What is the aspect ratio of 1920 × 1080?

It is 16:9 because dividing both dimensions by 120 gives 16 and 9.

Will resizing preserve every pixel?

No. This calculator provides dimensions only. Image software decides how pixels are resampled, and rounding may be required.

Is aspect ratio the same as resolution?

No. Resolution gives pixel dimensions; aspect ratio describes the proportional relationship between width and height.

Design

Aspect Ratio Calculator

Calculate and simplify an aspect ratio, find matching resize dimensions, compare common presets, and preview the shape.

Loading tool…

About Aspect Ratio Calculator

Calculate and simplify an aspect ratio

The ratio is reduced by the greatest common divisor of the width and height. For example, 1920 × 1080 simplifies to 16:9. The decimal value is also shown for comparisons.

Find matching resize dimensions

Lock the width or height and enter a new value. The calculator derives the other dimension while preserving the original ratio and rounds the result to a whole pixel.

Presets and previews

Use common ratios and resolution examples for quick comparisons. The preview shows shape, not physical size or display density.

Frequently asked questions

Q. What is the aspect ratio of 1920 × 1080?: It is 16:9 because dividing both dimensions by 120 gives 16 and 9.
Q. Will resizing preserve every pixel?: No. This calculator provides dimensions only. Image software decides how pixels are resampled, and rounding may be required.
Q. Is aspect ratio the same as resolution?: No. Resolution gives pixel dimensions; aspect ratio describes the proportional relationship between width and height.

Related tools

Image Aspect Ratio Calculator and Crop Tool

Read image dimensions and aspect ratio, inspect pixel count and format, then crop to a fixed ratio and download the result locally in your browser.

Questions or feedback? Contact NanToo

Rate this tool

3.7(3 ratings)