Image Utilities
Image Dimensions & Aspect Ratio Calculator
Reads pixel width and height, simplifies the ratio by the greatest common divisor, and scales one side in proportion.
How to use Image Dimensions & Ratio
- Choose an image.
- Enter a target width or height.
- Read the matching proportional dimension.
A practical example
1600 × 900 pixels is 16:9. A width of 800 pixels corresponds to a height of 450 pixels.
What to check before using the result
This calculates sizes; it does not resize or export image pixels. Pixel dimensions differ from printed size and DPI.
Local processing
Inputs are processed in this tab. The site and some engines still load network assets.
Inspect before sharing
Review the output and keep the original file. Large files may take longer to process.
No account needed
No account, API keys, or watermarks required.