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Calculation

Aspect Ratio

Enter a width and height in pixels to see the simplified ratio, such as 16:9 or 4:3. Choose a common ratio to resize the other side, or scale both sides by a percentage. The matching sizes stay on whole pixels.

Layout

Simplified ratio

Turn 1920×1080 into 16:9, plus the decimal and orientation.

Lock a ratio

Pick 16:9, 4:3, 1:1, or 9:16 and the other side follows.

Scale

Resize both sides by a percentage without changing the ratio.

Input

Enter a pixel size, lock a ratio, or scale both sides together.

Enter a pixel size to read its aspect ratio. Pick a common ratio to resize the other side, or scale both sides by a percentage.