Calculate a scaled width or height that preserves your original aspect ratio.
Quick Answer
Aspect Ratio & Dimension Calculator lets you: Calculate a scaled width or height that preserves your original aspect ratio. To start, input the original width and height.
Input the original width and height.
Enter either a target width or height — the other updates automatically to preserve the ratio.
Click a common ratio preset like 16:9 or 1:1 to apply it instantly.
Original size
Scale to
Simplified ratio
16:9
Computed size
1,280 x 720