Why 4K is 4K: A Mathematical Analysis

[WinNut]

I thought I would post an analysis of why 4K is called 4K.

 

4K means 4 times. In this case, it is 4 times 1080p.

 

4K is 3840 * 2160 because it is 4 times 1080p.

 

This is why:

 

So if we increase both the x side and the y side by 2 we will end up with 4 times.

 

1080p is 1920 * 1080, so:

1920*2=3840

1080*2=2160

 

Now, 4K has 8,294,400 pixels. 1080p is, on the other hand, 2,073,600 pixels.

 

If we do 2073600 * 4, we will get 8294400, the pixel count of 4k, hence why 4k is called 4k.

 

I hope this helps.

[LukaP]

its also because its 3840 * 2160. and 3840 is almost 4000, which is commonly abbreviated as 4K

[TheNinjaNextDor]

So 8K is 16m pixels?

One for every color possible

(Almost)

[wng_kingsley7]

Who wants to do the mathematics now for 8K

[Excon]

This isnt some unknown amazing mathematical equation. I'm fairly sure everyone knows this.

[WinNut]

This isnt some unknown amazing mathematical equation. I'm fairly sure everyone knows this.

 

I just thought I would make it available  to all.

[Nineshadow]

We're not retarded,you know.

[Glenwing]

This isnt some unknown amazing mathematical equation. I'm fairly sure everyone knows this.

 

You'd be surprised...

[91wow]

This isnt some unknown amazing mathematical equation. I'm fairly sure everyone knows this.

I had a friend that thought it was 1920x1080*4

1920*4

1080*4

[Excon]

You'd be surprised...

Eh, I guess you're right. It never ceases to amaze me how stupid some people are.

[TheDigitalRealm]

It just works the same way as 1440p, being 4 times the resolution of 720p.

[WinNut]

Eh, I guess you're right. It never ceases to amaze me how stupid some people are.

Some kids in my class are *quite possibly* the stupidest people in the world, they are amazed that I can type on two keyboards at once with each hand getting it's own keyboard.

[BrightCandle]

Its a marketing name to try and sell TVs. To us PC users its a 2160p screen.