The correspondence between the font size in Word and the HTML font size

Often have customers need the system on the font size in Word to describe, we often do not know their corresponding relationship, such as word in the "small" in the HTML is how many "px" or "Pt."
In a long period of time has not been found in the relevant information, can only be used to eye, not very accurate.
Some of the previous geniuses thought of a method that could be easily viewed.
Specific methods:
Enter a paragraph of text in Word, and adjust the text to the size you want, that is, "number third or small", and then save the file as a Web page, select "HTML" format in the format, and then close Word, the saved HTML file opened with the editing tool, you can find the text represents the size of the HTML font.

However, the font size of this method can only be expressed in "PT", can not be converted to "px".

Enclose the commonly used font size corresponding relation.
Initial number: 42pt; early: 36pt; one: 26pt; second: 24pt; 22pt
Small two: 18pt; third: 16pt; minor: 15pt; fourth: 14pt; small four: 12pt
No. Fifth: 10.5pt Small Five: 9pt