Is it possible to translate the size of a vw in rem?

On the website all font-size in vw.
It is necessary that to a certain window size (980px) size ceased change, that is, if more than 980 the font is increased proportionally to the window, the less it becomes like 980px.
Thought can translate into rem and calculate the font size of html in js? Or you may decide to do something differently?
July 8th 19 at 11:30

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