stacey wrote:i need to convert a one to one ratio to an angle, if this is even possible.
Whether it is possible or makes sense depends on what the ratio means. If it is a grade expressed as rise/run, it makes sense. If it is a mixing ratio of two ingredients, it doesn't.
For a grade, tan(angle) = rise /run,
angle = arctan(rise/run)
in the case of a 1:1 ratio, the answer is 45 °