Find an aspect ratio and the exact height or width for a new size – no stretching.
🔒 Calculated in your browser.
How to use the aspect ratio calculator
- Enter the original width and height.
- Enter the new width or new height.
- Read the matching dimension.
Common ratios
16:9 for YouTube and HD video, 9:16 for Stories, Reels and TikTok, 1:1 and 4:5 for Instagram posts, 1.91:1 for link share images, 3:2 and 4:3 for photos.
Frequently asked questions
What is 1920 × 1080 as a ratio?
16:9.
How do I resize without distortion?
Keep the same ratio – enter the new width and use the height shown.
Can I resize the image here?
Use the Image Resizer for that.