Video Bitrate and File Size Calculator
Calculate video file size, required bitrate, or recording duration from bitrate, audio, length, and storage capacity.
Last updated: August 2026
File-size comparison at this duration
Results are estimates. Variable bitrate, codec efficiency, resolution, frame rate, scene complexity, metadata, and encoder settings affect real file sizes. Bitrate predicts size more directly than resolution alone and does not guarantee a particular image quality.