Thanks Moor...

That is correct, sir... I checked you math and your conversion and they are both right...

Another way of looking at it is..... PPM (divided by) 17.857 = dKH.
example 245ppm divided by 17.857 =13.72 dKH

OK... So my alkalinity is 7.84dKH and my Ca is ~300... So, these need to come up a little... Right???