# Aspect ratio

Canonical page: https://nepocore.com/tools/aspect-ratio/

Simplify the relationship between image width and height. Calculate the matching height for a new width without changing proportions.

## How to use it

1. Enter the numbers, dates or units you want to compare.
2. Choose the calculation options and calculate.
3. Review the result together with the assumptions shown.

## Example

A 1920 × 1080 image has a 16:9 ratio; a new width of 1280 pixels gives a height of 720.

## Limits and checks

Pixel dimensions are whole numbers, so the final height may need rounding. The exact calculated height is also shown.

## Access and processing

Free to use without an account. Interactive processing requires JavaScript in a modern browser. Input is processed in the browser rather than sent to a processing server. Optional browser storage is not a synchronized account.


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