An **aspect ratio calculator** is designed to help compute the **proportional relationship** between the **width** and **height** of an image, screen. This relationship is expressed as a **ratio**, typically in the format of **width:height**.

For example, consider a **widescreen TV** with dimensions of **60 inches wide** and **33.75 inches tall**. Using aspect ratio calculator, we can determine that this TV has an aspect ratio of **16:9**. This means that for every **16 units of width**, there are **9 units of height**.

## Aspect Ratio Calculator

Resolution | Width | Height | Aspect Ratio | Conversion Equation |
---|---|---|---|---|

Full HD | 1920 | 1080 | 16:9 | 1920/1080 = 16/9 |

4K UHD | 3840 | 2160 | 16:9 | 3840/2160 = 16/9 |

720p | 1280 | 720 | 16:9 | 1280/720 = 16/9 |

WXGA | 1366 | 768 | 16:9 | 1366/768 ≈ 16/9 |

SXGA | 1280 | 1024 | 5:4 | 1280/1024 = 5/4 |

iPad | 2048 | 1536 | 4:3 | 2048/1536 = 4/3 |

2K | 2048 | 1080 | 17:9 | 2048/1080 ≈ 17/9 |

2.35:1 Cinema | 2560 | 1080 | 2.35:1 | 2560/1080 = 2.35/1 |

21:9 UltraWide | 2560 | 1080 | 21:9 | 2560/1080 ≈ 21/9 |

QHD | 2560 | 1440 | 16:9 | 2560/1440 = 16/9 |

HD | 1280 | 720 | 16:9 | 1280/720 = 16/9 |

SVGA | 800 | 600 | 4:3 | 800/600 = 4/3 |

HD+ | 1600 | 900 | 16:9 | 1600/900 = 16/9 |

FHD+ | 2400 | 1080 | 20:9 | 2400/1080 ≈ 20/9 |

WQHD | 3440 | 1440 | 21:9 | 3440/1440 ≈ 21/9 |

Ultra HD | 7680 | 4320 | 16:9 | 7680/4320 = 16/9 |

Super HD | 3840 | 1600 | 24:10 | 3840/1600 = 24/10 |

## Aspect Ratio Calculation Formula

The formula for calculating aspect ratio is straightforward:

Aspect Ratio = Width : Height

To simplify the ratio, divide both the width and height by their **greatest common divisor (GCD)**. This process is called **reducing the fraction**.

Consider an image that is **1920 pixels wide** and **1080 pixels tall**.

Express this as a ratio: **1920:1080**

Find the GCD of **1920** and **1080** (in this case, it’s **120**).

Divide both numbers by the GCD:

1920 ÷ 120 = 16

1080 ÷ 120 = 9

The simplified aspect ratio is **16:9**.

Aspect ratio calculator is particularly useful in various fields, including:

**Photography**: Ensuring proper image composition and printing**Videography**: Maintaining consistent framing across different formats**Web design**: Optimizing layouts for various screen sizes**Graphic design**: Creating visually appealing and balanced designs

## How Do You Calculate a Ratio?

**Identify the quantities**: Determine which two values you want to compare i.e height and width.**Express as a fraction**: Write the first quantity over the second quantity.**Simplify**: Reduce the fraction to its lowest terms by dividing both the numerator and denominator by their**greatest common divisor**.**Express as a ratio**: Write the simplified fraction with a colon (:) instead of a division sign.

Let’s apply this process to calculate the aspect ratio of a **smartphone screen**:

Screen dimensions: **2532 pixels (height)** by **1170 pixels (width)**

Express as a fraction: **1170/2532**

Find the GCD (**78**) and simplify:

1170 ÷ 78 = 15

2532 ÷ 78 = 32.46(rounded to 2 decimal places)

Express as a ratio: **15:32.46**.

In practice, we often round to whole numbers for simplicity, so this ratio could be approximated as **15:32**.

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