What is the regular weight for a nine year old boy
depends on the heighthttp://stanfordhospital.org/clinicsmedServices/COE/surgicalServices/generalSurgery/bariatricsurgery/resources/bmi_calculator.html?gclid=CJ7M8NKBprYCFUWd4AodrWMAtA
Get off this site. It's for 13 and up dude
This will highly depend on his height. However, the average weight for a 9 year old male is 80 to 90 pounds. You can go to http://www.disabled-world.com/artman/publish/height-weight-teens.shtml to see the average height to weight chart for girls and boys.
I think it depends on the height