what is the end result of the calvin cycle

The main end result of the Calvin cycle is the production of glucose.
The Calvin cycle is part of the overall process of photosynthesis. It is sometimes referred to as the "dark reaction" or the "light-independent reaction." This is because it is not dependent on light energy. It uses the ATP that is generated from the light reactions as its energy source. This is why the Calvin cycle is light-independent. The Calvin cycle takes place in the stroma of the chloroplast. Carbon dioxide will enter the leaf through pores called stomata. The gas will then diffuse into the stroma, where the Calvin cycle will occur. From here, the carbon atoms from the carbon dioxide are "fixed" and used to eventually build a glucose molecule. The carbons are first used to make 3-phosphoglyceric acid (3-PGA). That will then be converted into molecules of a three-carbon sugar, glyceraldehyde-3-phosphate (G3P). The G3P molecules are then used to make glucose. Because some of the molecules are being recycled back into the Calvin cycle, it actually takes six "turns" of the cycle in order to produce one glucose molecule.
http://hyperphysics.phy-astr.gsu.edu/hbase/Biology/calvin.html