Video
Calculator
AnalyzerVideo Bitrate Calculator
Calculate video bitrate or expected file size from duration in seconds or HH:MM:SS. Compare codecs, resolutions, and plan uploads without guesswork.
About Video Bitrate Calculator
This bitrate calculator helps editors and streamers plan exports or uploads by quickly converting between bitrate and file size. Input the video length along with either bitrate or file size and the tool works out the missing value. Add codec and resolution details to get a suggested bitrate range tailored to modern compression standards.
How is bitrate converted to file size?
The tool multiplies bitrate (in bits per second) by the total duration, then converts the result to bytes, megabytes, and gigabytes. It uses decimal units (1 MB = 1,000,000 bytes) which match most streaming and hosting calculators.
Why use HH:MM:SS format?
Writing duration as hours:minutes:seconds makes long videos easier to enter. You can still type total seconds if you prefer—both inputs produce the same result.
What does the codec selector change?
Each codec compresses differently. Selecting H.265/HEVC or AV1 lowers the suggested bitrate compared with H.264 because those codecs deliver similar quality at smaller bitrates.
Are the recommendations exact?
They are ballpark figures. Actual quality depends on the source, content complexity, frame rate, and encoder settings. Use the numbers as a starting point, then adjust after test renders.