YouTube video sizes per minute and per hour
| Quality | Typical bitrate | 1 minute | 10 minutes | 1 hour | Usual range (1 hour) |
|---|---|---|---|---|---|
| 144p | 250 kbps | 1.8 MB | 17.9 MB | 107.3 MB | 77.2 MB – 150.2 MB |
| 240p | 350 kbps | 2.5 MB | 25.0 MB | 150.2 MB | 107.3 MB – 214.6 MB |
| 360p | 550 kbps | 3.9 MB | 39.3 MB | 236.0 MB | 150.2 MB – 386.2 MB |
| 480p | 900 kbps | 6.4 MB | 64.4 MB | 386.2 MB | 257.5 MB – 643.7 MB |
| 720p (HD) | 1,700 kbps | 12.2 MB | 121.6 MB | 729.6 MB | 429.2 MB – 1.3 GB |
| 1080p (Full HD) | 3,000 kbps | 21.5 MB | 214.6 MB | 1.3 GB | 772.5 MB – 2.3 GB |
| 1440p (2K) | 6,500 kbps | 46.5 MB | 464.9 MB | 2.7 GB | 1.7 GB – 4.6 GB |
| 2160p (4K) | 14,000 kbps | 100.1 MB | 1.0 GB | 5.9 GB | 3.8 GB – 9.6 GB |
| MP3 320 kbps | 320 kbps | 2.3 MB | 22.9 MB | 137.3 MB | exact |
| MP3 128 kbps | 128 kbps | 937.5 KB | 9.2 MB | 54.9 MB | exact |
| M4A 128 kbps | 128 kbps | 937.5 KB | 9.2 MB | 54.9 MB | exact |
How the estimate works
A file's size is its bitrate multiplied by its length, divided by 8 (there are 8 bits in a byte). For example, a 10-minute 1080p video at about 3,000 kbps is 3,000,000 × 600 ÷ 8 = 225,000,000 bytes, which is 214.6 MB.
- The video figures are typical for YouTube videos as they are downloaded: 1080p and lower in H.264, 1440p and 4K in AV1, all with AAC sound.
- Fast motion, gaming and 60 fps videos need more data and sit near the top of the range; talks, slideshows and still images need less.
- MP3 and M4A files have a fixed bitrate, so the audio sizes are exact.
- Sizes are counted the way Windows and our downloader show them: 1 MB = 1,024 KB and 1 GB = 1,024 MB. Phones and Macs count 1 GB as 1,000 MB, so they show slightly larger numbers for the same file.
Frequently Asked Questions
How big is a 1-hour 1080p YouTube video?
About 1.3 GB, usually 772.5 MB – 2.3 GB. A 1-hour 720p video is about 729.6 MB and a 1-hour 4K video about 5.9 GB.
How many MB is a 4-minute song as an MP3?
At 320 kbps a 4-minute MP3 is 9.2 MB; at 128 kbps it is 3.7 MB. MP3 files have a fixed bitrate, so these sizes are exact.
How big is a 10-minute 4K YouTube video?
About 1.0 GB, usually 643.7 MB – 1.6 GB. The same video in 1080p is about 214.6 MB.
Why is my download a different size from the estimate?
The size depends on what is in the video. Fast motion, gaming and 60 fps videos need more data; talks, slideshows and still images need less. The calculator uses typical figures; paste the link into our downloader to see the real size of every quality before you download.
How much data does watching YouTube use?
About the same as the file size: an hour of 480p uses about 386.2 MB, an hour of 720p about 729.6 MB and an hour of 1080p about 1.3 GB.
Does the calculator send or upload anything?
No. The sizes are worked out in your browser from the length you enter; nothing is uploaded and no video is downloaded.