How Much Should You Weigh at 13?

A child's weight depends on body type.

Body Mass Index

If any child's weight falls between the 5th and the 85th percentile on the Body Mass Index (BMI) growth chart, then the child is the correct weight, according to websites Kids Health and Net Wellness. If a child's weight is below the 5th, he is underweight and if over the 85th, he is overweight.

Growth Spurts of Puberty

Children do not grow at the same rate, and, according to the Kids Health Organization, a child's weight depends growth spurts. At 13, if a child has not entered puberty, he will weigh less than a child who has entered puberty and is experiencing physical changes and rapid weight gain.

Bottom Line

Take your child to a doctor if you are concerned that his weight is somewhat abnormal. Correct weight for a 13-year-old should fall between the 5th to the 85th percentiles on the BMI growth chart. However, a child's weight is dependent on body type and whether or not the child is experiencing puberty.

References

• Net Wellness: Diet and Nutrition
• Kids Health: Your Child's Weight