To determine appropriate frame size, mat widths, or image size to complete your picture framing project. After the calculation is completed preview the results.

Quickly Calculate the dimensions of a mat, image, or frame for your project.

"A good tool that makes calculations easy. Thanks!" - Farquarsen

The Matting Calculator has been developed to help artists, framers, and DIY'ers to accurately calculate the following questions:

1. What opening will I have if I use an existing frame with a set mat width?

2. What frame size do I need to fit my image with a set mat width?.

3. What mat width are needed mat an existing frame with my image?

While the math to preform these calculations is easy, it is also easy to make calculation errors. When mistakes are made they are often not caught until after the mat is cut. With the cost of mat board currently going between $5 to $50. The savings received from getting the calculations correct is very valuable. Capture this value by using the Matting Calculator today.

The Matting Calculator also comes with these additional features:
* Mat Board Optimize
* Proportions Scale
* Mat Preview
* Save Calculation

Mat Board Optimizer - This simple tool lets you know how many mats with the same outer dimensions can be cut out of one board. The layout preview shows different options for laying out the mats to get the most out of the board. This feature will save you additional $$ by maximizing your materials.

Proportions scale - This tool lets you easily scale to different sizes without modifying the proportions. This is especially useful when you have the option to print an image any size you want.

Mat Preview - Have you ever wanted to know what your finished mat will look like before you buy the wrong color. The preview tool lets you insert an image into a scaled mat preview. You can change out colors, and find the right color before you buy the board.

Save Calculation - After completing a calculation you can use the save tool to assign that calculation a name and keep for future use. Easily browse through your saved mat calculations at a later date. This allows you to create a virtual mat library of calculations.

Get the Matting Calculator today!

What’s New

Version 4.3

This app has been updated by Apple to use the latest Apple signing certificate.

Cleaned up interface and fixed image load feature.

Ratings and Reviews

3.6 out of 5
26 Ratings

26 Ratings

DrClock ,

A very fine app that is easy to use.

This is a clean and easy way to get the layout with out a pencil and paper. It's nearly there for me though because the Mat Optimization tool instantly shuts the app off and closes it. It doesn't freeze, it just quits. I have an iPhone 5s. If this can be fixed I have some suggestions for the app.

invisionz ,

Updated App ROCKS!!!!!👍

It had been awhile since I used this app and to be honest with you I thought it sucked back then.

NOW, since this app has been updated I find it even more useful. I love the additional features such as the Mat Board Optimizer and Proportional Scale. Awesome!

When matting a photo or project, you need to know what you want to achieve and then this app will help you conceive and plan your matting and framing requirements. It would help if you are already familiar with how to perform mat cutting but not necessary if you can perform some basic critical thinking and aren't an of entitled spoon feed me or read my mind kinda person.

I love the app now and it is even better with the ability to load a picture from my photo album or even take a pic on the fly to visualize the mat. Heck you can even change the mat color too.

Thanks again for the update!

Zelo Photography ,

Finally used it!

I’ve had this app on my phone for maybe 3 years now (at least), because being a DIY’er I knew I’d need it eventually, and since it’s been 20 years since I worked in the framing dept at Michaels I basically forgot everything I learned, haha! Anyway, cut some mats last night and this app calculated the perfect dimension. Great app, can’t wait to cut more mats!

App Privacy

The developer, Courtney & Company, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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