Aspect Ratio Calculator
ImgKit
Calculate aspect ratio, resize dimensions while maintaining proportions. Perfect for images and video.Updated 2026-03-20
Resize by new width or height
Frequently Asked Questions
What is aspect ratio?
The proportional relationship between width and height. 16:9 is standard widescreen.
Common aspect ratios?
16:9 (video), 4:3 (old TV), 1:1 (Instagram square), 9:16 (TikTok/Reels).
Is this free?
Yes, completely free with no signup.
How to Use
- Click Download to save
- Preview result before saving
- Choose output format and quality
- Process more without refreshing
FAQ
What about transparent backgrounds?
PNG and WebP transparency is fully supported and preserved.
Is EXIF data preserved?
By default EXIF is stripped for privacy. Some tools offer an option to keep metadata.
Can I process multiple images?
Upload and process one at a time. Download each result before the next.
Will quality be affected?
Quality controls are available. Lossless operations preserve original quality fully.
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