Zoom video conferencing bandwidth requirements

Zoom Video Conferencing Bandwidth requirementsZoom Video Communications, Inc. (Zoom) launched their Zoom video conferencing software in 2013.

Zoom software saw a huge increase in the usage of their software in early 2020 during the covid-19 pandemic.

Video calling and conferencing in general has become an every day feature in our work and social lives.

In this article we simplify the internet bandwidth required to host, attend or participate in a Zoom audio and/or video conference or webinar.

You can use the broadband speed checker to check the speed of your current broadband internet connection to compare against the requirements detailed below.

The overall quality of your Zoom call also depends on the utilisation of your broadband connection. If your broadband is over utilised you will still have a poor experience irrespective of the connections upload/download speed rating.

Zoom bandwidth requirements for Audio only calls

  • A Zoom audio only (VoiP) call needs just 60-80kbps (0.06-0.08Mbps) download speed
  • A Zoom phone audio conversation needs between 60-100kbps (0.06-0.10Mbps) download speed

Most 3G, 4G and standard (10Mbps download) home and business broadband connections will support audio without any issues. Check the current upload and download speed of your broadband connection here.

Zoom bandwidth requirements for Attendees

Zoom attendees are view only participants and their view of the webinar is controlled by the host. They can interact with the host and the panelists through the Q&A and chat.

Zoom video quality automatically adjusts depending on the upload and download bandwidth/speed available on your internet connection.

1:1 Video QualityDownload SpeedUpload Speed
High Quality0.6Mbps0.6Mbps
HD Video (720p)1.2Mbps1.2Mbps
Full HD Video (1080p)1.8Mbps1.8Mbps
  • Screen sharing with no video thumbnail will require an additional 50-75kbps (0.05-0.075Mbps) download speed.
  • Screen sharing with video thumbnail will will require an additional 50-150kbps (0.05-0.15Mbps) download speed.

1:1 (also referred to as 1 to 1 or peer-to-peer) video conference is a session with just 2 people.

Zoom bandwidth requirements for Panelists

Panelists are full participants in a webinar who can view and send video, screen share, annotate, etc. You must be assigned panelist permissions by the webinar host.

The video quality will automatically adjust depending on your broadband internet connections bandwidth/speed to provide you the best experience. The tables below detail the minimum broadband speed required.

What broadband bandwidth (speed) do I need for 1 to 1 video conference?

Download is for receiving video to your device (PC, laptop, tablet, phone, etc) and upload is required for sending video stream from your device.

Video QualityDownload SpeedUpload Speed
High Quality0.6Mbps0.6Mbps
HD Video (720p)1.2Mbps1.2Mbps
Full HD Video (1080p)1.8Mbps1.8Mbps

What broadband bandwidth (speed) do I need for a group video conference?

Video QualityDownload SpeedUpload Speed
High Quality0.8Mbps0.8Mbps
HD Video (720p)1.5Mbps1.5Mbps
Full HD Video (1080p)2.5Mbps3.0Mbps
  • Screen sharing with no video thumbnail will need an extra 50-75kbps (0.05-0.075Mbps) upload/download
  • Screen sharing with video thumbnail will need an extra 50-150kbps (0.06-0.15Mbps) upload/download

More reading: Zoom System requirements for Windows, macOS, and Linux

How much bandwidth (speed) do I need from a mobile phone?

If you use Zoom from a phone, the bandwidth used will be automatically optimised to provide for the best experience based on your connection.

If the phone’s internet bandwidth speed is low, certain features will not be available or automatically scaled to a smaller screen.

How much data does Zoom use?

If your broadband internet package does not come with unlimited data, it may be useful to have an idea of the totally data a Zoom session will use.

The totally data consumption is dependant on factors such as the length of the call, video quality and other features that you may use in the call – such as screen sharing, breakout rooms, etc.

Zoom uses between 540MB – 1.7GB of data per hour for a one-on-one call and around 810MB – 2.4GB per hour for group meetings.

Mobile sessions use less data because Zoom optimises its bandwidth depending on your connections (i.e 3G, 45/LTE, 5G, etc).

How to troubleshoot Zoom wireless connection issue

If your zoom meeting sessions are continually dropping, getting disconnected, freezing or you have poor video or audio when connected to via WiFi, these troubleshooting steps may help you find the cause of these issues.

You can join a Zoom test call to check if your performance improves whilst going through the troubleshooting steps below.

5 Steps to troubleshoot zoom connections issues at home

If you are on your home broadband and experiencing connectivity issues, these steps will help isolate the cause of your Zoom call problems.

  1. Check the Zoom service status page to ensure that there are no outages.
    Zoom Service Status

    Zoom Service Status

    Also check Zoom status at Downdetector to see if other people in your area reporting similar problems.

  2. Check your broadband speed and refer to the minimum bandwidth requirements covered at the top of this article.
  3. Stand directly in-front of your broadband wireless router and retry the Zoom call. If performance improves, the issue is a coverage issue on your Wifi. You may need to reposition your wireless router, use a Wifi signal booster or check that there are no obstructions.
  4. If still no joy, connect your device directly to your broadband router using an ethernet cable. If the performance improves then the issue is with your Wifi set-up/connection.
  5. If you are connected to your office via VPN, disconnect and check if the call connectivity improves.

4 Steps to troubleshoot zoom connections issues at work

If you are at the office and connected your company’s  internal WiFi network, try the following:

  1. Switch to a wired connection to see if performance improves
  2. Switch to a different WiFi Access point/hotspot by wandering into a different area of the building and check if the connectivity improves. If connection improves, contact your IT department to check the WiFi Access point/hotspot closest to your desk.
  3. Check your broadband speed and refer to the minimum bandwidth requirements covered at the top of this article. Turn off group HD in your Account Management if your WiFI bandwidth is insufficient.
  4. Check if colleague(s) sitting in the same area, are having the same problem. If so, the issue may be the company internet connection. If your colleague does not experience the same issue, then the problem may be with your PC, laptop. In either case, contact your IT department.

Zoom Frequently Asked Questions

A Zoom background helps you display and image or background during a zoom meeting.  Zoom host a number of background images and videos that you can download to use.

Check out the link below to view and download Zoom background images:
View and download Zoom background images

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Breakout rooms are sub rooms that a meeting host can create to split up participants into groups.  You can split up a Zoom meeting into to up to 50 seperate breakout rooms.

How to use Zoom breakout rooms video tutorial:

Source: Zoom Meetings on YouTube

 

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