After going through many SEO journals and blogs on web, I reached to the final conclusion that Google search results is not necessarily measured by the number of characters in Title tag of a webpage. Google now measures title tags length in Pixels in spite of measuring it in terms of character in title tag for SEO. I got inspired and regularly worked to fabricate such a pixel measurement SEO tool through which we can easily get to know the width of title tag of a webpage in pixel, and thus gave the name "Page Title Pixel Meter" to this tool.
After a deep research and observations, I found out that the maximum width of a page title should be between 466 and 496 pixels.