Question 1

How to calculate aspect ratio online?

Accepted Answer

Enter any 3 values and the calculator auto-fills the 4th value. W1 is first width, H1 is first height, W2 is second width, and H2 is second height.

Question 2

How do I resize an image without changing aspect ratio?

Accepted Answer

Enter the original width and height in one pair, then enter one target value in the other pair. The missing value is calculated automatically to preserve proportions.

Question 3

What is 16:9, 4:3, 1:1, and 9:16 aspect ratio?

Accepted Answer

These are common width-to-height shapes. For example, 1920x1080 is 16:9, 1024x768 is 4:3, 1080x1080 is 1:1, and 1080x1920 is 9:16.

Question 4

What does Strech to aspect ratio do?

Accepted Answer

It forces the preview image to fill the frame completely, which can distort the image. Turn it off to keep natural crop-style preview.

Aspect Ratio Calculator