Instagram Image Sizes & Dimensions
Use this Instagram Post Size Calculator to determine the correct
pixel dimensions and aspect ratio for your Instagram content.
Select a format above or enter your own custom dimensions.
| Instagram Format |
Recommended Size |
Aspect Ratio |
| Portrait Post |
1080 × 1350 px |
4:5 |
| Square Post |
1080 × 1080 px |
1:1 |
| Landscape Post |
1080 × 566 px |
1.91:1 |
| Story |
1080 × 1920 px |
9:16 |
| Reel |
1080 × 1920 px |
9:16 |
| Profile Picture |
320 × 320 px |
1:1 |
| Carousel |
1080 × 1350 px |
4:5 |
What Is an Instagram Aspect Ratio?
Aspect ratio describes the proportional relationship between the
width and height of an image. For example, a 1080 × 1350 image has
a 4:5 aspect ratio. Using the correct ratio helps your content
display properly without unnecessary cropping.
Why Instagram Image Dimensions Matter
Choosing appropriate dimensions can help preserve image quality
and ensure your content fits the intended Instagram placement.
Different placements use different proportions, so a Post,
Story and Reel should not necessarily use the same canvas.
How to Calculate Instagram Image Size
Enter the width and height of your image. The calculator
automatically determines its aspect ratio, total pixels,
megapixels and orientation. You can also select one of the
preset Instagram formats to instantly see its recommended
dimensions.
Using the Calculator
- Select an Instagram format.
- Review the recommended dimensions.
- Enter custom dimensions if required.
- Check the calculated aspect ratio.
- Use the copy button to copy the dimensions.
Instagram Size FAQ
What is the best size for an Instagram portrait post?
A commonly used portrait canvas is 1080 × 1350 pixels with a
4:5 aspect ratio.
What is the Instagram Story size?
A vertical 9:16 canvas such as 1080 × 1920 pixels is commonly
used for Stories.
What is the Instagram Reel size?
Reels are designed for a vertical 9:16 format, commonly
1080 × 1920 pixels.
What is the Instagram square size?
A square Instagram image uses a 1:1 aspect ratio. A common
canvas is 1080 × 1080 pixels.
How do I calculate aspect ratio?
Divide the width and height by their greatest common divisor.
The resulting numbers represent the simplified aspect ratio.
Can I use custom Instagram dimensions?
Yes. Enter any width and height in pixels and the calculator
will calculate the resulting aspect ratio and other metrics.
