Re: [webstandards-118] Em > Px > % Conversion Tool

From: john c.
Sent on: Thursday, March 25, 2010 4:46 PM
You can calculate your own table:

The base size is 16px;

so at 77%, you are setting the base size at: 16px * .77% = 12.32 px.

Thus
10px = 10px/12.32px = .812 em;
11px = 11px/12.32px = .893em;
...
20px = 20px / 12.32px = 1.54em;


Personally I just use px.  Every modern browser does something
sensible when zooming with both px and em, so the accessibly argument
is pretty dumb these days.  The reality is that we are most often
sizing text relative to images/icons which are pixel based artwork,
and the font should be specified the same as the artwork, hence px is
better than em.

Regards,
John Campbell

On Thu, Mar 25, 2010 at 4:16 PM, Jerome Covington
<[address removed]> wrote:
> I'm used to this: http://pxtoem.com­
>
> I see though that base font cannot be calibrated to 77%, which is set (not
> by me) on the body tag for a site I am helping build.
>
> Are there other tools that have able to be more finely calibrated?
>
> --
> Regards,
> Jerome
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