On the basis of Human Development Index, the world can be classified into 3 main parts: 

1. High human development category 

2. Medium human development category 

3. Low human development category.

1. High Human Development Category: The score of human development is found more than 0.71 in this category. 94 countries of the world are included in this category. According to HD1 report 2015- 16, Norway stands at the top position with score of 0.955, Australia 0.938 (second), USA 0.937 (third) and Germany 0.920 (fourth). In this category, Singapore, Hong Kong, Korea, Chile, UAE are included.

2. Medium Human Development Category: The score of human development index of the countries included in this category is between 0.50 to 0.70. The countries like China, Thailand, Philippines, India, Indonesia, Pakistan, Bangladesh have medium human development Index. There are 47 countries in this category.

3. Low Human Development Category: In this category, the score of human development index is less than 0.50. There are 35 countries which have low HDI score. Some of these countries are Kongo, Chad, Myanmar, Rwanda, Sudan, Ethiopia, Afghanistan, Guinea, Niger, Nepal, Zambia, etc.