You can calculate calcium from nutrition facts labels by using the daily value for calcium listed on the label. This is based on 1,000 milligrams of calcium per day. To calculate the amount of calcium in one serving, divide the number by 1000. You will need to know the serving size to get the right percent daily value for calcium. This process can be confusing if you don’t have the proper tool.
What Is Calcium?
Calcium is the most prevalent mineral in the human body, accounting for 1 to 2% of total body weight.