Mr Calcu | Aspect Ratio Calculator – Scale Resolutions Easily

Calculate and adjust aspect ratios for screens, images, and videos. Maintain proportional scaling for resolutions.

Aspect Ratio Calculator

Aspect Ratio Calculator Guidelines

  • Enter the width and height of a screen, image, or video.
  • Click "Calculate Aspect Ratio" to determine its proportional size.
  • Use this tool to resize images while maintaining the correct ratio.
  • For video editing, ensure aspect ratios match your target format.
  • Compare different aspect ratios to find the best display format.

Aspect Ratio Calculator Description

What is Aspect Ratio?

Aspect ratio refers to the proportional relationship between the width and height of an image, screen, or video. It is expressed as width:height, such as 16:9 for widescreen displays or 4:3 for older TV formats.

How to Calculate Aspect Ratio?

Aspect ratio is calculated using the formula:

Aspect Ratio = Width ÷ Height

For example, if a screen has a resolution of **1920×1080 pixels**, the aspect ratio is:

1920 ÷ 1080 = 16:9

Common Aspect Ratios

  • 16:9 – Widescreen, HDTV, modern laptops.
  • 4:3 – Older TVs and monitors.
  • 21:9 – Ultra-wide monitors and cinematic video.
  • 1:1 – Square images, social media posts.

Why Aspect Ratio Matters?

Maintaining the correct aspect ratio ensures proper scaling without distortion. Whether resizing images, editing videos, or choosing the best monitor, this tool helps preserve proportions accurately.

Use This Tool Now

Enter the width and height of an image or screen to instantly calculate the aspect ratio. You can also resize based on a fixed aspect ratio while maintaining proportions.

Example Calculation

Resolution (Width × Height) Calculated Aspect Ratio
1920×1080 16:9
1280×720 16:9
1024×768 4:3
2560×1080 21:9

Frequently Asked Questions

An aspect ratio is the proportional relationship between width and height, expressed as width:height.

Divide the width by the height and simplify the fraction to find the aspect ratio.

16:9 is the standard for HDTV, YouTube, and most digital content, while 4:3 is used for older screens.

Yes, but you must crop or add borders to maintain proportions without stretching the image.

4K (3840×2160) has an aspect ratio of 16:9, the same as Full HD (1920×1080).

Our Other Tools