Free planning tool
BigBlueButton capacity calculator
Turn a classroom profile into a conservative node estimate. This model is a planning aid—not a benchmark, guarantee or substitute for load testing.
How the estimate works
Concurrent use, not accounts. The model begins with people online at the same time and applies transparent media and headroom factors.
Webcams are weighted. Publishing and routing video makes a camera-heavy workshop materially different from an audio-first lecture.
Validate before launch. Client bandwidth, browser behaviour, recording and software configuration cannot be predicted by a web form.