How Many Pixels For A Landscape 8 5×11? - K2

How many pixels are in an 8.5 x 11 page?

That all depends on the resolution of the file. A low-resolution (72 pixels per inch) US letter-size page will be 612px x 792px for a total of 484,704 pixels. A medium-resolution (150 pixels per inch) page will be 1275px x 1650px for a total of 2,103,750 pixels. A high-resolution (300 pixels per inch) page will be 2550px x 3300px for a total of 8,415,000 pixels. To figure out the pixels for other resolutions, just multiply 8.5 x (your resolution), 11 x (your resolution), then multiply the two numbers together for the total resolution of the area.

Pixels and inches are unrelated and not interdependent.

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However, 8 1/2 x 11 inch paper often contains at least 150 dpi dots per inch for a pleasing presentation of a photographic image, and desktop printers often accept input files containing 720 dpi of information, so figure out your parameters there.

150 pixels x 8 1/2 inches = 1,275 pixels across 150 pixels x 11 inches = 1,650 pixels down 1,275 x 1,650 = 2,103,750 / 1,024 / 1,024 = ~2.00 megapixels

720 pixels x 8 1/2 inches = 6,120 pixels 720 pixels x 11 inches = 7,920 pixels 6,120 x 7,720 = 48,470,400 / 1,024 / 1,024 = ~46.22 megapixels

So, ~2 megapixels to ~46 megapixels is a good range of how many pixels may present well on an 8 1/2 x 11 inch sheet of paper.

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I’m guessing these are inches.

Pixel, on its own, has no size, because it is not scalable - pixel is actually a position in a given image’s matrix. To specify the amount of pixels you need to describe a real/physical dimension, you require to specify the resolution of the image first - namely, the amount of pixels describing a given unit.

So, let’s say you have the so-called “screen resolution” of 72PPI (pixels-per-inch), so the dimension of the image matrix will be:

[math](8.5" * 72[ppi]) * (11" * 72[ppi]) = 612[px] * 792[px] = 484.704[px][/math]

However, for the yet again so-called “printing resolution” of 300PPI (it’s not really the resolution of a print, just an optimal resolution for an image to look fine after printing), you’ll have:

[math](8.5" * 300[ppi]) * (11" * 300[ppi]) = 2550[px] * 3300[px] = 8.415.000[px][/math]

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So, in order to get a definite answer to your specific question, you first have to specify the targeted resolution by which you are going to be describing the image.

That would depend upon the resolution in dots per inch (dpi) of the printer. On my laser jet printer the dpi is 300. That is each square inch has 300 x 300 dots positions or 90,000 pixels if you will. Therefore an 8.5 x 11 inch page (which is 93.5 square inches edge to edge) has 8,415,000 dot positions assuming the printer can print up to the edge of the paper.

DPI of color printers, IIRC, is less.

How many px is 8.5 x 11?

8.5x11 WHAT???

You are asking a philosophical question rather than a technical question. Paper does not have pixels. It is an analog medium.

The artist can decide how many pixels to place on paper. How many would you like?

The artist can be limited by the capability of printing machinery. What is the resolution of your printer?

The artist would eventually be limited by the texture of the paper, but it would fail gracefully as analog mediums do. What is the surface coating of your paper?

Paper does not care, it has no pixels.

As many as you print :-)

The standard for photo quality printing is 300 pixels per inch, or 300ppi. This is the minimum print resolution recommended by the Library of Congress for 4x5, 5x7, and 8x10 photographs (You Say You Want a Resolution: How Much DPI/PPI is Too Much? [ https://blogs.loc.gov/thesignal/2013/07/you-say-you-want-a-resolution-how-many-dpippi-is-too-much/ ]).

Now, keep in mind, this refers to full color pixels. So when you go buying a new inkjet printer, you’ll see things like “5760dpi”… that’s a ton of, well, dots per inch. And that’s the trick here. Your monitor has 24-bit or better color per pixel these days… that’s 256 levels of red, 256 levels of green, 256 level of blue possible per subpixel, for a total of over 16 million colors for any given pixel.

A printer, on the other hand, usually has at least four, sometimes as many as ten ink tanks. That means it can print in at least four, as many as ten colors. Period. So how does it get to photo quality?

It’s called dithering. The printer can’t change the color of an ink, but it can vary the droplet size. Every color can be printed at any location in your print. And yeah, they’re printing at 5760 of these dots per inch or so… so you have 19 or so dots per pixel.

Your printer’s driver, of course, does the math here, based on the full color image you’re printing. Better printers have standardized color matching profiles, and serious photographers use color-calibrated monitors. So what you see on-screen is what you get on paper… mostly. On screen, you’re seeing in that aforementioned red, green, and blue.

On paper, you’re printing CMYK+; that’s Cyan, Magenta, Yellow, Black, and perhaps others (most color printers also use Light-Cyan, Light-Magenta, Light Yellow; some offer grey, some red or green). These are called “subtractive primary colors”, as opposed to the “additive primary colors” used in monitors. On the monitor, you’re drawing with light, essentially, and so adding additional colors yields a brighter images, lowering the brightness of a color darkens the image. It’s the opposite in printing. Adding additional pigment gives you a darker images, subtracting yields a brighter image.

Eleventy-leven and a pineapple.

1080p video defines a set of pixel organizations: consumer HD (1920x1080), DCI-2k (2048x1080), and several standard DCI crops. It’s not even really a resolution — resolution is a measure from the analog world.

But we are talking about pixels. That’s a digital thing, an abstract thing. It had no physical representation until you send it to an output device. I have a 28″ monitor to my right. If I put a 1080p video on that screen, I get about 79ppi. If I put that on my 70″ HDTV, that’s about 31.5ppi. On my phone, that’s 526ppi.

Pixels per inch is really a thing that was invented for print. In printing, you have far more standardized paper and print sizes. Physical things you’re creating. It’s fairly meaningless before you’re printmaking.

What X

When you print to paper you must decide how many dots per inch you want to impress upon the surface. This often varies between 72 and 300 dots per inch, depending on the device doing the printing and the needs of the project.

Once you have determined dots per inch you can calculate how many pixels you’ll need.