Aspect Ratio & Resolution Resize Calculator

Calculate proportional dimensions, simplify aspect ratios (16:9, 4:3, 9:16), and resize images or videos without distortion.

Parameters

Configure the inputs for precise results.

Awaiting Parameters

Fill in the tool settings and click calculate to see the magic happen.

How to Use

1

Enter Original Dimensions

Input original width and height in pixels.

2

Choose Target Dimension

Specify desired width or height to resize.

3

Get Proportional Dimensions

Instantly view resized resolution, aspect ratio string, and standard preset match.

FAQ

What is an aspect ratio?

An aspect ratio is the proportional relationship between an image or display’s width and its height (e.g. 16:9 for widescreen video, 1:1 for square).

How do you resize images without stretching?

By scaling one dimension and calculating the other using the simplified aspect ratio formula (New Height = (New Width × Original Height) / Original Width).