Random Date Generator

Generate random dates for any calendar year using this calculator produced by Library Research Service.

Wage Calculator

Convert an hourly wage to monthly or annual or vice versa. Fill in the rate and we’ll do the rest!

Multiple Outlet Hours Calculator

Enter a library’s hours and calculate how long the library is open each week, year, and on evenings and weekends.

DART Reference Tracker

Tired of tracking reference stats by hand? Try DART, a web app developed & maintained by LRS and tailored to your library’s needs.


  • Public Library Statistics & Profiles
    Dive into annual statistics from the Colorado Public Library Annual Report using our interactive tool, results tailored to trustees, and state totals and averages.
  • School Library Impact Studies
    School libraries have a profound impact on student achievement. Explore studies about this topic by LRS and other researchers in our comprehensive guide.
  • Fast Fact Reports
    Looking for a quick rundown of library research? Check out our Fast Facts, which highlight research and statistics about various library topics.


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LRS is part of the Colorado State Library, a unit of the Colorado Department of Education. We design and conduct library research for library and education professionals, public officials, and the media to inform practices and assessment needs.

This project is made possible by a grant from the U.S. Institute of Museum and Library Services (IMLS).

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