Unlock the Future of Learning: Discover the 17 Online Course Platforms Set to Dominate 2025
How long should an online course be?
There are no hard-and-fast rules about how long an online course should be—it depends on the topic.
However, as a general rule of thumb, I’d suggest aiming for 10-25 hours in total in most cases. That said, shorter courses can be as little as 5-10 hours, and very long courses can be as much as 25-100 hours or more.
But remember that most people have short attention spans, so your course should be broken up into several sections or modules, and each module should be further broken up into individual lessons. Each lesson should take no longer than 15 minutes to 1 hour to complete.