Summary How are aspect ratios calculated?
What sizes do my images and videos need to be?
Due to the limitations with Instagram's new API, we're only able to publish posts automatically if the image or video aspect ratio is within Instagram's accepted range, as detailed below.
An image or video’s aspect ratio describes the ratio between its width and its height. Aspect ratios are often represented as two numbers separated by a colon, e.g. 4:5. This can be a convenient way of displaying an aspect ratio and can be converted into a numerical value by dividing the first by the second. So, for example, an aspect ratio written as 4:5 has a value of 4/5 = 0.8.
Provided your image or video is within the accepted aspect ratio range, your post can be published automatically. If the aspect ratio of your image or video falls outside of the range, your post will be scheduled as a reminder instead. If you like, you can adjust the aspect ratio and then re-upload your image or video.
How are aspect ratios calculated?
Remember to watch out for rounding the results of your calculation digits. For example, 1200 x 628 pixels would correspond to an aspect ratio of 1.910828, therefore falling just outside of the acceptable range for an image. Similarly 799 x 1000 pixels would correspond to an aspect ratio of 0.799, again falling just outside of the acceptable range.
Your images and videos do not need to be any of the one sizes mentioned above, these are just examples. As long as they are within the accepted aspect ratio ranges, they will be published automatically.
Instagram's maximum file size limit is 8MB. If the image you upload is larger than 8MB, we'll convert it to a smaller size (1920 pixels wide) to ensure it can be published. The minimum dimensions they accept is 150 x 150 pixels. Smaller images will be scaled up to the minimum.