Honest personal assessment tools

Whether you’re just now thinking about losing weight, or you’re well on your way, it’s important to know where you stand. That’s why we offer these quick self-assessments.

What’s your BMI?

Use this calculator to find out what your Body Mass Index can tell you about your health and well-being.

BMI Calculator

What’s your healthy weight range?

Discover a healthy weight range for your height and weight.

Healthy Weight Ranges

Are you ready to commit to losing weight?

Take this self-assessment to learn if you understand what it takes to lose weight.

Assess your readiness

The Weight Watchers approach to weight loss

Four Pillars of our science-based approach: behavior, support, exercise, food

Our food plans are just part of the overall Weight Watchers approach. We also offer advice on developing healthy habits, building a supportive environment, and getting exercise—and why these “Four Pillars” can help you lose weight and keep it off for good.

Our approach

How they knew they were ready

“I knew the moment my grandson was born. I wanted to be able to run, play ball and ride bikes with him.”
- Lisa

“I was 27, too young to be out of breath after going up a flight of stairs.”
- Michelle

¹New England Journal of Medicine, from Wadden TA, Phelan S. Behavioral assessment of the obese patient. Stunkard AJ, eds. Handbook of obesity treatment. New York: Guilford Press, 2002:186-226.