Site Statistics

110 million visits by 78 million visitors from virtually every country.


OCW is accessed by a broadly international population of educators and learners.

MIT OpenCourseWare averages 1 million visits each month; translations receive 500,000 more.

Visitors from all over the world use OpenCourseWare:


Our audience is divided among students, educators, and self-learners:



MIT OpenCourseWare is being successfully used for a wide range of purposes.

Use Scenario % of Use
Educators Improve personal knowledge 31%
Learn new teaching methods 23%
Incorporate OCW materials into a course 20%
Find reference material for my students 15%
Develop curriculum for my department or school 8%
Students Enhance personal knowledge 46%
Complement a current course 34%
Plan a course of study 16%
Explore areas outside my professional field 40%
Review basic concepts in my professional field 18%
Prepare for future course of study 18%
Keep current with developments in my field 17%
Complete a work-related project or task 4%


MIT OpenCourseWare has already had significant impact and visitors expect even greater impact in the future.

  • 80% of visitors rate OCW's impact as extremely positive or positive; 91% expect that level of future impact.
  • 96% of educators say the site has/will help improve courses.
  • 96% of visitors would recommend the site.


Learn more about MIT OpenCourseWare's impact

2009 Report summary (PDF)

2005 Report summary (PDF)

2005 Full evaluation report (PDF - 15MB)

Learn more about MIT OpenCourseWare's monthly statistics on publication, web traffic, and feedback.

Read the latest report



Report cover.

World Impact

Download our evaluation report (PDF - 15MB)


Mirror Sites

The OCW Mirror Site Program provides free copies of the OCW website to educational organizations with limited or prohibitively costly internet access.

Read more