Resize Image by Percentage
Scale a photo to any percentage of its size, like 50% for half. Perfect for shrinking many images by the same amount.
Resize by Percentage · Step 1 of 3 · Add your photo
Drop an image to resize
or paste with Ctrl+V · JPG PNG WebP HEIC GIF · max 25 MB
Processed on this device. Nothing is uploaded.
Resize
All resize tools
Every ready-made size, already set up. Pick one and drop your image.
Example
Before and after
We ran this sample through the resize by percentage tool above. The numbers under each image are measured from the real files.
How to
How to resize an image by percentage
- 1.
Add your images. One or a whole batch.
- 2.
Pick a percentage. 50% halves the width and height. The shape never changes.
- 3.
Download. Save each image or a ZIP of all of them.
Why this size
What a percentage does to the file
Scaling by a percentage changes the width and the height by the same amount, so the shape stays exactly the same. Because the area shrinks in both directions, 50% leaves a quarter of the pixels, and the file usually gets about four times smaller.
That makes percentage scaling handy for batches: a folder of phone photos at 50% keeps every picture recognisable and cuts the total size dramatically.
| Scale | 4000 x 3000 photo becomes |
|---|---|
| 75% | 3000 x 2250 |
| 50% | 2000 x 1500 |
| 25% | 1000 x 750 |
| 10% | 400 x 300 |
Avoid
Common problems and fixes
- The image looks soft above 100%Enlarging cannot add detail. Start from a larger original when you need a bigger image.
- The file did not shrink as much as I expectedHalving the size cuts the pixels to a quarter, but very detailed photos compress less. Compress to a KB target if a form sets one.
FAQ
Resize by Percentage: questions
Checked
How we checked this page
Checked by the SizePort team on .
We test the tool with sample photos before it goes live and check that the sizes on this page match what it produces. Rules and platforms change, so if something here is out of date, tell us and we will correct it.
How the tool works
The tool scales your image once, from the original pixels, to the size you set. Everything happens in your browser; your images are never uploaded.