Find your body fat percentage from BMI, age, and sex.
The Deurenberg equation, a published formula that estimates body fat without direct measurement.
Formula: 1.2 × BMI + 0.23 × age − (16.2 male / 5.4 female)
How accurate is this compared to a real body fat test?
It is an estimate based on large groups of people, not a direct measurement of you. Methods like DEXA scans or skinfold callipers give a more accurate result for you personally.