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Aspect Ratio calculator

If you scrolled down here, that means that you want more informations about aspect ratio or aspect ratio calculators.

What is Aspect Ratio and its usage?

Aspect ratio is a term that describes the ratio between the original size of a geometric shape and other sizes of them.
Nowadays Aspect Ratio term is used in common to describe images, video, movies and by electronic industry to describe the screen size of different devices such as TV, notebooks, tablets and even mobile phones. Wikipedia describes aspect ratio of an image like “the proportional relationship between its width and its height”.
For electronic devices we have some default aspect ratios values that are used by manufacturers to describe their devices screen’s.

How our aspect ratio calculator works?

In our aspect ratio calculators you can calculate aspect ratio value of an image or object, even new sizes for images that you want to resize.
You can use our aspect ratio calculator to convert the size of an image from original one to another sizes keeping the shape of the object and make him look natural without stretches.
If you want to calculate aspect ratio by your own, then maybe these forumlas will help you:

Aspect ratio calculation formula:

Aspect Ratio formula can be used in many ways in calculations.
This is the generic formula for calculating Aspect Ratio:

  • Aspect Ratio = Width / Height

Now, let’s say we want to calculate aspect ratio for an image that has 300px width and 150px height.
Aspect Ratio = Width / Height
Aspect Ratio = 300 / 150 = 2 / 1 => Aspect ratio of our image is 2:1

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Average Rating: 4.60 out of 5 stars. Total 10 reviews

Comments

  2. Rated 5 / 5 stars.

    This is exactly what I was looking for when wanting to get a aspect ratio for a predefined pixel dimension. All the other aspect ratio tools I found forced me to go along with their already defined aspect ratio or it would shift the other numbers as I placed them in. Congrats on this awesome tool. :-)

    P.S. I would like the Facebook page, but it says “Sorry, this content isn’t available right now”.

    Reply

    • Hi Josh,
      I’m glad that you linked my tool.
      Yep, the Facebook page is not ready to hit the road right now, but meanwhile you could hit one of the share buttons below the calculator.
      Thank you,
      Jeffrey

      Reply

  3. Rated 5 / 5 stars.

    Just wanted to say thank you for the tool. I work at a photography studio and this makes things really quick and handy to resize images while maintaining the aspect ratio. My whole team has bookmarked this page for easy usage!
    Reply

    • Hi Ryan. Thank you for your feedback.
      I will release soon a new version of the Aspect Ratio Calculator. You gave me a great idea. What do you say about a “Bookmark this” button, to simplify things?

      Reply

  4. Rated 4 / 5 stars.

    Ok, I’ve got a tough question. I am designing a 3D model in Google Sketch-up using an inch scale. It has the ability to cover any surface with a .jpeg image but the size limitation is 1024 x 1024 maximum. Therefore the entire process is 5 main steps of:

    #1 – Measure the area dimension to be covered with an image. (in feet, or inches, or mm)

    #2 – Find out the closest aspect ratio of the measured area.

    #3 – Choose the image you wish to use as the surface texture.

    #4 – Crop the image to match the required aspect ratio (and this can be from any large image)

    #5 – Rescale the cropped image to have a max width or max height of 1024 (not to exceed 1024 x 1024 pixels).

    As an example, let’s say I’ve designed the exterior wall of a house which measures 38 feet wide x 12 feet tall. This is therefore 38 / 12 = 3.16666 or roughly a 3.17:1 aspect ratio. (steps 1 & 2)

    I then need to choose an image, lets say of a brick wall and have found one online which is 2436 x 1827, thus an aspect of 1.333, or roughly 1.3:1. So, in wanting to use as much of the area as possible I now need to crop this image to the 3D model’s wall aspect of 3.17:1 …but… I need to know what that will be in pixels which will yield as close to 2436 x 1827 as possible to retain as much of the image and image clarity as possible. (step 4)

    Lastly, once cropped to match the 3D model’s wall surface I then need to downscale the image to a maximum width of 1024 pixels so that Sketch-up can use it. (step 5)

    Please explain a walk-through of the steps using the aspect calculator on this page. Thank you!

    Reply

    • Rated 4 / 5 stars.

      Hi Jeff,

      If I understood correctly, fist you’ll gonna need to measure your area into feets, inches or mm. I would use inches, because we have here an inches to pixels converter (you just need to know the DPI value to work with).

      So what you have to do:

      1. Go to inches to pixels converter and convert your measurements into pixels;
      2. Enter your Wpx and Hpx values into first two cells of Aspect Ratio Calculator, then put your max value, 1024px into New Width or New Height, given that this would be the correlated with previous values (so if you will have 960X620, you have to put 1024 into New Width). This will automatically calculate your corresponding value based on the largest one you have.
      3. Well, you have chosen your image. So I will skip this step.
      4. Crop your image to the New Width and New Height obtained (for my previous example would be 1024X661)
      5. You can skip this step, because you already scaled your image to fit intro 1024 x 1024px



      So that’s it. You have now successfully cropped your image maintaining Aspect Ratio and fit intro 1024 x 1024px.

      Hope this helps,
      Jeffrey Crockett

      Reply

  6. Rated 5 / 5 stars.

    I study at Tulane University and I often use this tool for my projects. The aspect ratio tool is very useful when I need to scale paintings.
    Reply

  7. Rated 4 / 5 stars.

    A very good tool when you have to resize multiple photos. Normally I used to use the formula presented here too on the website to calculate new dimensions for pictures … but I had to resize dozens of pictures maintaining the same aspect ratio, and this site helped me finish my work more quickly.
    Reply

    • Fantastic! I am very glad to see that more and more people are using this tool and it helps accomplishing their tasks. I hope to come back here every time you need Karen. Have a great day! :)

      Reply

  8. Rated 5 / 5 stars.

    Fantastic this tool. I use this app for about two months and every time I work on a web site (I’m a web developer), each time the tool does its job as it should. Images retains proportions at the same aspect ratio no matter if I have to reduce or even increase their size.
    Reply

    • I am glad that this tool could help you Kenneth. You’re welcome to use it every time you need. I will need to do some improvements to the algorithm that calculate aspect ratio and even some design improvements in the near future.

      Reply

  9. Rated 4 / 5 stars.

    I used the calculator a few times to zoom out some images keeping the same aspect ratio. It would be useful to remove decimals, at least I don’t use them.
    Reply

    • Thank you very much for your appreciation Maurice. I am glad that this tool could help you. I know that at the moment the application has some problems, it’s a raw version. Soon there will be several major improvements, stay close! :)

      Reply