FFMI for 45 kg Lean Mass and 165 cm
A lean body mass of 45 kg at 165 cm yields an FFMI of approximately 16.5, typical for an untrained adult female.
How to use this tool
- Enter lean body mass and height in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your ffmi and the full breakdown beneath it.
Women naturally have lower lean mass; 45 kg at 165 cm gives an FFMI of about 16.5, well within the normal female range.
Frequently asked questions
- What is a good FFMI?
- For men, average is ~18–19; above 21 is excellent; above 25 is very unusual naturally. For women, expected values are ~2–3 units lower. These are rough population benchmarks, not targets.
- How do I get my lean body mass?
- Subtract fat mass from total weight. You need either a DEXA scan, hydrostatic weighing, or an estimation formula (e.g. Boer or Navy). Use our Lean Body Mass Calculator for a quick estimate.