Bandwidth Requirement Calculator
Sizes a connection for a number of people using it at once.
Bandwidth needed
— Mbit/s
Share sends a link that reopens these numbers. Copy details pastes the full breakdown as a list.
At peak, before headroom — Mbit/s
Data per 30 days —
The formula
needed = users × bandwidth per user × (1 + headroom) data = peak × average use × seconds in 30 days ÷ 8
Size for the busiest moment, not the average.
What to watch out for
Take the per-user figure from what they do. A video stream or a call has a steady rate you can look up in its settings.
Frequently Asked Questions
What does 25 users at 5 Mbit/s need?
125 Mbit/s at peak, or 162.5 Mbit/s with 30% headroom.