Sex-specific formula
Estimated body fat
13.4%
Accuracy depends on tape consistency—repeat measurements twice.
Tape measurement tips
- Neck: tape angled slightly downward at the front, just below Adam’s apple.
- Waist (male): level with the navel after a normal exhale.
- Waist (female): narrowest point between ribs and hips.
- Take two readings and average for accuracy.
Next steps
- • Log results in the comparison worksheet.
- • Use DEXA or BIA every few months to calibrate.
- • Switch to image-based analysis for fast weekly feedback.