Tape measure.
Find A Surgeon

How Much Will You Weigh After Surgery Calculator

OC Staff Before Surgery, Calculators, Gastric Bypass, Resources

Regardless of which weight loss surgery you choose, you can expect to lose a certain amount of weight from bariatric surgery. This calculator will tell you how much weight you can expect to lose from each bariatric procedure and what you can expect to weigh two years after surgery.

CalculatorThe calculations are based on average weight loss per procedure. To lose the average amount of weight, you’ll need to follow your surgeon’s pre-operative and post-operative guidelines.

Long term diet and exercise changes along with other habit changes can lead to weight loss that exceeds the averages used in these calculations.

Calculate How Much You’ll Weigh 2 Years After Surgery

This calculator will calculate your expected weight loss based on the average excess weight loss for each procedure. Many people do much better than the number calculated. Tracking your food intake, following your diet guidelines, and implementing exercise will lead to weight loss that exceeds the average.

Male Female

On average gastric bypass patients lose about 70% (Bariatric Surgery, A Systemic Review and Meta Analysis, 2004) of their excess weight. Gastric sleeve patients lose about 60% of their excess weight. And Lap Band patients lose about 50% of their excess weight.

If you’d like to see what the top 20% of bariatric patients can expect to lose, check out this calculator. 


Share this Post