WomensHealth.gov
The National Women’s Health Information Center of the U.S. Department of Health and Human Services provides an excellent coverage of women’s health topics and issues. It offers health calculators, age-based interactive screening charts, print-to-go guides and many other tools and resources.
HealthCentral.com
Offers a number of tools and calculators including a stress test, a home body fat test, waist-to-hip ratio calculator, protein charts, ideal body weight tables, etc.
YourTotalHealth
If you're trying to get a handle on your health, you can check out a number of the health tools offered by this site. Choose the calculation you want (e.g. Body Mass Index, Daily Caloric/Fat/Calcium/Iron Requirements or Target Heart Rate), select your measurement preferences and click for the results.
National Institute of Health
This site/agency covers a huge selection of topics and research related to Women’s Health.
MyPyramid.gov
The U.S. Department of Agriculture has set up a site that offers personalized eating plans and interactive tools to help you plan/assess your food choices based on the Dietary Guidelines for Americans. Here is a link to the most recent food pyramid with explanations on its different parts.
There are several sites on the web that offer exhaustive materials and information on different issues related to women’s health. The most visited and recognized places are: webmd, msnhealth, mayoclinic, about and healthywomen.