With obesity and its related problems like heart diseases and high blood pressure on the rise nowadays, people all over the world are increasingly concerned about their weight and overall health. It is a known fact that maintaining proper weight based on one's height and age is a prerequisite in order to stay healthy in the long run.

Answers to common fitness questions like how much should my ideal weight be for being healthy, or is my weight in sync with my height, can help in judging whether you are fit, underweight or overweight. In this article, we look at the ideal weight for height and age in children as well as adults.

Weight Height Ratio for Children

Childhood is an important growth phase which is marked by physical, mental, and psychological developments. Parents have to constantly monitor the weight and height to ensure proper growth of the child. Moreover, childhood obesity is a growing concern, especially in developed countries, and hence, parents need to keep a tab of the increasing weight of a child. Here is a height and weight chart for children, based on the guidelines and growth charts provided by the Centers for Disease Control and Prevention (CDC) and World Health Organization (WHO).

Age Height Weight for Boys
AgeAverage HeightAverage Weight
1 Month21.69.8
2 Months23.012.3
3 Months24.214.1
4 Months25.215.4
5 Months26.016.6
6 Months26.617.5
7 Months27.218.3
8 Months27.819.0
9 Months28.319.6
10 Months28.820.1
11 Months29.320.8
1 year29.821.3
13 Months30.321.8
14 Months30.722.3
15 Months31.222.7
16 Months31.623.2
17 Months32.023.7
18 Months32.424.1
20 Months33.125.0
21 Months33.525.5
22 Months33.925.9
23 Months34.226.3
2 years34.227.5
3 years37.531.0
4 years40.340.5
5 years43.040.5
6 years45.545.5
7 years48.050.5
8 years50.456.5
9 years52.563.0
10 years54.570.5
11 years56.578.5
12-13 years58 - 6288 - 100
14-15 years64 - 67112 - 123
16-17 years68 - 69134 - 142
18-20 years69 - 70147 - 155
Age Height Weight for Girls
AgeAverage HeightAverage Weight
1 Month21.29.6
2 Months22.111.7
3 Months23.613.3
4 Months24.514.6
5 Months25.315.8
6 Months25.916.6
7 Months26.517.4
8 Months27.118.1
9 Months27.618.8
10 Months28.219.4
11 Months28.719.9
1 year29.220.4
13 Months29.621.0
14 Months30.121.5
15 Months30.622.0
16 Months30.922.5
17 Months31.423.0
18 Months31.823.4
20 Months32.624.4
21 Months32.924.9
22 Months33.425.4
23 Months33.725.9
2 years33.526.5
3 years37.031.5
4 years39.534.0
5 years42.539.5
6 years45.544.0
7 years47.749.5
8 years50.557.0
9 years52.562.0
10 years54.570.5
11 years56.781.5
12-13 years59 - 6291 - 101
14-15 years62 - 63105 - 115
16-17 years64118 - 120
18-20 years64125 - 128
Height is indicated in Inches and Weight is indicated in Pounds.

Things to Note
  • There is rapid weight gain in the initial six months, followed by a slow, yet steady increase in weight till the child is one years of age.
  • Once the child is one year old, an increase of three to six pounds is expected in a year, along with a total height gain of three to five inches.
  • Till the child is five years old, an additional five pounds of weight gain is expected.
  • A sudden growth spurt in children in the age group of ten to fifteen years can be seen. This leads to eight to twelve pounds of weight gain.
  • In children, along with a check of the height and weight, it is important to take the head circumference into consideration as well.
  • Genetics, environmental factors, diet, and ethnicity, play an important role in the height and weight ratio in children.

Weight Height Ratio For Adults

The height weight helps in understanding a person's health and well-being. Physicians have increasingly used these charts for gaging a person's healthy weight. Here is a weight and height chart for men as well as women, in the age group of eighteen to sixty years.

Ideal Weight for Men by Height
Body Frame
Height Weight Chart for Men
HeightSmall FrameMedium FrameLarge Frame
Ideal Weight for Women by Height
Body Frame
Height Weight Chart for Women
HeightSmall FrameMedium FrameLarge Frame
Weight indicated in the table is in Pounds

Age Weight Chart for American Men
Age20 - 29 yrs30 - 39 yrs40 - 49 yrs50 - 59 yrs60 - 69 yrs

Age Weight Chart for American Women
Age20 - 29 yrs30 - 39 yrs40 - 49 yrs50 - 59 yrs60 - 69 yrs

Things to Note
  • The weight and height ratio may vary based on the body structure, body type, and bone density of an adult.
  • Unlike children, there is no significant height gain in adults above eighteen years of age.

All About BMI

To estimate the right weight based on the height, a person should know the ideal body mass index. Also known as BMI, this value is calculated based on the height and weight of an individual. To know your BMI level, note down your your height in inches and weight in pounds. Now using the BMI formula, you can calculate if you are overweight, obese, underweight or normal.
[Weight in Pounds ÷ (Height in inches)2] × 703

BMI Categories:
<18.5 = Underweight
18.5 - 24.9 = Normal Weight
25 - 29.9 = Overweight
BMI of 30 or greater = Obesity

Things to Note
  • BMI is higher in athletes and slightly more in elderly people.
  • Age, sex, and ethnicity might affect the ratio as well.
  • The BMI does not take into consideration waist measurement or muscle mass, and hence, accuracy is doubtful.

Despite certain limitations, the BMI is a great way to check the proper height and weight of an individual. In case you are underweight, it is important to rethink your diet so that you include nutritious foods in it. On the other hand, obesity can signal an impending health danger, and hence, should be controlled with a strict diet and exercise regime. A sharp increase in weight can be due to certain health problems like thyroid diseases and diabetes. In case you notice such a rapid increase in weight, consult a doctor immediately.