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1:1 Aspect Ratio Calculator
A square frame where width and height are equal, useful for avatars, thumbnails, product tiles and square social graphics. Enter a width or height to calculate the matching dimension, or choose a common pixel size below.
Square · exact proportion
Calculate 1:1 dimensions
Change either field. The other dimension updates immediately to preserve the selected ratio.
Load a common size
Common 1:1 dimensions
These sizes preserve an exact 1:1 proportion. Select any row to load it into the calculator.
| Dimensions | Common label / use | Action |
|---|---|---|
| 256 × 256 | Small square | |
| 512 × 512 | Medium square | |
| 1080 × 1080 | Social square | |
| 2000 × 2000 | High-resolution square |
What does 1:1 mean?
An aspect ratio describes the relationship between width and height, not the number of pixels. A smaller and a larger image can have the same ratio when their dimensions scale proportionally.
Formula: height = width × 1 ÷ 1. For a known height, width = height × 1 ÷ 1. Keep both dimensions in the same unit.
Where 1:1 is useful
- Square profile images and avatars
- Product thumbnails and catalogue tiles
- Square social posts and creative assets
- Icons or image slots that require equal dimensions
Ratio versus resolution
The ratio describes shape; resolution describes pixel dimensions. A frame can be the right shape but too small for your intended use. Conversely, a high-resolution image can still need cropping if its shape does not match the target.
Resizing without distortion
Scale width and height by the same factor to preserve the source ratio. If the source ratio differs from 1:1, choose between cropping to fill the frame or fitting the whole image with possible empty space. Do not stretch the image unevenly.
Frequently asked questions
What does 1:1 mean?
Width and height are equal, so the frame is a square.
Is 1080 × 1080 a 1:1 image?
Yes. Both dimensions are equal.
Will making an image square avoid cropping?
Not always. If the source is not square, you must crop it or fit it inside a square frame.
Explore related tools and ratios
Choose a related ratio or continue to an image tool depending on what you need next.