Four parts wide for every three parts tall. 1600 x 1200 and 4032 x 3024 pixels are both 4:3.

What aspect ratio is my photo?

Divide its width by its height and compare. A 4032 x 3024 phone photo is 4:3, and a 6000 x 4000 camera photo is 3:2. Check your own file's pixel size, because cameras and phones differ.

How do I crop a photo to 16:9?

On a 4:3 photo, keep the full width and cut the height to width x 9 / 16. A 4032 x 3024 photo becomes 4032 x 2268, which removes 25% of the pixels.

How do I change the aspect ratio without cropping?

Fit the whole photo onto a canvas of the new shape and fill the empty space. Nothing is cut, but you add bars. See how to crop a photo to a square.

Is an aspect ratio the same as a size?

No. The ratio is the shape and the size is the pixel count. Crop to the ratio first, then resize.

How to crop a photo to an aspect ratio (4:3, 3:2, 16:9, 4:5 and more)

Updated October 25, 2026 · 4 min read

Short answer

An aspect ratio is width compared with height. To crop to one, keep the full height and cut the width to height x W / H if your photo is wider than the target, or keep the full width and cut the height to width x H / W if it is taller. Most editors have a ratio menu that does this for you.

What an aspect ratio is

An aspect ratio compares width to height. 4:3 means four parts wide for every three tall, so 1600 x 1200 and 4032 x 3024 pixels are both 4:3. The ratio sets the shape of the picture, not its size. Two photos can have the same ratio and very different pixel sizes.

Common ratios and where they turn up

1:1
Shape
Square
Where you meet it
Marketplace main photos such as 2000 x 2000 and 2048 x 2048 pixels. See crop to a square
4:3
Shape
Slightly wide
Where you meet it
A 4032 x 3024 phone photo, and SizeSpec's Etsy landscape preset at 2667 x 2000
3:2
Shape
Wider
Where you meet it
A 6000 x 4000 camera photo, and 4x6 prints. See crop to 4x6 and 8x10
5:4
Shape
Nearly square
Where you meet it
8x10 prints
7:5
Shape
Between 5:4 and 3:2
Where you meet it
5x7 prints
4:5
Shape
Tall
Where you meet it
A 1080 x 1350 Instagram portrait. See crop for Instagram
16:9
Shape
Wide
Where you meet it
A 1920 x 1080 video frame, and Google Play landscape screenshots
9:16
Shape
Tall and narrow
Where you meet it
Google Play portrait screenshots. See Google Play screenshot size

Ratio	Shape	Where you meet it
1:1	Square	Marketplace main photos such as 2000 x 2000 and 2048 x 2048 pixels. See crop to a square
4:3	Slightly wide	A 4032 x 3024 phone photo, and SizeSpec's Etsy landscape preset at 2667 x 2000
3:2	Wider	A 6000 x 4000 camera photo, and 4x6 prints. See crop to 4x6 and 8x10
5:4	Nearly square	8x10 prints
7:5	Between 5:4 and 3:2	5x7 prints
4:5	Tall	A 1080 x 1350 Instagram portrait. See crop for Instagram
16:9	Wide	A 1920 x 1080 video frame, and Google Play landscape screenshots
9:16	Tall and narrow	Google Play portrait screenshots. See Google Play screenshot size

How much each ratio removes

1:1
From a 4032 x 3024 phone photo
3024 x 3024
Removed
25%
From a 6000 x 4000 camera photo
4000 x 4000
Removed
33%
4:3
From a 4032 x 3024 phone photo
4032 x 3024
Removed
0%
From a 6000 x 4000 camera photo
5333 x 4000
Removed
11%
3:2
From a 4032 x 3024 phone photo
4032 x 2688
Removed
11%
From a 6000 x 4000 camera photo
6000 x 4000
Removed
0%
5:4
From a 4032 x 3024 phone photo
3780 x 3024
Removed
6%
From a 6000 x 4000 camera photo
5000 x 4000
Removed
17%
7:5
From a 4032 x 3024 phone photo
4032 x 2880
Removed
5%
From a 6000 x 4000 camera photo
5600 x 4000
Removed
7%
4:5
From a 4032 x 3024 phone photo
2419 x 3024
Removed
40%
From a 6000 x 4000 camera photo
3200 x 4000
Removed
47%
16:9
From a 4032 x 3024 phone photo
4032 x 2268
Removed
25%
From a 6000 x 4000 camera photo
6000 x 3375
Removed
16%
9:16
From a 4032 x 3024 phone photo
1701 x 3024
Removed
58%
From a 6000 x 4000 camera photo
2250 x 4000
Removed
63%

