Video filesize calculator

Use a specific bitrate instead of the example above

File size for 1 frame

Pixel count
W x H = 1920 x 1080
2.07 Mpixels
Uncompressed
1920 x 1080 x 24 bit (RGB)
6.22 MB/frame
Youtube HD
1080p25 = 8 Mbps
19.29 KB/megapixel x 2.07 Mpixels
40 KB/frame

File size for 1 second

Youtube HD
1080p25 = 8 Mbps
462.96 KB/megapixel-sec x 2.07 Mpixels
959.99 KB/sec

Total video file size

Frames
60 seconds x 24 fps
1,440 frames
File size
60 seconds x 959.99 KB/sec
57.6 MB

Examples

Frequently Asked Questions

How do I calculate video file size?

Size = Bitrate × Duration. A 10 Mbps video for 60 seconds = 10 × 60 = 600 Megabits = 75 MB. For pixel-based calculation: Width × Height × Bits-per-pixel × Framerate × Duration ÷ 8 ÷ Compression-ratio.

What bitrate should I use for YouTube uploads?

YouTube recommends: 1080p = 8-12 Mbps, 4K = 35-68 Mbps, 1080p60 = 12 Mbps, 4K60 = 53-85 Mbps. Use H.264 or H.265 codec. Higher bitrates = larger files but better quality after YouTube re-encodes.

How big is a 4K video file?

Varies by codec: YouTube 4K (45 Mbps) = 337 MB/min. Netflix 4K (15 Mbps) = 112 MB/min. ProRes 4K (1 Gbps) = 7.5 GB/min. DCP 4K cinema (250 Mbps) = 1.9 GB/min. Raw 4K can exceed 10 GB/min.

What is the difference between bitrate and quality?

Bitrate is data per second; quality depends on codec efficiency. H.265 achieves similar quality to H.264 at half the bitrate. ProRes prioritizes editing speed over compression. For streaming, modern codecs like AV1 offer best quality-per-bit.