When you save a video, the quality list can look like a row of random numbers: 360p, 720p, 1080p, sometimes 4K. In short, the number is the height of the picture in pixels, and a higher number means a sharper image and a bigger file. But resolution is only one part of quality. Frame rate and bitrate matter just as much, and knowing how the three work together helps you pick the right option every time.

What the "p" numbers mean

The number before the "p" is the vertical resolution, the count of pixel rows in each frame. The "p" stands for progressive scan, which means every frame is drawn in full rather than in alternating lines. For a standard horizontal 16:9 video, the common sizes are:

• 360p: 640 × 360 pixels. Fine for a small preview, soft on a modern phone screen.
• 480p: 854 × 480 pixels. Often called standard definition (SD). Acceptable on a phone, blurry on a laptop.
• 720p: 1280 × 720 pixels. The entry level of HD. Looks clean on most phones.
• 1080p: 1920 × 1080 pixels, also called Full HD. The sweet spot for phones, laptops and most TVs.
• 1440p: 2560 × 1440 pixels, sometimes called 2K or QHD.
• 4K (2160p): 3840 × 2160 pixels, four times the pixels of 1080p.

Vertical videos, the kind you see on TikTok or in Instagram Reels, simply turn these numbers on their side. A vertical 1080p clip is 1080 pixels wide and 1920 pixels tall, but it is still labeled 1080p because the shorter side is what the label usually describes.

Frame rate: how smooth the motion looks

Frame rate is the number of still images shown each second, measured in frames per second (fps). The most common values are:

• 24 fps: the traditional film look, slightly dreamy motion.
• 25 and 30 fps: standard for most phone recordings, vlogs and social clips.
• 50 and 60 fps: smoother motion, popular for sports, gaming and fast camera moves.

Frame rate is set when the video is recorded and uploaded. Saving a 30 fps clip will always give you 30 fps; no download option can add real frames that were never captured. A 60 fps video at the same resolution needs more data than a 30 fps one, so it is usually larger.

Bitrate: the number that decides real sharpness

Bitrate is the amount of data used to describe each second of video, usually measured in megabits per second (Mbps). Two videos can both be 1080p and look very different: one crisp, the other full of blocky smudges in dark scenes or during fast movement. The difference is almost always bitrate.

Bitrate also depends on the codec, the method used to compress the video. H.264 (also called AVC) is the most widely supported. H.265 (HEVC) and VP9 are newer and can reach similar quality at a noticeably lower bitrate, which keeps files smaller. Social platforms compress uploads heavily to save bandwidth, so a clip downloaded from them is usually smaller than the original file that came off the creator's camera.

How big are the files? Approximate sizes per minute

You can estimate file size with a simple rule: megabits per second multiplied by 7.5 gives megabytes per minute. The ranges below are approximate and assume common H.264 encoding with audio included. Real files vary with the codec, the frame rate and how much movement the scene contains. Social media clips tend to sit at the lower end.

• 360p: roughly 0.5–1 Mbps, about 4–8 MB per minute.
• 480p: roughly 1–2 Mbps, about 8–15 MB per minute.
• 720p: roughly 1.5–4 Mbps, about 11–30 MB per minute.
• 1080p: roughly 3–8 Mbps, about 22–60 MB per minute.
• 4K: roughly 15–40 Mbps, about 110–300 MB per minute.
• MP3 audio only: about 1 MB per minute at 128 kbps and about 2.4 MB per minute at 320 kbps.

So a three-minute 1080p clip will usually land somewhere between 60 and 180 MB, while the same clip at 480p might be only 25–45 MB.

Why you only see certain qualities

A downloader can only offer the versions that the platform actually stores. If someone uploaded a video in 720p, there is no true 1080p version anywhere, so it will not appear in the list. VidGrabo shows the qualities that the original upload provides and never upscales. That is deliberate: stretching a 720p picture to 1080p would make the file bigger without adding any detail, because the missing pixels would just be guessed from their neighbors.

The same goes for the source itself. A video recorded in low light on an old phone will look soft even at 1080p. Resolution is a ceiling, not a guarantee.

Which quality should you choose?

For watching on a phone

720p or 1080p is ideal. On a six-inch screen held at arm's length, most people cannot see a clear difference between 1080p and anything higher, and the file stays manageable.

For a TV or large monitor

Pick the highest quality offered, ideally 1080p or above. Flaws that hide on a phone become obvious on a 50-inch screen, especially in dark or fast-moving scenes.

For editing your own clips

Always take the highest resolution available. Every edit and export compresses the video again, so starting from the best copy leaves room for cropping, zooming and color changes without the result falling apart.

For saving storage and mobile data

480p or 720p is usually enough for tutorials, talks and anything where the picture is less important than what is said. If you only need the sound, the MP3 option is the smallest choice of all. Our guide to saving storage and data when downloading videos covers more ways to keep files small.

How to pick a quality with VidGrabo

1. Copy the link of a public video from TikTok, Instagram, Facebook, X (Twitter) or Pinterest.
2. Open VidGrabo in your browser, on a phone or a computer, and paste the link.
3. Look at the list of qualities that appears. These are the versions the original upload provides.
4. Tap the quality you want, or choose MP3 if you only need the audio. The file downloads straight to your device.

There is no sign-up and nothing to install. Only download videos you made yourself or have permission to use, and do not re-upload other people's work. Our copyright page explains this in more detail.

Frequently asked questions

Is 4K always better than 1080p?

Only if the original was recorded and uploaded in 4K and you watch it on a screen large enough to show the difference. On a phone, a good 1080p file usually looks the same and takes a fraction of the space.

Why does my 1080p download look blurry?

The most likely reasons are a low bitrate from the platform's compression, a poorly lit or shaky original recording, or a clip that was itself re-uploaded from a lower-quality copy. Resolution alone cannot fix any of these.

Does a higher frame rate make the file much larger?

A 60 fps video generally needs more data than a 30 fps video at the same resolution, though modern codecs keep the increase well below double. Expect a noticeably larger file rather than an exact multiple.

Can I turn a 720p video into 1080p?

You can stretch it, but you cannot add detail that was never captured. Upscaling makes the file bigger without making it sharper, which is why VidGrabo only offers the qualities the original upload provides.

Conclusion

Resolution tells you the size of the picture, frame rate tells you how smooth it moves, and bitrate tells you how much detail actually survives compression. For most people, 720p or 1080p on a phone, the highest option on a TV, and MP3 when only the sound matters will cover nearly every situation. If you are unsure which file type you will end up with, read our explainer on MP4, WebM and MP3 formats. When you are ready, paste a public video link on the VidGrabo home page and pick the quality that fits your screen.