According to Zoom’s website, these are the internet bandwidth requirements for different kinds of Zoom calls.
For 1:1 video calling:
- 600kbps (up/down) for high quality video
- 1.2 Mbps (up/down) for 720p HD video
- Receiving 1080p HD video requires 1.8 Mbps (up/down)
- Sending 1080p HD video requires 1.8 Mbps (up/down)
For group video calling:
- 800kbps/1.0Mbps (up/down) for high quality video
- For gallery view and/or 720p HD video: 1.5Mbps/1.5Mbps (up/down)
- Receiving 1080p HD video requires 2.5mbps (up/down)
- Sending 1080p HD video requires 3.0 Mbps (up/down)
For screen sharing only (no video thumbnail): 50–75kbps
- For screen sharing with video thumbnail: 50–150kbps
- For audio VoiP: 60–80kbps
For Zoom Phone: 60–100kbps
Just for reference, here’s how data measurements break down:
- 1 megabit (MB) = 1000 kilobytes (Kb)
- 1 megabyte (MB) = 8 megabits (Mb)
- 1 gigabyte (GB) = 1,000 megabytes (MB)
We’ll spare you the math and give you an idea of how much data Zoom uses per hour and per minute, rather than a per-second basis. I don’t know about you, but my Zoom conversations rarely last only a few seconds (though it would be nice if they did sometimes).
On a 1:1 Zoom meeting, expect to use between 540 MB and 1.62 GB per hour, or somewhere between 9 MB and 27 MB per minute. To put those numbers in internet-speed terms, you’d want an internet speed between 150 kbps to 450 kbps to smoothly run a Zoom 1:1 call.
Wait, that’s not much internet speed at all. It’s true that the internet and Wi-Fi speed needed for a Zoom 1:1 on its own doesn’t need a ton to run well, but keep in mind that your internet speed doesn’t just dedicate itself to Zoom calls. Your internet bandwidth has to allocate internet to all of your devices at once.
If you're still in the dark, here's an easy guide on how much internet speed you need for different household sizes and activities.
The bigger the Zoom meeting, the more data it uses. For every hour of a Zoom group call, you use between 810 MB and 2.4 GB, or somewhere between 13.5 MB and 40 MB per minute. You’ll need an internet connection of at least between 225 kbps and 670 kbps dedicated to the Zoom call.
Keeping in mind that your internet bandwidth goes to all of your internet devices at the same time, here are some examples of other common data usages that probably are happening at your home.
(Need a refresher on Mbps? No worries! Check out our guide to Mbps that explains what it means and how all those Mbps add up to your internet speed.)