How to Resize an Image to Exact Pixel Dimensions
Need a photo at exactly 1200×630 or a square 400×400 avatar? Here's how to resize to precise dimensions without stretching or squashing the image.
Upload forms, social platforms and print jobs often demand an exact size — a 1200×630 share image, a 400×400 avatar, a 1080×1080 post. Resizing to hit those numbers is easy once you understand aspect ratio.
Keep the aspect ratio (usually)
Aspect ratio is the relationship between width and height. If you change one dimension and lock the ratio, the other updates automatically and the image stays undistorted. Unlock it only when you deliberately need a different shape — and expect some stretching.
Resize by pixels or by percentage
- By pixels — type the exact width or height you need. Best when a platform specifies a size.
- By percentage — scale to 50% or 25% of the original. Best when you just need it smaller and the exact numbers don't matter.
Resize instantly in your browser
Our resizer lets you enter exact dimensions or a percentage, lock or unlock the aspect ratio, and download the result immediately — nothing is uploaded.
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Image Resizer