level 303Blood sugar 303 mgdl (16.81mmoll) - is that good or bad? We help you interpret your blood sugar values. You have tested your blood sugar and the result was 303 mgdl. ... To improveMore information about a total cholesterol level of 303. A total cholesterol level of 303 may be written on a lab report as 303 mgdL, or millrams per deciliter. This means there would be