How do you convert pixels to inches?
- Find the dimensions of your digital image in pixels (see how).
- Find the DPI value of your monitor or your laptop screen(see how).
- Select your DPI value from dropdown or enter a custom value if yours is not listed.
- Insert your image dimensions in Pixels on specified boxes.
How to find DPI of your screen?
The easiest way to find your display DPI is to take a ruler or a measuring tape to measure the red portion of the screen from the right. Go to size chart below to find DPI resolution of your display. The most common value is 75 DPI for most of monitors.
Uncommon measurement? Calculate DPI below.
| Measurement | Screen DPI |
| 3 inches | 100 DPI |
| 3 ¼ inches | 92 DPI |
| 3 ½ inches | 85 DPI |
| 3 ¾ inches | 80 DPI |
| 4 inches | 75 DPI |
| 4 ¼ inches | 70 DPI |
| 4 ½ inches | 66 DPI |
| 4 ¾ inches | 63 DPI |
| 5 inches | 60 DPI |
What is a pixel, what is an inch?
Pixel definition provided by Dictionary.com
A pixel is the smallest element of an image that can be individually processed in a video display system.
Inch definition provided by Dictionary.com
An inch is a unit of length, 1/12 (0.0833) foot, equivalent to 2.54 centimeters.
When you have to convert pixels to inches?
Usually, converting pixels to inches is a good way to see how your images will look to a different screen or projector. If you have a presentation, and you want to add some images in that presentation, you may want to see how this image will show on the projector that you will use. Knowing the width and height of the image (in pixels) that we will use in the presentation, we can calculate the image width and height in inches, to make an idea how it will be displayed on the projector or another display, bigger or smaller.
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The DPI varies from one device to another, so that’s why you’re getting different results.
Also, you should calculate based on the output device DPI (in this case, the printer).
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I don’t see dpi on my resizing, just % and pixels. Usually, submissions are supposed to be at 1920 pixels minimum, but that makes my image HUGE according to this converter. Under properties on my photo, it does show it set at 300dpi, but of course I don’t know how to change that, or if it matters, since the image will be viewed on the judges computer. Can anyone help me using very simple terms?
Hi Coleen,
According to Inches to Pixels converter, your image should have 450px on the longest side.
The process I followed: Selected 75 DPI from the dropdown menu, entered 4 in the Inches box and the calculator showed me 450px as the result.
You can use an app like Gimp to change the photo resolution to 72. See here how to do it: http://cdn.makeuseof.com/wp-content/uploads/2015/10/gimp-change-dpi.gif
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If it’s an image, you can try a lossless compresion tool like ImageOptim or JPEGmini.
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Your website is really helpfull.
But please can you please tell me the formula of how you calculate dpi
Hi Fahim, glad you enjoy it.
About your question..
The formula to calculate pixels into inches is: Pixels / DPI = Inches
From this formula we can extract DPI as: DPI = Pixels / Inches
Hope it helps. If you have further questions, I’m here.
Have a nice day,
Jeffrey
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I can easily convert my JPEG image (that average 5+ MB File size) to a TIFF image, with an average of 15+ MB File size, but how do you size the picture to a print size of 8″ x 10″, and at 300 DPI?
Hi Michael,
I don’t understand what do you want to accomplish.
You can resize the picture using a photo editing app like Adobe Photoshop or if you’re on a Mac we have an article on our blog about resizing photos on Mac OS X with three default apps https://www.ninjaunits.com/blog/resize-images-mac/
Hope it helps,
Jeffrey
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I checked my Photoshop install and you cannot change to inches. You can at most to change to millimeters.
Photoshop menu > Preferences > Units & Rulers > Change to Millimeters.
You could use an online tool to convert millimeters to inches I think.
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tell me what my DPI is ? It must be more than 100.
Thanks
Hi Nagaraj.
If I’m right, 2 7/8” should be 2.88 inches in decimals. In this case, your DPI is 104.
You could use the DPI calculator from the left of the table for uncommon measurements like this one.
Hope it helps.
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Hi Beverly,
We could try. Can you provide me the DPI of your screen and the measurement in pixels from your photo?
Thank you!
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I got 2 inches exactly for my measurement of the area.
Any help would be appreciated! Thank you for this converter
Hi Shantal,
Your DPI value is 150.
Stay tuned, I will release the new version of the converter soon and you will have the option to calculate the DPI value by yourself.
Have a fantastic year,
Jeffrey!
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Glad it helped you Nora. You can make some experiments with DPI table even on mobile devices
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That’s a very interesting approach Todd. Glad it was useful. For my curiosity, what was your banner size?
It has 235×40 inches, and I had to make it in PhotoShop at 14.100×2.400px. That was a complete challenge for my laptop.
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Hi Joann,
Your DPI is 114.
For the moment the converter doesn’t know how to convert any other DPI’s than the preset ones. I will update the converter soon, and you should be able to calculate the DPI value by yourself and type other DPI values to convert your dimensions into inches.
Tell me your values in pixels and I’ll do the conversion for you.
Thank you for your feedback,
Jeffrey
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Glad that helped you Jack. To make it easier you could use the formula in excel to automate the process. The formula for the conversion is: Pixels / DPI = Inches
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Hi Ted,
Theoretically, you can. Just be sure you have specified the correct DPI.
Could you share a pic of your project? It sounds very interesting.
Have a nice day,
Jeffrey