How to Change Cm to Inches in PowerPoint

Can you change cm to inches (cm to in) in PowerPoint? I was making this poster for a conference that required a poster size of 36 in x 55 in, but every time I was getting the PowerPoint slides size in centimeters. As I desperately tried to tinker with the settings in PowerPoint I realized that there was no easy way to change the measurement units from centimeters to inches in the PowerPoint settings.

Google Conversion Tool

Since my PowerPoint settings showed cm size by default, to create a poster of size 36 into 44 inches, I used the Google calculator to get convert inches to cm. Simply type ’36 into cm’ in the browser bar and I got a poster size of 142.24 cm x 91.44 cm!

google conversion

This is how my PowerPoint slide size looked like.

slide size in cm

I found that the professional printer could print a maximum poster length on one side of 36 inches. Getting all those decimal points in centimeters, it might lead to a slight error in printing size. So I wanted to change cm to inches in PowerPoint.

PowerPoint Cm to In

The secret lies in the Windows region and language settings. In the Windows 7 Control Panel, go to ‘Region and Language‘, then go to ‘Additional Settings‘, Under the ‘Numbers’ tab, you will find the Measurement system.

measurement system

It was selected to Metric, I changed it to ‘U.S.‘ and clicked ‘Apply’. That’s it.

Now in my Office 365 PowerPoint software, I again opened the Design > Slide size and behold, the slide size was now in inches.

slide size inches

I have been troubled by this simple measurement unit issue for a long time, but finally, I have been able to solve this issue. It is surprising that this small change needed a setting change that was so deeply embedded in the Windows setting. Well, now you know.

BTW it also changes your PowerPoint Ruler units also … so if you display Ruler in Powerpoint for fine alignment, those units can also be converted to your measurement units choice!


  1. The Top Blogger says:

    Getting excited about reading more. Great blog post.Really looking forward to read more. Great.

  2. Sk Hasib //lovelybd says:

    Great post. we know many thing about power point from this. we used everyday Power point to our computer. Thanks for share this.

  3. Tom Miller says:

    I guess that change measurements from Regional settings is most appropriate if you are about use the metric system from the current moment on.

  4. Wohllab says:

    It’s Called Perfect Article. Really Helpful Article. Thanks for Sharing with us.

  5. sania says:

    Nice info :)

  6. John Doe says:

    Very quick online tip for powerpoint presentation. Thanks a lot. I love using this software. :)

  7. Top Blogger says:

    Highly Recommended Article.

  8. jinny says:

    invaluable tip! thanks!

  9. vic says:

    now if we can only change the settings for use from “hard” to “easy” i wouldn’t have to use keynote instead.

  10. Florin says:

    Why is everything so complicated in Powerpoint. For each thing you either have to go to control panel, or to registers. Should be a settings section in to the software.

  11. Tricks Foorti says:

    Very informative and great post.

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