## What is a 16:9 aspect ratio?

The 16:9 aspect ratio is the current most popular standard format for landscape images, videos, TV shows, and films. It's also the ratio of the dimensions for most HDTV^{[1]}, projectors, and computer screens.

The aspect ratio has a standard format as **W:H** or **WxH**, where **W** is the width, and **H** is the height of an image, screen, or container. In digital space, the measurement unit is in pixels. You can pronounce it "sixteen-by-nine" or "sixteen-to-nine" aspect ratio.

## 16:9 ratio formula

You can use the following formula and steps to check if an image or display has a 16:9 aspect ratio. First, determine the width and height of your image, video, or screen in centimeters, inches, or pixels. Then, divide the width by the height. If the answer is **1.78** (1.77778), it has a 16:9 aspect ratio.

To find a new width (W) from a desired height (H):

To find a new height (H) from a desired width (W):

Example 1: Calculating a new image height.

For instance, suppose you wish to compress an image by reducing its resolution so you can easily share it on the web. The original dimensions are 1920 pixels horizontally and 1080 pixels vertically. What is the new height of the image if you want the new compressed image's width at 320 pixels without stretching and distortion?

**Solutions**

Before calculating the new height, you first need to calculate the original image aspect ratio:

By knowing the desired width and the image ratio, you can calculate the new height by using the 16:9 formula as follows:

## Common 16:9 resolutions

Here is the 16:9 resolution cheat sheet you can reference to identify the 16:9 resolutions on images, videos, televisions, tablets, projectors, and other devices.

Width (px) | Height (px) | Standard |
---|---|---|

256 | 144 | 144p video |

426 | 240 | 240p video |

640 | 360 | nHD |

854 | 480 | FWVGA |

1024 | 576 | WSVGA |

1280 | 720 | HD (High Definition) |

1366 | 768 | WXGA or FWXGA |

1600 | 900 | WSXGA |

1920 | 1080 | FHD (Full HD) |

2560 | 1440 | QHD |

3840 | 2160 | 4K UHD^{[2]} |

5120 | 2880 | 5K UHD |

7680 | 4320 | 8K UHD^{[3]} |

## Common 16:9 screen sizes

Here are the dimensions, in inches and centimeters, for everyday 16:9 display and printing sizes with diagonals ranging from 1 to 98 inches.

Diagonal | Width | Height |
---|---|---|

1″ 2.54 cm | 0.87″ 2.21 cm | 0.49″ 1.25 cm |

2″ 5.08 cm | 1.74″ 4.43 cm | 0.98″ 2.49 cm |

3″ 7.62 cm | 2.61″ 6.64 cm | 1.47″ 3.74 cm |

4″ 10.16 cm | 3.49″ 8.86 cm | 1.96″ 4.98 cm |

5″ 12.7 cm | 4.36″ 11.07 cm | 2.45″ 6.23 cm |

6″ 15.24 cm | 5.23″ 13.28 cm | 2.94″ 7.47 cm |

7″ 17.78 cm | 6.1″ 15.5 cm | 3.43″ 8.72 cm |

8″ 20.32 cm | 6.97″ 17.71 cm | 3.92″ 9.96 cm |

9″ 22.86 cm | 7.84″ 19.92 cm | 4.41″ 11.21 cm |

10″ 25.4 cm | 8.72″ 22.14 cm | 4.9″ 12.45 cm |

11″ 27.94 cm | 9.59″ 24.35 cm | 5.39″ 13.7 cm |

12″ 30.48 cm | 10.46″ 26.57 cm | 5.88″ 14.94 cm |

13″ 33.02 cm | 11.33″ 28.78 cm | 6.37″ 16.19 cm |

14″ 35.56 cm | 12.2″ 30.99 cm | 6.86″ 17.43 cm |

15″ 38.1 cm | 13.07″ 33.21 cm | 7.35″ 18.68 cm |

16″ 40.64 cm | 13.95″ 35.42 cm | 7.84″ 19.92 cm |

17″ 43.18 cm | 14.82″ 37.63 cm | 8.33″ 21.17 cm |

18″ 45.72 cm | 15.69″ 39.85 cm | 8.82″ 22.41 cm |

19″ 48.26 cm | 16.56″ 42.06 cm | 9.31″ 23.66 cm |

20″ 50.8 cm | 17.43″ 44.28 cm | 9.81″ 24.91 cm |

21″ 53.34 cm | 18.3″ 46.49 cm | 10.3″ 26.15 cm |

22″ 55.88 cm | 19.17″ 48.7 cm | 10.79″ 27.4 cm |

23″ 58.42 cm | 20.05″ 50.92 cm | 11.28″ 28.64 cm |

24″ 60.96 cm | 20.92″ 53.13 cm | 11.77″ 29.89 cm |

25″ 63.5 cm | 21.79″ 55.35 cm | 12.26″ 31.13 cm |

26″ 66.04 cm | 22.66″ 57.56 cm | 12.75″ 32.38 cm |

27″ 68.58 cm | 23.53″ 59.77 cm | 13.24″ 33.62 cm |

28″ 71.12 cm | 24.4″ 61.99 cm | 13.73″ 34.87 cm |

29″ 73.66 cm | 25.28″ 64.2 cm | 14.22″ 36.11 cm |

30″ 76.2 cm | 26.15″ 66.41 cm | 14.71″ 37.36 cm |

32″81.28 cm | 27.89″ 70.84 cm | 15.69″ 39.85 cm |

34″ 86.36 cm | 29.63″ 75.27 cm | 16.67″ 42.34 cm |

40″ 101.6 cm | 34.86″ 88.55 cm | 19.61″ 49.81 cm |

42″ 106.68 cm | 36.61″ 92.98 cm | 20.59″ 52.3 cm |

43″109.22 cm | 37.48″ 95.19 cm | 21.08″ 53.55 cm |

48″ 121.92 cm | 41.84″ 106.26 cm | 23.53″ 59.77 cm |

50″127 cm | 43.58″ 110.69 cm | 24.51″ 62.26 cm |

55″139.7 cm | 47.94″ 121.76 cm | 26.96″ 68.49 cm |

58″ 147.32 cm | 50.55″ 128.4 cm | 28.44″ 72.23 cm |

60″ 152.4 cm | 52.29″ 132.83 cm | 29.42″ 74.72 cm |

65″165.1 cm | 56.65″ 143.9 cm | 31.87″ 80.94 cm |

70″ 177.8 cm | 61.01″ 154.97 cm | 34.32″ 87.17 cm |

75″190.5 cm | 65.37″ 166.04 cm | 36.77″ 93.39 cm |

77″ 195.58 cm | 67.11″ 170.46 cm | 37.75″ 95.89 cm |

83″ 210.82 cm | 72.34″ 183.75 cm | 40.69″ 103.36 cm |

85″215.9 cm | 74.08″ 188.17 cm | 41.67″ 105.85 cm |

86″ 218.44 cm | 74.96″ 190.39 cm | 42.16″ 107.09 cm |

97″ 246.38 cm | 84.54″ 214.74 cm | 47.56″ 120.79 cm |

98″248.92 cm | 85.41″ 216.95 cm | 48.05″ 122.04 cm |

## FAQs

How do I calculate the 16:9 aspect ratio?

The 16:9 aspect ratio is a widescreen format that contains 16 units horizontally for every nine units vertically. It can be calculated by dividing the width by height and getting a value of **1.78** (1.7777778).

For example, the ratio between the width and height of the HD (1280 x 720), Full HD (1920 x 1080), and 4K UHD (3840 × 2160) resolutions are equal to **1.78**.