What is 1920×1080 pixels in Photoshop?

Photoshop is a powerful software program used for creating and editing photographs, digital artwork, and other graphic designs. It's often used by professional photographers, graphic designers, and even amateur hobbyists to create stunning visual effects and images. It can also be used for digital retouching and manipulation of photographs.

What measuring units does Photoshop use?

Photoshop uses pixels as its primary measuring unit. A pixel is the smallest unit of measure used in digital imaging. The size of a pixel is usually expressed in terms of its width and height, measured in pixels. For example, a photo that is 1000 pixels by 1000 pixels is 1000 pixels wide by 1000 pixels high.

Besides pixels you can use metric or the imperial system, you can use points, picas and percentages. 

What is usually designed at 1920 x 1080 pixels resolution?

1920 x 1080 is a common resolution used in digital imaging and video production. This resolution is usually used when creating high-definition (HD) video images and other digital graphics. Many modern computer monitors and television sets have a 1920 x 1080 pixel resolution, making it the most popular resolution for digital media.

1920 x 1080 in different measuring units:

1920 x 1080 pixels can also be expressed in other metric units. The resolution can be expressed in centimeters (cm) as 32.51 cm x 18.29 cm at 150dpi or 9.14x16.26 cm at 300 dpi or in inches (in) as 11.25” x 20”. It really depends on what you're trying to design for, because the pixel density differs. Here's a pixels to cm calculator that might help. 

Conclusion

1920 x 1080 pixels is a popular resolution used in digital imaging and video production. It is often expressed in pixels, but can also be expressed in other measuring units such as centimeters, inches, points or percentages. 1920 x 1080 pixels is also the most common resolution used in modern computer monitors and television sets.