http://www.fatfreekitchen.com/weightloss/bmi.html
or calculate yourself:
Women: 655 + (9.6 x W) + (1.7 x H) - (4.7 x A) = BMR
Men: 66 + (13.7 x W) + (5 x H) - (6.8 x A) = BMR
(W = weight in kg , H = height in cm, A = age in years)
To convert pounds to kg: weight in pounds divided by 2.2
To convert inches to centimeters: height in inches times 2.54