Simplifies a width×height into an aspect ratio.
Aspect Ratio takes a width and height like 1920x1080 and reduces it to its simplest aspect ratio (16:9) using the greatest common divisor, plus the exact decimal ratio. It is handy when you need to figure out the proportional ratio of a resolution, image, or video frame without doing the math by hand. Accepts the x, X, or : separator and works entirely in your browser.
No. The tool runs entirely in your browser and nothing is uploaded. The width and height you enter never leave your device.
Enter exactly two numbers separated by x, X, or a colon, for example 1920x1080, 1920X1080, or 1920:1080. Both values must be positive integers.
It returns two lines: the simplified ratio (for example 16:9) computed from the greatest common divisor, and the decimal ratio of width divided by height rounded to four decimal places.
You will see an error if the input does not contain exactly two parts split by x, X, or :, or if either value is not a positive whole number. Decimals, zero, and negative numbers are rejected.
No. Both width and height must be positive integers, so values like 1920.5 will produce an error.