How to use this calculator
- Choose whether to calculate bitrate or file size.
- Enter the known values and duration.
- Read the estimate and reserve part of the total bitrate for audio if needed.
Example
A 2 GB file lasting 2 hours allows about 2.22 Mbps total bitrate using decimal storage units.
How it works
Calculate video bitrate from file size and duration, or estimate file size from bitrate and duration. Inputs are calculated directly in your browser and the result updates whenever a value changes.
Frequently asked questions
Does total bitrate include audio?
Yes. Subtract the planned audio bitrate to find the available video bitrate.
Why can the final file differ?
Variable bitrate encoders, container overhead and decimal versus binary units can shift the result slightly.