Human body weight refers to a person's mass or weight. Body weight is measured in kilograms, a measure of mass, throughout the world, although in some countries such as the United States it is measured in pounds, or as in the United Kingdom, stones and pounds.

Excess or reduced body weight is regarded as an indicator of determining a person's health, with body volume measurement providing an extra dimension by calculating the distribution of body weight.

This height versus weight machine learning prediction app is only suitable for adult men and women. It isn't suitable for children or people under 18. It covers heights from 148cm (4ft 10in) to 193cm (6ft 4in). Normal, overweight and obese weight ranges are given, using metric or imperial units. Height and weight training data preprocessing is undertaken using Python. CreateML toolset is used to fit a model to training data. Height as a predictor feature is used with trained model to predict weight.