Video Frame Size Calculator — Pixels, Megapixels & Frame Bytes
Enter the video resolution (width × height), color depth and frame rate to instantly see the uncompressed size of each frame in bytes, the total megapixels, aspect ratio, and the raw data rate — useful for choosing storage, buffers and capture cards.
px
px
Color depth
fps
Raw bytes per frame before any compression
- 1
Total pixels
1,920 × 1,080 = 2,073,600 - 2
Frame size (bytes)
2,073,600 × 24 ÷ 8 = 6,220,800 - 3
Frame size (MB)
6,220,800 ÷ 1 048 576 = 5.9331 MB = 1 024 × 1 024 = 1 048 576 bytes.
How does this calculator work?
An uncompressed video frame occupies width × height × (bpp / 8) bytes. A 1920×1080 24-bit frame is ~5.93 MB; at 30 fps the raw data rate is ~1 422 Mbit/s. Real codecs compress this by 20–1 000×. Use this calculator to size capture buffers and compare resolutions.
Formula
How this is calculated
An uncompressed video frame stores one sample for every pixel. The size in bytes = width × height × (bits-per-pixel / 8). For standard 24-bit RGB each pixel occupies 3 bytes (8 bits per red, green and blue channel), so a 1920 × 1080 frame is 1920 × 1080 × 3 = 6,220,800 bytes ≈ 5.93 MB. 32-bit RGBA adds an 8-bit alpha (transparency) channel, and 48-bit deep color uses 16 bits per channel.
Multiplying the per-frame size by the frame rate gives the uncompressed data rate in MB/s or Mbit/s. A 4K (3840 × 2160) 24-bit 30 fps stream requires about 710 MB/s of bandwidth — far beyond practical storage speeds, which is why video codecs (H.264, H.265, AV1, ProRes, DNxHR) compress frames by factors of 20 to 1 000 before recording.
This calculator shows the uncompressed figures, which are useful for: estimating memory buffer sizes in camera sensors and capture cards, understanding the ceiling on bitrate that a codec could theoretically produce, comparing the theoretical information content of different resolutions, and verifying aspect ratios (e.g. 1920:1080 = 16:9).
Frequently asked questions
Frame size is the raw, uncompressed bytes of one image. File size is the total storage for the entire video after compression. A 5-minute 1080p 30fps video has 9,000 frames × 5.93 MB = 53 GB uncompressed but only 500 MB–2 GB as a compressed MP4, depending on the codec and quality setting.
24-bit RGB (8 bits per channel) is standard for web and consumer video. 32-bit RGBA adds an alpha channel for compositing. 16-bit RAW or 48-bit deep color is used in professional cinema cameras for grading headroom. Most playback and streaming uses 8 bits per channel.
The GCD of 1920 and 1080 is 120, so 1920/120 × 1080/120 = 16:9 — the standard widescreen ratio. The calculator divides both dimensions by their GCD to display the simplified aspect ratio.
Also known as
TG we-Calculate Editorial Team. (2026). Video Frame Size Calculator — Pixels, Megapixels & Frame Bytes [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/video-frame-size-calculator
TG we-Calculate Editorial Team. "Video Frame Size Calculator — Pixels, Megapixels & Frame Bytes." TG we-Calculate. 2026. https://we-calculate.com/calculator/video-frame-size-calculator.
TG we-Calculate Editorial Team, "Video Frame Size Calculator — Pixels, Megapixels & Frame Bytes," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/video-frame-size-calculator
@misc{wecalculate_video_frame_size_calculator, title = {Video Frame Size Calculator — Pixels, Megapixels & Frame Bytes}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/video-frame-size-calculator}}, year = {2026}, note = {TG we-Calculate} }
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