Required network bandwidth for Zoom App (updated)

The bandwidth used by Zoom is optimized for the best experience based on the participant’s network. The bandwidth is automatically adjusted according to 3G or WiFi.

The required network bandwidth is as follows.

devices such as iOS and Android

PC terminals such as Windows, Mac, Linux
Recommended bandwidth when using WiFi Bandwidth recommended for meeting and webinar panelists Recommended bandwidth for webinar participants
One-to-one video call
 High-quality video 600kbps
 HD video 1.2Mbps
Group video
 High-quality video 600kbps/1.2Mbps
600kbps (down)
 Gallery view/720p HD 1.5Mbps/1.5Mbps
HD video 1.2 Mbps (down)
Screen sharing
 Screen sharing only
(no video thumbnail)
50-75kbps (down)
 Screen sharing
(with video thumbnails)
50-150kbps (down)
 Audio VoIP 60-80kbps
60-80kbps (down)

Tips for improving call quality in a zoom

Because video calls use more bandwidth than voice calls, if you have problems with video call quality, try the following:

  • Quit other applications that use the Internet, especially those that play music and videos.
  • Cancel an ongoing file transfer.

The most up-to-date information, IOS and Android of system requirements and the PC, Mac, Linux system requirements.

Frequently Asked Questions


Reducing Zoom Data and Bandwidth Use
  1. When you are not using video, turn it off.
  2. Video in HD should be turned off.
  3. Only share your screen for as long as necessary when you screen share.
  4. Instead of screen sharing, create collaborative documents online.
  5. When not speaking, muffle your audio.
  6. Zoom meetings can be recorded in the cloud.


You can also try to manually reduce the amount of bandwidth that is required to run Zoom Meetings if you are experiencing poor performance due to bandwidth congestion. Try this: Disabling HD video: Simply go to Settings, click on the Video tab, and uncheck the HD video checkbox to disable HD video.
What is the data usage of Zoom? The average amount of data used by Zoom per hour is 888 MB. One-on-one video calls on Zoom take up 540 MB to 1.62 GB per hour, while group video calls consume 810 MB to 2.475 GB per hour. An hour-long voice call uses 27 to 36 MB of bandwidth.
  1. Make sure you have a good Internet connection.
  2. Check your router if you use WiFi.
  3. When you are not speaking, muffle your microphone.
  4. When you’re not using your webcam, turn it off.
  5. Video from HD webcams should be disabled.


Close the Settings window after unchecking “Enable HD.”
    1. Make sure your computer is free of unnecessary applications.
    2. Don’t engage in other activities that will consume bandwidth.
    3. Your Zoom meeting instructor or moderator should be contacted.