When you need 16.00 MB
Compressing yourself keeps the quality choice in your hands: you decide what to lose, rather than WhatsApp. The 16 MB figure is the long-standing one; WhatsApp does not publish it on its help pages.
What to expect
About a minute of video fits at 480p. Thirty seconds stays at 720p.
How much video fits in 16 MB
Worked out with the same maths the compressor uses, for a typical 1080p phone or screen clip with sound. Fast motion needs more room, still scenes and screen recordings need less.
| Clip length | Resolution we pick | How it looks |
|---|---|---|
| 10 seconds | 1080p | Sharp |
| 30 seconds | 1080p | Sharp |
| 1 minute | 720p | Sharp |
| 2 minutes | 540p | Good on a phone |
| 5 minutes | 270p | Watchable, small |
| 10 minutes | 240p | Watchable, small |
How we hit the number
We work out how many bits each second of video can use: the target size, minus a safety margin, divided by the length, minus the audio. Then we pick the largest resolution that still looks clean at that rate and encode with your browser's built-in video encoder. If the result is still over, we automatically try once more at a lower rate.
The target we aim for is 15.52 MB, which is 480 KB under 16.00 MB, so the file is not turned away over a few bytes.
Questions people ask
Can I send a 2 GB video?
Only as a document. It arrives as a file, not a playable message. Shrinking it to 16 MB sends it as a normal video.
Will WhatsApp recompress my 16 MB file again?
Files already under the limit are usually passed through with little change, which is the point of doing it yourself first.
Related
- Send a long video on WhatsApp without it being butcheredDestination guide
- Compress a video to 16 MBVideo size
- Video too big for a text message? Shrink it to 1 MBVideo size
Limits change. We link the official page wherever there is one, and the safety margin means a small change is unlikely to matter. Last updated 2026-11-09.