what is a ream of copy paper

A ream of copy paper is a standard quantity of paper that usually contains 500 sheets per package. The size of each sheet is typically 8.5 x 11 inches. This paper is designed for multipurpose, everyday use and works with laser and inkjet printers, copiers, and fax machines. A ream of copy paper is the most common way to purchase paper for home or office use, and it is more cost-effective than buying paper by the case. Other types of paper, such as cover and index paper, may include more or less than 500 sheets per ream.