# ISIG and Calibration Factor: Using my Sensor Raw Data as part of Blood Sugar Management: **URL:** \ **Category:** Type 1 & LADA\ **Created:** [May 26, 2018, 12:19am UTC](https://forum.fudiabetes.org/t/isig-and-calibration-factor-using-my-sensor-raw-data-as-part-of-blood-sugar-management/4099 "2018-05-26T00:19:57Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![Eric](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/eric/32/9209_2.png) [@Eric](https://forum.fudiabetes.org/u/Eric)\ **Post date:** [May 26, 2018, 2:32am UTC](https://forum.fudiabetes.org/t/isig-and-calibration-factor-using-my-sensor-raw-data-as-part-of-blood-sugar-management/4099/2 "2018-05-26T02:32:21Z")
> [@Nickyghaleb](#): > > I’m not sure if any of you use your calibration factor for anything, but I calculate mine in order to see what’s happening in the interstitial fluid alongside what’s happening in the blood. I understand the basis your idea, but how are you calculating your CF from your BG reading every time? Maybe I am missing something. > [@Nickyghaleb](#): > > I’m not sure if any of you use your calibration factor for anything, but I calculate mine in order to see what’s happening in the interstitial fluid alongside what’s happening in the blood. I do something that might be similar. Not sure if this is the same thing you are talking about. I know that my CGM is always behind my BG number. So if my CGM is 30 points higher than my BG number, I know I am dropping more rapidly than if my CGM is only 10 points higher. Is that at all the same thing you are referring to? How do you get a CF from your CGM reading? --- _[View the full topic](https://forum.fudiabetes.org/t/isig-and-calibration-factor-using-my-sensor-raw-data-as-part-of-blood-sugar-management/4099)._