Question 1

What is video bitrate?

Accepted Answer

Video bitrate is the amount of data processed per second of video, usually measured in megabits per second (Mbps). Higher bitrate means better quality but larger file size. Bitrate, resolution and frame rate together determine how a video looks and how big the file is.

Question 2

How is video file size calculated from bitrate?

Accepted Answer

File size = (total bitrate in bits per second × duration in seconds) ÷ 8. Total bitrate combines the video bitrate and audio bitrate. For example, 8 Mbps for 60 seconds produces about 60 MB. This calculator handles the conversion automatically.

Question 3

What bitrate should I use for 1080p?

Accepted Answer

For standard 1080p YouTube uploads, 8 Mbps is recommended for typical content and 12 Mbps for high-motion content. For streaming, Netflix-style 1080p often uses 5-8 Mbps. For 4K, YouTube recommends 35-45 Mbps. Use the presets in this tool as a starting point.

Question 4

Does this calculator upload my video?

Accepted Answer

No. This is a pure math calculator that runs entirely in your browser. No files or data are uploaded anywhere — you just enter numbers and get instant estimates.