Is there a ration between font-size and line-height on the roboto font family?

I'm building a website project where I need to clip a text to a specific number of lines, maintaining the font default line-height.
To accomplish that I'm going to set the containing div height to a multiple of the line-height, but the font-size depends on the viewport height.

Is there a ration between font-size and line-height on the roboto font family?

Thanks,