ContentDown tool
Video file-size estimator
Estimate an approximate file size from duration and total bitrate.
Estimated size150.0 MB
Approximation before container overhead and bitrate variation.
Why this is an estimate
Bitrate can vary throughout a file, and containers add a small amount of overhead. The calculator uses duration × total bitrate ÷ 8, making it useful for planning storage or transfer size rather than forensic measurement.