The largest crop of that ratio from a landscape photo, centred. 'Removed' is the share of pixels cut away.
Ratio	From a 4032 x 3024 phone photo	Removed	From a 6000 x 4000 camera photo	Removed
1:1	3024 x 3024	25%	4000 x 4000	33%
4:3	4032 x 3024	0%	5333 x 4000	11%
3:2	4032 x 2688	11%	6000 x 4000	0%
5:4	3780 x 3024	6%	5000 x 4000	17%
7:5	4032 x 2880	5%	5600 x 4000	7%
4:5	2419 x 3024	40%	3200 x 4000	47%
16:9	4032 x 2268	25%	6000 x 3375	16%
9:16	1701 x 3024	58%	2250 x 4000	63%

The formula for any ratio

01Compare shapes. Divide your photo's width by its height, and the target's W by its H. A larger photo number means your photo is wider than the target.
02If your photo is wider, keep the full height and cut the width to height x W / H. A 6000 x 4000 photo cropped to 4:3 keeps all 4000 pixels of height and becomes 4000 x 4 / 3 = 5333 pixels wide.
03If your photo is taller, keep the full width and cut the height to width x H / W. A 4032 x 3024 photo cropped to 16:9 keeps all 4032 pixels of width and becomes 4032 x 9 / 16 = 2268 pixels tall.
04Move the frame so the subject stays inside, and crop.

Pick the ratio in your app

iPhone: Photos, Edit, the crop icon, then the aspect ratio button. See how to crop a photo on iPhone.
Android: Google Photos, Edit, Crop, then tap Aspect ratio. See how to crop a photo on Android.
Windows: Photos, Edit, Crop, then pick an aspect ratio. See how to crop a photo on Windows.
Word or PowerPoint: Picture Format, Crop, Aspect Ratio. See how to crop a picture in Word and PowerPoint.
Photoshop: the Crop tool's ratio menu. See how to crop a photo in Photoshop.

A ratio is not a size

After you crop to a ratio, the picture may still be bigger or smaller than the pixels you need. Resize it next. The two steps together are in how to crop and resize a photo to a specific size in pixels.

Change the ratio without cutting anything

If nothing may be cut, scale the whole photo to fit a canvas of the new shape and fill the leftover space, for example with white. The square version of this is in how to crop a photo to a square. Some marketplaces ban added borders, so check the rules first.

Frequently asked questions

What does 4:3 mean?: Four parts wide for every three parts tall. 1600 x 1200 and 4032 x 3024 pixels are both 4:3.
What aspect ratio is my photo?: Divide its width by its height and compare. A 4032 x 3024 phone photo is 4:3, and a 6000 x 4000 camera photo is 3:2. Check your own file's pixel size, because cameras and phones differ.
How do I crop a photo to 16:9?: On a 4:3 photo, keep the full width and cut the height to width x 9 / 16. A 4032 x 3024 photo becomes 4032 x 2268, which removes 25% of the pixels.
How do I change the aspect ratio without cropping?: Fit the whole photo onto a canvas of the new shape and fill the empty space. Nothing is cut, but you add bars. See how to crop a photo to a square.
Is an aspect ratio the same as a size?: No. The ratio is the shape and the size is the pixel count. Crop to the ratio first, then resize.

Selling online? Do a whole batch at once

SizeSpec crops and resizes a batch of product photos to the size each marketplace asks for and gives you one ZIP. It crops from the centre or pads the image on white, and it works in your browser, so your files are never uploaded. It does not offer free-hand cropping of a single picture.

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