Aspect Ratio Calculator

Calculate a video's aspect ratio and solve the missing dimension for a target ratio.

Width (px)

Height (px)

Target ratio width

Target ratio height

Aspect ratio is width divided by height. The target ratio can be any positive numeric pair.

How to use this calculator

What to enter

Enter or select the following as requested: Width (px); Height (px); Target ratio width; Target ratio height. Follow the units, valid ranges, examples, and options displayed beside each field.

What the result means

The numerical result follows the operation or relationship named by the calculator and the values entered. Check the order of operations, sign, precision, and units shown, especially when combining percentages or ratios.

When to use it

Use this to calculate or verify a numerical value. Recheck the input values and rounding if the result will be used in a report, measurement, or further calculation.