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Apple Health metrics › Body Fat Percentage
Body Fat Percentage on Apple Watch and iPhone
The share of your weight that is fat, from a smart scale or manual entry.
Where to find itHealth app > Browse > Body Measurements > Body Fat Percentage
What it is
Body fat percentage separates fat from muscle, which BMI cannot do. Consumer scales estimate it from bioelectrical impedance and can be off by a few points.
How Apple measures it
Apple Health stores values from compatible smart scales or entries you add.
What's a normal range?
Healthy ranges are roughly 10 to 20% for men and 20 to 30% for women, with age-related differences.
What moves it
- Hydration (affects scales)
- Time of day
- Training and diet
- Scale accuracy
- Age
See Body Fat Percentage next to your other vitals
Apple Health keeps this number several taps deep. OnlyVitals puts the metrics you pick, including Body Fat Percentage, on a single dashboard so you can read them at a glance. Everything stays on your device.
One screen for the health numbers you care about.
Get OnlyVitals on the App StoreFrequently asked questions
What is a healthy body fat percentage?
Roughly 10 to 20% for men and 20 to 30% for women, depending on age and goals.
How accurate are body fat scales?
They can be off by several percentage points and swing with hydration. Track the trend with consistent conditions.
Related metrics
- Resting Heart Rate
- Heart Rate Variability (HRV)
- VO2 Max (Cardio Fitness)
- Blood Oxygen (SpO2)
- Respiratory Rate
- Steps
This page is general information, not medical advice. Ranges vary by age, sex, fitness and device. Talk to a clinician about anything that worries you.