Measuring body fat is the same for the most part, but women naturally have higher bf% than men and that is still considered healthy. If a woman drops down to say, 10% bodyfat, that is actually a big issue; she can skip her periods and all other kinds of bad stuff can happen. From many different articles I've read, I've concluded that the average adult body fat is closer to 15 to 18% for men and 22 to 25% for women. For athletes its closer to 5-12% for men and 12-20% for women. Also remember the size of breasts also comes into play, big time, as breasts are almost entirely fat, but women "tend" to lose fat in the breasts before say the stomach, much to most people's dismay.
