The Apple Watch Calories Burned Calculator estimates calorie burn the way fitness wearables actually do it — combining activity type (MET-based estimation), heart rate data, and resting metabolic rate. Apple doesn’t publish its exact proprietary algorithm, but it’s built on the same two data sources this tool uses: movement/activity intensity and heart rate, layered on top of your personal stats. Use the Active Calories tab for a MET-based estimate by activity type, the Heart Rate Based tab for an estimate using your average heart rate during exercise (closer to how a watch behaves mid-workout), or the Total Daily Burn tab…
As an Amazon Associate, We earn from qualifying purchases.
