Aspect Ratio Calculator
Calculate display aspect ratios and check scaling options for resolution dimensions.
How to Calculate & Use the Aspect Ratio Calculator
Find the aspect ratio of any image or video layout with our free aspect ratio calculator. Input height and width dimensions (in pixels, inches, or centimeters) to compute the simplified aspect ratio (such as 16:9 or 4:3) and find scaled dimensions for different layout sizes.
Input & Variable Breakdown:
- Width (pixels): Bounded variable used in the formulas.
- Height (pixels): Bounded variable used in the formulas.
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Frequently Asked Questions
To calculate the aspect ratio, find the Greatest Common Divisor (GCD) of the width and height, then divide both numbers by the GCD: Aspect Ratio = (Width / GCD) : (Height / GCD).
16:9 is the modern standard widescreen format used for most monitors, TVs, and YouTube videos. 4:3 is the older square-like format used by classic television sets, older computer monitors, and iPads.
To scale an image, multiply both the width and height by the same scaling factor. Alternatively, you can calculate a new width by dividing the new height by the original height and multiplying by the original width.