Ad Space
Other Calculators
Video File Size Calculator
Estimate a video file's size from its bitrate and total duration.
Estimated file size
—
Estimated file size
—
Ad Space — 300×250
About the Video File Size Calculator
A video file's size is driven mainly by its bitrate (how much data is used per second of footage) and its total length. Higher bitrates preserve more detail but produce larger files.
Formula: File Size = (Bitrate in Mbps × 1,000,000 × Duration in Seconds) ÷ 8
Dividing by 8 converts from bits to bytes. This estimate applies to constant-bitrate encoding; variable-bitrate video can end up somewhat smaller or larger depending on scene complexity.
Ad Space