What is the difference between a consumer and a customer?

Generally, a consumer refers to individuals who buy for themselves or their family (hence the term 'consumerism' in Economics and politics), whereas a customer can alsomean the retailer or person who buys from the manufacturer, etc. for ultimate sale to others.

The one who buys the product is called a customer and the who uses the product is called a consumer.

-A customer is who buys the things but a consumer is the person who finally utilizes it.