Free Video Bitrate Calculator
Calculate ideal video bitrates and file size estimates. No registration, runs 100% locally in your browser.
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How Video Bitrate Calculator Works
Enter your total video duration (in minutes or seconds).
Select your target target file size (e.g. 50MB for email, 500MB) or specify custom bitrates.
Get estimated target parameters to configure inside your compressor/encoder.
Frequently Asked Questions
File size is a direct product of bitrate × duration. The formula simplifies this: Bitrate = (Target Size in Bits) / Duration in Seconds.
We provide recommended bitrate benchmarks for H.264, H.265 (HEVC), AV1, and ProRes based on standard 1080p, 4K, and 60fps formats.
Yes, you can specify standard audio bitrates (e.g. 128kbps, 256kbps) to deduct them from the video bandwidth budget automatically.
Calculations provide mathematical averages (Constant Bitrate / CBR). Variable Bitrate (VBR) compression may yield slightly smaller or larger files depending on frame complexity.
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