In an effort to help eliminate the “Paper Weight” confusion problem, we have compiled the comprehensive table listed below. Now you can compare various types of paper and their “Equivalent Weights.”

While every attempt has been made to insure the accuracy of the information provided on this web page, no guarantee can be offered or implied. Print Design has compiled this information from a number of sources and cannot be held liable for errors and/or omissions.

Definitions:

Basis Weight
The basis weight of a paper is the designated fixed weight of 500 sheets, measured in pounds, in that paper’s basic sheet size. It is important to note that the “basic sheet size” is not the same for all types of paper.

Caliper
Caliper refers to the thickness of a sheet of paper expressed in thousandth of an inch. This measurement is taken with a micro meter. Normally, paper caliper should not have more than a + or – 5% variance within a sheet. Generally, the relation between caliper and basis weight …. the greater the caliper (the thicker the paper), the greater the paper weight.

Equivalent Weight
While different paper types have different basic sizes, papers can still be compared by using equivalent weight.

Basis Weight ("Category") Table

Paper Type Basic Size – 500 Sheets
“Bond”
Ledger
Mimeo
Duplicator
17″ x 22″
“Offset”
Book
Text
Coated Paper
25″ x 38″
“Cover” 20″ x 26″
“Tag Stock” 24″ x 36″