Aspect Ratio Calculator - Calculate Width to Height Ratio Online
Calculate the simplified aspect ratio and decimal value from any width and height dimensions
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Calculator
How to Use
1Enter the width value
2Enter the height value
3Click Calculate to get the simplified aspect ratio and decimal value
Frequently Asked Questions
Aspect ratio is the proportional relationship between the width and height of a display or image, expressed as two numbers separated by a colon (e.g., 16:9). It describes the shape of the frame.
16:9 means for every 16 units of width, there are 9 units of height. This is the standard widescreen format used by most modern TVs, monitors, and video content.
The ratio is simplified by dividing both width and height by their Greatest Common Divisor (GCD). For example, 1920×1080 divides by 120 to give 16:9.
The decimal ratio (width ÷ height) is useful for comparisons and calculations. A ratio of 1.7778 corresponds to 16:9, while 1.3333 corresponds to 4:3.