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Video File Size Calculator
Quick answer
If bitrate is 5 Mbps and duration is 120 s, the video file size is 75 MB.
Enter your values
Mbps
s
Video File Size
75MB
The size this works out to, based on the dimensions or settings you entered.
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See how the result changes
Each table re-runs this calculator with one value changed and everything else left as it is.
Video File Size by bitrate
If bitrate goes from 5 Mbps to 7.5 Mbps, video file size changes from 75 MB to 112.5 MB (+50%).
| Bitrate | Video File Size |
|---|---|
| 2.5 Mbps | 37.5 MB |
| 3.75 Mbps | 56.25 MB |
| 5 Mbpsstart | 75 MB |
| 7.5 Mbps | 112.5 MB |
| 10 Mbps | 150 MB |
Video File Size by duration
If duration goes from 120 s to 180 s, video file size changes from 75 MB to 112.5 MB (+50%).
| Duration | Video File Size |
|---|---|
| 60 s | 37.5 MB |
| 90 s | 56.25 MB |
| 120 sstart | 75 MB |
| 180 s | 112.5 MB |
| 240 s | 150 MB |
DEVELOPER & NETWORKING GUIDE
A quick guide to Video File Size
Use it to get an accurate video file size in seconds — free, with no sign-up.
Instant results
See your video file size the moment you enter your numbers.
Free, no sign-up
Every calculator here is free to use, with no account required.
Accurate & transparent
The same standard formula runs on our server for every calculation.
How to Use the Video File Size Calculator
1
Enter Bitrate
Provide your bitrate, in Mbps.
2
Enter Duration
Provide your duration, in s.
3
View Your Results
Get your video file size instantly, calculated on our server.
What is Video File Size?
This developer & networking tool works out your video file size instantly, so you don't have to do the math by hand.
“One quick calculation, so you always know your video file size before you decide.”
What Affects Your Video File Size
Your video file size depends on the values below.
Bitrate
Changing your bitrate changes your video file size.
Duration
Changing your duration changes your video file size.
Example Result
Here's what you can expect from a video file size calculation:
- Bitrate
- 5 Mbps
- Duration
- 120 s
- Video File Size
- 75 MB
Frequently Asked Questions
- How does bitrate affect video file size?
- If bitrate goes from 5 Mbps to 7.5 Mbps, video file size changes from 75 MB to 112.5 MB (+50%).
- How does duration affect video file size?
- If duration goes from 120 s to 180 s, video file size changes from 75 MB to 112.5 MB (+50%).
- How to calculate video file size?
- Fill in bitrate and duration in the Video File Size Calculator above and your video file size is calculated instantly. Change any value to see how the result responds.
- What does an example video file size calculation look like?
- If bitrate is 5 Mbps and duration is 120 s, the video file size is 75 MB.
- Is this calculator free to use?
- Yes — every calculator on this site is completely free, with no sign-up or account required.
- How accurate is this calculator?
- It uses the standard formula and calculates on our server for every request, so results are precise for the values you enter.
- Is my data saved anywhere?
- No. Nothing you enter is stored or sent anywhere unless you choose to share a link with your values included.
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