Extract text from HRM files
To convert your HRM file to another format, you need Polar Flow or other Data software.
To convert other file formats to the "Biometric Telemetry Log" file type, you need software like Polar Flow or a similar tool.
The .HRM extension typically identifies data files generated by Polar heart rate monitors or HIOKI power quality analyzers. In the fitness context, these files store workout telemetry, including heart rate, speed, cadence, and altitude, often in a legacy ASCII text format. While historical Polar software (like Polar ProTrainer) relied on this format, modern fitness platforms (such as Strava, Garmin Connect, or TrainingPeaks) do not natively support direct uploads of raw .HRM files. This creates a data silo where valuable training history is locked away in an obsolete format.
In industrial settings, .HRM files contain power harmonics data from HIOKI analyzers, essential for electrical diagnostics but difficult to view without proprietary software. To make this data usable, the best practice is to convert these files to CSV for spreadsheet analysis in Microsoft Excel. For fitness data migration, converting to TCX or GPX preserves the timestamped geolocation and biometric data for import into modern tracking apps.
Convert.Guru analyzes your HRM file, detects the exact format, and lets you read the text inside.
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If you want to convert HRM file to , you can use Polar Flow or similar software from the "Heart Rate Data Log" category. In the File menu, look for Save As… or Export….
To convert files to HRM, try Polar Flow or another comparable tool in the "Heart Rate Data Log" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our HRM converter.