How to Export VO2 Max Data from Apple Watch

In short

To export VO2 max data from Apple Watch, download HealthSave free, grant Apple Health access, and export from the Export tab as CSV, JSON, or PDF. VO2 max estimates your maximum oxygen consumption during exercise in mL/kg/min, higher means better cardiorespiratory fitness, and Apple Watch estimates it from outdoor walks, runs, and hikes. HealthSave charts 7/30/90-day trends with Pro.

Updated March 23, 2026

In this article

What is VO2 Max Data?

VO2 Max estimates your maximum oxygen consumption during exercise, measured in mL/kg/min. Higher values indicate better cardiorespiratory fitness. Apple Watch estimates VO2 Max from outdoor walks, runs, and hikes.

How to Export VO2 Max Data with HealthSave

1. Download HealthSave

Get HealthSave from the App Store, it's free. No account or sign-up needed.

2. Grant Apple Health Access

When you open HealthSave, grant access to the relevant health metrics in Apple Health. Make sure VO2 Max Data is enabled.

3. View on Dashboard

Your latest data appears on the HealthSave dashboard. With Pro, you can track 7/30/90-day trends.

4. Export to CSV, JSON, or PDF

Go to the Export tab, select VO2 Max Data, choose your date range and format:

  • CSV, opens in Excel, Google Sheets, Apple Numbers
  • JSON, structured data for developers and APIs
  • PDF, formatted report to share with your doctor (Pro)

Why Export This Data?

Track fitness improvements over months of training. Compare your VO2 Max to age/gender benchmarks. Share fitness progression with your trainer or doctor.

Related Metrics You Can Export

HealthSave can also export active calories, workout data, heart rate and other core Apple Health metrics. See the full feature list or check supported devices.

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