The unit em is: 1em = current font-size Then, whatever your document unit is (which is also the unit of the font that is shown), you need to use that to do your calculation accordingly. E.g. my document has a document unit of mm. Therefore, if I type a text, I get the font size indicated in mm (in ...

Thanks for the list: 'in':90.0, 'pt':1.25, 'px':1.0, 'mm':3.5433070866, 'cm':35.433070866, 'm':3543.3070866, 'km':3543307.0866, 'pc':15.0, 'yd':3240.0 , 'ft':1080.0 What is not clear to me is For the relative unit em, you'll need to insert the font size/m-height in px, then multiply by the em value....

I'm using another version but when I opened your file that vertical space between lines was 10. In the picture above it is 25px. When I changed it to 1 the text was corrected.



I don't know why but the distance between lines are changed.

Is it not related to that 25px space?

I am using Inkscape 0.91 r13725 on Linux Mint 18.

I would like to change the horizontal/vertical kernel of some font characters. But the kernel box on toolbar only allows px values.

How to do a kernel of -0.125em for example? Or in pt?