Oprah's BMI is now at 32.3.

BMI (body mass index) is a measure of body fat based on height and weight that applies to both adult men and women.

Oprah's height is five feet and six inches. A BMI of between 18.5 to 25 is normal weight, from 25 to 29.9 is considered overweight and over 30 is considered obese.

She's not very happy about it. She writes in the January 2009 issue of O, The Oprah Magazine that she has gained 40 pounds in the last couple of years. She had been down to 160 pounds in 2006 but she is now up to 200.

She says, "I'm embarrassed … I can't believe that after all these years, all the things I know how to do, I'm still talking about my weight."

See her story at People Magazine.

If you know your height and weight in inches and pounds, you can calculate your BMI here.

See Oprah's weight loss history (including how she got to her lowest weight in 1988) here.