Scalar unit conversion

[MuongKimhong]

Is their anyway to convert scalar unit from one unit to another?

For example

box_height = self.query_one("Box").styles.height.value # 30h 

box_height_as_cell = ? # convert 30h to cell unit or
box_height_as_fraction = ? # convert 30h to fraction unit

or
fraction to cell, cell to fraction, etc.

Documentation doesn't mention anything related to unit conversion

[TomJGooding]

Couldn't you just check the Widget.size.height?