Frequently Asked Questions
How do I convert bitrate to file size?
File size in megabytes equals bitrate in megabits per second times duration in seconds divided by 8, because there are 8 bits in a byte.
What is the difference between Mbps and MB?
Bitrate is measured in megabits per second; file size is in megabytes. The division by 8 in the formula converts bits to bytes.
Does the calculation include audio?
It models one combined bitrate. For separate audio and video streams, add the audio bitrate to the video bitrate before calculating.
Why is my exported file slightly larger?
Container overhead and variable-bitrate spikes add a small amount beyond the raw bitrate math, so the result is a close estimate.
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Estimates for informational purposes only.
Important Disclaimer: Estimates for informational purposes only.
This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.