Aspect Ratio Calculator

Aspect ratio is the proportional relationship between width and height of an image, screen, or rectangle. It is expressed as width:height (e

The calculator uses the standard published formula for aspect ratio. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

This calculator works with inches, watts. You can enter values in the units shown — the calculator handles all conversions internally.

The core formula is: Aspect ratio = Width / Height, expressed as a ratio reduced to lowest terms. Each step in the calculation is shown so you can verify the result manually.