How-to
How to Resize an Image to Exact Pixel Dimensions
Resize photos to an exact width and height in pixels - 1080 × 1080, 1920 × 1080, 600 × 600 - without stretching or blurring them. Includes common sizes for social media and forms.
· 2 min read · ConvertPixels Team
Profile pictures, banners, product listings and application forms all expect images at a particular size. Here's how to hit exact pixel dimensions while keeping the picture looking right.
Resize to an exact size
- Open Resize Image.
- Add your image - or a whole batch.
- Enter the width and height in pixels, or pick a preset.
- Choose how the image should fit (below) and press Resize.
Fit, fill or stretch?
When the new size has a different shape from the original - say a 4:3 photo into a 1:1 square - you have to choose:
- Fit keeps the whole picture and its proportions. The result may be smaller than the box on one side.
- Fill covers the whole box exactly and trims what overflows, like a centered crop.
- Stretch forces the exact size and distorts the picture. Rarely what you want.
For full control over what gets cut, Crop to the right aspect ratio first, then resize.
Common sizes
| Use | Size (pixels) |
|---|---|
| Instagram square post | 1080 × 1080 |
| Instagram portrait post | 1080 × 1350 |
| Instagram / TikTok story | 1080 × 1920 |
| YouTube thumbnail | 1280 × 720 |
| Full HD wallpaper | 1920 × 1080 |
| US passport photo (digital) | 600 × 600 to 1200 × 1200 |
| Website hero image | 1600-2400 wide |
Making images bigger
Shrinking an image keeps it sharp. Enlarging it can't create detail that was never captured, so a small photo stretched to twice its size looks soft. For enlargements, use the AI Image Upscaler, which predicts the missing detail at 2× or 4×.
Pixels vs. file size
Resizing changes the pixel dimensions, which usually shrinks the file too - but not to an exact number of kilobytes. If a form has a KB limit, resize first and then use Compress Image with a target size.
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