Minimum body fat for females?

I've had 2 different body fat monitor scales in the past few years, but I think the readings must be off - what's the minimum body fat for a female in early 20s? Both of my scales were giving me readings around the 5%-8% area (5% at night, 7% and change in the am) . . . has anyone else compared Tanita body fat monitors with something more accurate like water displacement or a bodpod?

Public Comments

1. if you relly like a gurl wat does body fat have to do with it just as long as shes secure with her self..
2. 10%-12% is the minimum amount of fat your body needs just to function. Doctors recommend women do not go below 13%-17% body fat. You should try body fat callipers instead. Biolectrical impedance scales are notoriously inaccurate.