If your spending on CC is huge, converting to miles is typically what people do if they have intention of getting a biz flight or first class. You can refer to other articles write up on the calculation. For economy class the ratio is not that worthwhile comparing to biz/1st class. In summary, yes, converting CC points to miles is good only: 1) High spending on CC ($xxxx per month) 2) Redeeming Biz or First class. my 2 cents.