I wanted to convert all the units of one of my projects to either percentages or pixels and I was wondering what the conversion between em and pixels are.

Here is my understanding that 1.0 em is the letter em at 16 pixels.
So, am I correct in assuming that, 1.6 em is equal to 1.6 * 16 pixels, which is 25.6 pixels?

Also, isn't it impossible to use less than a whole pixel, so what would you recommend in the case that I want an element's heigh to be 25.6 pixels?

Thanks in Advance,
Team 1504