You search for the WhatsApp video size limit and get three different answers on the first page of results. One says 16 MB, another says 100 MB, a third says 2 GB. Two of those are wrong for your situation, and picking the wrong one wastes an afternoon compressing a file that never needed it.
What Is the WhatsApp Video Size Limit, Exactly?
There are two limits, not one, and which applies depends on how you attach the file.
Send a video through the photo and video button and it travels the media path, which has a small ceiling. Attach the identical file through the document option and it travels the document path, which allows something far larger.
WhatsApp publishes both figures itself. The media ceiling is documented in their help centre, and the document ceiling was raised on their own blog in July 2022. We link both rather than quoting numbers here, because these have moved once already and this article should not become the next stale source.
The honest caveat: published limits and real behaviour drift apart at the edges. A file just under the ceiling on a weak connection can still fail, which people reasonably misread as a size problem.
Where the 100 MB Figure Came From
It was the document ceiling before July 2022. That is the whole story.
The number was accurate for years, got written into hundreds of articles, and then stopped being true overnight. Nobody went back to update their posts. So a figure with a clear expiry date is still being quoted as current in 2026.
We flag this because it tells you something useful about the whole category. Any page giving you a hard number without a date or a source is repeating what it read somewhere else. Check when it was written.
How Big Can a WhatsApp Video Be Before It Gets Compressed?
Anything over the media ceiling gets re-encoded. Anything under it should pass through untouched.
That threshold is the entire game. Getting your file under it in one clean pass means WhatsApp leaves it alone, and the clip your friend watches is the clip you made. Going over means the app compresses it with settings tuned for slow connections rather than for how your footage looks.
Worth knowing: the compression happens on your phone before anything is uploaded. It is a local step, not something their servers do to you, which is exactly why it is avoidable. We cover the mechanism in why WhatsApp re-encodes what you send.
If your file is close to the line, the get a clip under the limit tool reports whether the result actually fits rather than leaving you to guess.
Why Runtime Is a Terrible Guide to File Size
People assume a minute of video is a minute of video. It is not, and the gap is enormous.
Resolution, frame rate and motion all multiply. A recent phone shooting 4K at 60 frames a second produces several times the data of an older handset at 1080p over the same runtime. Add camera shake and the encoder has nothing to reuse between frames, which inflates it further.
This is why a 15-second clip sometimes exceeds a limit that a two-minute clip cleared comfortably. Check the actual file size before assuming anything from the duration.
One practical consequence: lowering your camera to 1080p is the cheapest fix available, and nobody suggests it because it is not a product. If you regularly send video on WhatsApp, that single setting change saves you compressing anything.
Does the Document Size Limit Solve Everything?
For quality, yes. For convenience, not always.
The document path skips compression entirely and allows a much larger file, so your original arrives intact. That is the right answer for footage that matters — an event, something someone needs to edit, work you are being paid for.
The trade is real though. It arrives as a file to tap rather than a video that plays inline, and plenty of people simply will not open it. We have watched relatives ignore a document for a week and then ask why nobody sent them the video. Judge the recipient as carefully as the file.
The full walkthrough for both phones sits in sending it another way.
When the Send Fails and Size Is Not the Reason
Size gets blamed for failures it had nothing to do with.
Variable frame rate from a screen recorder trips the app at any size. Unusual containers like MKV get refused outright on some builds. A patchy connection fails the upload halfway and reports something vague. All three look identical from the outside: the video will not send.
Re-encoding fixes the first two as a side effect, which is why compressing sometimes appears to fix a file that was never too big in the first place. When the send fails outright works through each cause in order.
The Short Version
The WhatsApp video size limit is two limits: a small one for media, a much larger one for documents. Check your file size first, then decide which path you want.
If the file is close to the media ceiling, compress once and stop as soon as it fits. If it is far over, use the document path or trim it down rather than crushing the picture to reach a number.
And when the destination is Status rather than a chat, the rules change again — Status has its own limits, including a length cap that has been revised more than once.