This presentation will be an overview of the Interlibrary Loan Cost Calculator [http://oclc.org/research/activities/interlibrary-cost-calculator.html] currently under development by OCLC Research in collaboration with staff from OCLC Research Library Partnership institutions.  The web-based cost calculator will allow users to enter data about their resource sharing activities in order to learn their own unit costs and compare them with other institutions' resource sharing costs.

• The goals of the Interlibrary Loan Cost Calculator
• Categories of data that users can gather and enter into the calculator
• Views of the calculator's current web interface