✳ FREE CALCULATOR
Video file size calculator
Estimate the size of an exported video from its total bitrate and duration, including the audio track, before you spend time encoding it.
- Estimated file size
- 58.1 MB
- Total bitrate
- 8,128 kbps
- Audio share of the file
- 1.6%
- Per minute of footage
- 58.1 MB
Calculated as: size = (video kbps + audio kbps) × 1000 × seconds ÷ 8
What this assumes
- Assumes constant bitrate. Variable-bitrate encodes land near this figure but rarely on it.
- Container overhead (a few tenths of a percent) is not included.
- Sizes use binary units: 1 MB = 1024 KB.
Koldflux works these numbers out for you when it exports - the calculators exist because our own pipeline needed them first.
Automate this in Koldflux