Video File Size Calculator
Estimate the size of a video file from its bitrate and duration, which helps when planning storage, uploads and streaming costs. Enter bitrate and…
8 of 8 free uses remaining today
Estimate the size of a video file from its bitrate and duration, which helps when planning storage, uploads and streaming costs. Enter bitrate and duration to see file size when you calculate.
Worked example
Example calculated from the starting values. Enter your own values and press Calculate to get your result.
With the default inputs (bitrate = 8 Mbps, duration = 1 hours), the results are: file size 3.60 GB.
Quick reference: bitrate vs result
Reference table based on the example values; it is not your calculation result.
| Bitrate (Mbps) | File size |
|---|---|
| 4 | 1.80 GB |
| 8 | 3.60 GB |
| 16 | 7.20 GB |
| 40 | 18.00 GB |
| 80 | 36.00 GB |
| 160 | 72.00 GB |
Frequently asked questions
What formula does this calculator use?
File size = br × 3600 × h ÷ 8 ÷ 1000. Variables: br = bitrate in Mbps, h = duration in hours.
What do I need to enter?
You need bitrate (Mbps), duration (hours). Results update as you type.
What is an example result?
With the default inputs (bitrate = 8 Mbps, duration = 1 hours), the results are: file size 3.60 GB.
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