How to convert font size 10 to px

Question

I need to convert  lt font size  10  gt  to px    Example only not correct    lt font size  10  gt  is equivalent to 12px   Is there any formula or table conversion out there to convert  lt font size  10  gt  to px

User · Answer

the font size to em mapping is only accurate if there is no font-size defined and changes when your container is set to different sizes.

The following works best for me but it does not account for size=7 and anything above 7 only renders as 7.

font size=1 = font-size:x-small
font size=2 = font-size:small
font size=3 = font-size:medium
font size=4 = font-size:large
font size=5 = font-size:x-large
font size=6 = font-size:xx-large

User · Answer

According to The W3C      This attribute sets the size of the   font  Possible values          An integer between 1 and 7  This sets the font to some fixed size    whose rendering depends on the user   agent  Not all user agents may render   all seven sizes    A relative increase in font size  The value   1  means one size larger    The value  -3  means three sizes   smaller  All sizes belong to the scale   of 1 to 7       Hence  the conversion you re asking for is not possible  The browser is not required to use specific sizes with specific size attributes   Also note that use of the font element is discouraged by W3 in favor of style sheets

User · Answer

This cannot be answered that easily  It depends on the font used and the points per inch  ppi   This should give an overview of the problem

User · Answer

Using the data points from the accepted answer you can use polynomial interpolation to obtain a formula   WolframAlpha Input  interpolating polynomial   1  63   2  82    3 1    4 1 13    5 1 5    6  2    7 3    Formula  0 00223611x 6 - 0 0530417x 5   0 496319x 4 - 2 30479x 3   5 51644x 2 - 6 16717x   3 14  And use in Groovy code    import java math   def convert    x -   0 00223611 x  6 - 0 053042 x  5   0 49632 x  4 - 2 30479 x  3   5 5164 x  2 - 6 167 x   3 14  setScale 2  RoundingMode HALF UP     1  7  each   i -  println convert i

User · Answer

In general you cannot rely on a fixed pixel size for fonts  the user may be scaling the screen and the defaults are not always the same  depends on DPI settings of the screen etc     Maybe have a look at this  pixel to point  and this link   But of course you can set the font size to px  so that you do know how many pixels the font actually is  This may help if you really need a fixed layout  but this practice reduces accessibility of your web site

User · Answer

lt font size 1 gt - font size 1 lt  font gt  lt br gt   lt span style  font-size 0 63em  gt - font size  0 63em lt  span gt  lt br gt    lt font size 2 gt - font size 2 lt  font gt  lt br gt   lt span style  font-size  0 82em  gt - font size  0 82em lt  span gt  lt br gt    lt font size 3 gt - font size 3 lt  font gt  lt br gt   lt span style  font-size  1 0em  gt - font size  1 0em lt  span gt  lt br gt    lt font size 4 gt - font size 4 lt  font gt  lt br gt   lt span style  font-size  1 13em  gt - font size  1 13em lt  span gt  lt br gt    lt font size 5 gt - font size 5 lt  font gt  lt br gt   lt span style  font-size  1 5em  gt - font size  1 5em lt  span gt  lt br gt    lt font size 6 gt - font size 6 lt  font gt  lt br gt   lt span style  font-size  2em  gt - font size  2em lt  span gt  lt br gt    lt font size 7 gt - font size 7 lt  font gt  lt br gt   lt span style  font-size  3em  gt - font size  3em lt  span gt  lt br gt

User · Answer

This is really old  but  lt font size  10  gt  would be about   lt p style   font-size 55px  gt

[html] How to convert <font size="10"> to px?

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