Dr. K K Aggarwal, President Heart Care Foundation of India and Group Editor in Chief MEDtalks, will discuss the normal CRP levels in this video. When CRP is negative then a high sensitivity CRP test is advised. CRP levels can vary according to age, sex and races. There are formulas to calculate the levels. It is general age divided by 50 in males. In females, it is age divided by 50 plus 0.6. The normal value of CRP is less than 0.3 gram/dl is normal and more than 1 means inflammation. In between 0.3 to 1 is low grade inflammation.