The volume of data included in a mobile plan is a determining factor for users, especially those who regularly connect without Wi-Fi. If you have 20 GB of mobile internet, it is legitimate to wonder how many hours of browsing this represents. But be careful: the connection duration strongly depends on how you use your data. Here is a complete breakdown to better understand.
Classic web browsing: low consumption
For consulting websites, reading articles, or browsing social networks without video, consumption remains relatively moderate. On average, basic browsing uses about 150 to 200 MB per hour. This means that with 20 GB, you can browse between 100 and 130 hours, or even a little more if you disable automatic image loading.
Light applications like WhatsApp, Messenger, or checking your emails (without attachments) only weigh a few megabytes per hour. Thus, for messaging and news-oriented use, the 20 GB is largely sufficient for several weeks.
Video streaming: the biggest data consumer
It is in video that data consumption increases the fastest. Depending on the chosen quality, 1 hour of streaming can use between 300 MB and 3 GB:
- Standard quality (480p): 500 to 700 MB per hour
- HD quality (720p): 1 to 1.5 GB per hour
- Full HD (1080p): 2 to 3 GB per hour
For example, if you watch videos in HD, you could consume your 20 GB in about 13 to 15 hours. To optimize your plan, it is therefore advisable to favor 480p on mobile, sufficient for small screens and two to three times less demanding.
Video calls: moderate use but to be monitored
Video calls via applications like Zoom, WhatsApp, Google Meet, or Teams can consume between 400 MB and 1.2 GB per hour, depending on video quality, the number of participants, and network conditions.
With 20 GB, you can last between 16 and 40 hours in video calls. If you regularly telework on 4G, it is therefore important to limit the number of video calls or make them on Wi-Fi to preserve your quota.
Online music: relatively little data
For music streaming (Spotify, Deezer, Apple Music, etc.), consumption is reasonable. Listening in normal quality uses about 40 to 80 MB per hour. Thus, with 20 GB, you can listen to music online for more than 250 hours, or several weeks of continuous listening.
Platforms often allow you to adjust audio quality, which is useful for saving even more mobile data.
Downloads and updates: beware of large files
Downloading applications, software updates, or automatic installations (especially on Android or iOS) can consume several hundred MB in a few minutes. For example, a mobile game or a system update can exceed 1 GB.
If your plan is limited to 20 GB per month, it is preferable to disable automatic updates on 4G or allow them only on Wi-Fi.
Summary by type of use
| Activity | Average consumption per hour | Duration with 20 GB |
| Simple browsing | 150 to 200 MB | 100 to 130 hours |
| Video in 480p | 500 to 700 MB | 25 to 40 hours |
| Video in HD | 1 to 1.5 GB | 13 to 20 hours |
| Video calls | 400 MB to 1.2 GB | 16 to 40 hours |
| Music streaming | 50 to 80 MB | 250 to 400 hours |
How to better manage your 20 GB of data?
To optimize the duration of your plan, a few habits can make a difference:
- Reduce video quality in app settings.
- Download your content (music, podcasts, videos) on Wi-Fi to listen offline.
- Disable automatic updates via the mobile network.
- Monitor your consumption with a dedicated app or your phone settings.
