Free browser utility
Video Aspect Ratio Calculator
Enter source and target dimensions to compare fit, fill, crop and padding measurements.
✓ Local processing✓ No registration✓ No file upload
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Before
1920 × 1080 into 1080 × 1920
→
After
Fit: 1080 × 608; vertical padding: 1312 px
How to use Video Aspect Ratio Calculator
- Paste text or select local files in the tool area.
- Choose any options that match the source data.
- Run the conversion or repair and review the preview.
- Copy the result or download the generated file.
Privacy and local processing
This project performs processing, document generation or calculations in your browser. The page does not include an upload endpoint, analytics script or remote processing API call. Avoid pasting sensitive data into websites you do not control.
What this tool includes
- GCD ratio simplification
- fit and fill modes
- crop and padding results
Common uses
- video exports
- thumbnail sizing
- social platform adaptation
Practical tips
- Choose even pixel dimensions when required by a video encoder.
Frequently asked questions
Does Video Aspect Ratio Calculator upload my data?
No. The included tool runs locally in your browser and does not send the entered content to a processing server.
Can I use the result commercially?
The generated result is based on your own input. Review it for accuracy and any third-party rights before commercial use.