The wide-high-scale calculator: the gold guideline for visual design

In the digital content creation, Aspect Ratio It is the core parameter that determines the image and user experience. Whatever you are for Bilibi The production of videos, the design of cover pages for the public sign, and the development of responsive web pages are essential to understand and accurately calculate the width ratio. This tool provides you with a one-stop conversion and resolution scaling solution.

1. What is the width ratio?

The width ratio is the ratio of the image or screen width to the height. It usually means two numbers separated by colons (e.g. 16:9）。 This ratio does not represent the size of the actual pixels, but the shape of "skinny":

16:9： Modern wide screen standards, widely used for high-resolution television, web video and most monitors.
9:16： Mobile end vertical video standards, such as dithering, fast hands and video numbers.
4:3： Traditional television and early computer monitors are also often used for photography (e.g. M43 systems).
21:9： The film is extremely broad-screened and provides users with excellent immersion experience.

2. Specific issues addressed

This calculator is dedicated to the following applications for the Depth Optimization of the scene:

Resolution scaling: If you have a 16:9 picture, you want to change its width to 1200. Pixels, what's the height? Switch to the Zoom Resolution mode to produce the results in seconds.
Design fit: UI designers often need to calculate the ratio of non-standard sizes to ensure a perfect presentation on different screens.
Social media releases: Different platforms have different optimal recommended sizes. We have built a predefined size for the mainstream platform, and clicks are on it.
Visual preview: The dry numbers are hard to visualize, and our dynamic preview box allows you to see the visual effects of the scale at once.

3. Calculation logic: maximum number of conventions (GCD)

In order to convert the arbitrary resolution to the simplest, we have used the Eurocari algorithm to calculate the largest number of conventions with a wide margin. For example:

Enter width 1920, height 1080.
Calculate GCD(1920, 1080) = 120。
1920 / 120 = 16，1080 / 120 = 9。
The final ratio is 16:9.

4. On privacy and security

This tool is based entirely on JavaScript running in your local browser. Any size, resolution or design parameters you enter Never upload to server 。 You can be assured of use in any sensitive project without fear of disclosure.

Practical techniques

CSS can be used to organize web pages aspect-ratio Properties to lock the proportion of elements, e.g. aspect-ratio: 16 / 9; 。 This will effectively prevent layout deviations (CLS) when pages are loaded and enhance the site performance rating.