In the table below, select a body font size in pixels (px) to display a complete "px to em and percent " conversion table. Tip: The default font size is usually 16px. Unit takes an important role for measuring and building things like a house, a bridge or a tower, and building a website is not an exception. There are a number. You can get the formula used to convert Em to Percent along with a table. Percent to decimal conversion calculator Enter a percent and press the Convert button: Just like how pixels are dead-accurate on monitors for font-sizing, point sizes are dead-accurate on paper. Finding a definitive answer can be difficult, most likely because the question, itself, is so difficult to answer. The only advantage seems to be readability, choose whichever you are most comfortable with. Your conversions Conversions based on your body font size Pixels EMs Percent Points. This way, you need a font size of 18px? For more information visit Wikipedia and Mozilla MDN. December 6, at 8: Everybody knows grandpa was in charge of the finances. CSS Tutorial Bootstrap Tutorial SQL Tutorial PHP Tutorial jQuery Tutorial Angular Tutorial XML Tutorial. Responsive Themes Help Make WordPress Sites Mobile Friendly - Kobayashi Online says: Some NN4 versions, for instance. Then you may need to reduce the size of some text font-size: With YUI one is supposed to use percentages. Actually there are a few ways, for instance, if you have set the font size of lists in ems, nested lists will have different font sizes unless you set it to 1em. Finally i understand this sizing in css. Join them; it only takes a minute: Technologies Ignited Technologies Ignited. I personally go for ems.