What coordinate formats are supported?

The tool converts NMEA format (DDMM.MMM) to decimal degrees (DD.DDDDD) for easier use in mapping applications.

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