# Video Aspect Ratio

> Calculate video dimensions and aspect ratios. Useful for filmmakers, editors, and streamers.

**Category:** Media
**Keywords:** video, aspect ratio, 16:9, 4:3, calculator, resolution, cinema, stream
**URL:** https://complete.tools/video-aspect-ratio

## How it works

The tool calculates the aspect ratio by taking the width and height inputs provided by the user. It uses the formula: Aspect Ratio = Width / Height. These values are then simplified to their lowest terms by dividing both the width and height by their Greatest Common Divisor (GCD). The output is presented in the 'width:height' format, allowing users to easily interpret the ratio. This straightforward calculation ensures that users receive an accurate representation of the video's dimensions.

## Who should use this

Video editors determining the appropriate format for export, graphic designers creating content for various screen sizes, and game developers ensuring their visuals fit within specified display parameters. Additionally, educators creating instructional videos can benefit from understanding aspect ratios to optimize educational content for digital platforms.

## Worked examples

Example 1: A video has a width of 1280 pixels and a height of 720 pixels. To find the aspect ratio, divide both numbers by their GCD, which is 80. Thus, 1280 ÷ 80 = 16 and 720 ÷ 80 = 9, resulting in an aspect ratio of 16:9, commonly used in HD video formats. 

Example 2: Consider a video with dimensions of 640 pixels (width) and 480 pixels (height). The GCD here is 80. So, 640 ÷ 80 = 8 and 480 ÷ 80 = 6, giving an aspect ratio of 4:3, often used for standard definition television. 

Example 3: A cinematic video has a width of 1920 pixels and a height of 800 pixels. The GCD is 400. Therefore, 1920 ÷ 400 = 4.8 and 800 ÷ 400 = 2, resulting in an aspect ratio of 12:5, which is typical for certain widescreen formats.

## Limitations

The tool may face precision limits when dealing with extremely large or small pixel dimensions, which can affect the GCD calculation. Additionally, the tool assumes inputs are in pixels; any other measurement units may yield inaccurate results. It may not handle non-integer values correctly, as aspect ratios are typically expressed in whole numbers. Furthermore, edge cases such as zero or negative values for width or height are not addressed, potentially leading to undefined or misleading outputs.

## FAQs

**Q:** Can the tool handle non-integer dimensions, such as fractional pixel values?


**A:** No, the tool is designed to work with integer pixel dimensions only, as aspect ratios are conventionally represented in whole numbers.


**Q:** How does the tool determine the simplified aspect ratio?


**A:** The tool finds the GCD of the width and height values and divides both by this number to present the ratio in its simplest form.


**Q:** What happens if I input a width of zero?


**A:** Inputting a width of zero will lead to an undefined aspect ratio, as division by zero is mathematically invalid.


**Q:** Can the aspect ratio be greater than 1?


**A:** Yes, aspect ratios greater than 1 indicate that the width is greater than the height, which is common in widescreen formats.

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*Generated from [complete.tools/video-aspect-ratio](https://complete.tools/video-aspect-ratio)*