How to use this calculator
- Enter sex, age, height and weight.
- Measure neck, waist and hips.
- See fat mass in kilograms.
How it works
Fat mass equals body weight x body fat percentage, with body fat from the US Navy tape method. Tracking fat mass separately from weight shows whether weight change is coming from fat or muscle.
Reading your result
| Fit or athletic | Healthy |
|---|---|
| Average | Room to improve |
| High | Reduce with activity |
Physiotherapy treatment
Exercise and activity planning is the core of physiotherapy for body composition concern. After an assessment, your physiotherapist sets a plan built around aerobic and resistance exercise, progressed as your results improve. Hands-on treatment, pain relief and education are added where they help.
Exercises this calculator may recommend
Your result decides which of these appear, and at what dose.
Medical note
Calculators give estimates for general guidance and do not diagnose any condition. Stop and seek medical help for chest pain, fainting, sudden weakness or numbness, loss of bladder or bowel control, or severe or rapidly worsening pain. Always follow your surgeon's or doctor's instructions over any calculator.