Nothing cut off
Fit keeps every pixel of your photo and fills the new space with a soft blurred copy of it, a colour of your choice, or transparency.
Aspect ratio changer
Change the aspect ratio of a picture
Need a photo in a different shape, for a story, a YouTube video or an Instagram post? Pick the new aspect ratio and keep the whole picture with a blurred or coloured border, or fill the shape and choose what stays. Several pictures at once, with a live preview.
- Fast
- Private
- No upload
Drop your pictures here
JPG, PNG or WebP, up to 50 pictures
Your files are processed on your device and are never uploaded.
No picture needed
Aspect ratio calculator
The aspect ratio is the shape of a picture or screen: its width compared with its height. Find the ratio of any size, or the missing width or height for a ratio.
Find the ratio of a size
1920 × 1080 = 16:9
Find the missing width or height
Type a width to get the height, or a height to get the width.
Common aspect ratios and sizes
| Ratio | Used for | Common sizes (pixels) |
|---|---|---|
| 1:1 | Instagram post, profile photos | 1080 × 1080 |
| 4:5 | Instagram and Facebook feed (portrait) | 1080 × 1350 |
| 9:16 | Stories, Reels, TikTok, YouTube Shorts | 1080 × 1920 |
| 16:9 | YouTube, TV, laptop screens, slides | 1920 × 1080, 1280 × 720 |
| 4:3 | iPad, older monitors and slides | 1024 × 768, 1600 × 1200 |
| 3:2 | Camera photos, 6 × 4 inch prints | 1800 × 1200, 6000 × 4000 |
| 2:3 | Pinterest pins, 4 × 6 inch prints | 1000 × 1500 |
| 21:9 | Ultrawide monitors, cinema | 2560 × 1080, 3440 × 1440 |
How it works
Aspect ratio changer in three steps
- Choose your picturesSelect one or more JPG, PNG or WebP pictures. Each one shows its size and current shape, for example 1080 x 1350 (4:5).
- Pick the new shapeChoose 9:16 for stories and Reels, 16:9 for YouTube, 4:5 or 1:1 for Instagram, or type your own ratio. Keep the whole picture with a blurred, coloured or transparent border, or fill the shape and drag to choose what stays.
- DownloadClick Change aspect ratio and download your pictures, one by one or together as a ZIP. Your originals are not changed.
Why use it
Aspect ratio changer with ToolsCampus
Every social shape
Ready shapes for stories, Reels, TikTok, Shorts, YouTube, Instagram and Pinterest, plus any custom ratio, and an exact width such as 1080 pixels.
Private by design
Your pictures never leave your device. Everything happens in your browser, so nothing is uploaded or stored on our servers.
Questions, answered
Aspect ratio changer questions
How do I change the aspect ratio of a photo without cropping it?
Choose the new shape and keep "Keep the whole picture". The photo stays complete and the empty space becomes a border: a blurred copy of the photo, white, black, any colour, or transparent.
What is the aspect ratio of an image?
It is the shape of the picture: its width compared with its height. 1920 x 1080 is 16:9 (wide), 1080 x 1920 is 9:16 (tall) and 1080 x 1080 is 1:1 (square). The calculator below works it out for any size.
What is the difference between aspect ratio and resolution?
Resolution is the number of pixels, such as 1920 x 1080; the aspect ratio is only the shape, 16:9. A 1280 x 720 picture has a lower resolution but the same 16:9 shape.
Which aspect ratio should I use for Instagram, TikTok and YouTube?
Instagram feed: 4:5 (1080 x 1350) or 1:1 (1080 x 1080). Stories, Reels, TikTok and Shorts: 9:16 (1080 x 1920). YouTube videos and thumbnails: 16:9 (1920 x 1080 or 1280 x 720).
Will it lose quality?
No. With Full quality the photo keeps all its pixels and only gets a border, or is only cut. Setting a smaller width makes the picture smaller, as you would expect.
Are my pictures uploaded?
No. Everything happens in your browser on your own device.
Comments
No comments yet. Ask a question or share a tip that helped you.