Blood Type Calculator
Blood type Calculator - This is a free online calculator that recognizes the blood type you are. All you have to do is enter a few fields of information and click calculate. The Blood Type Calculator then will do the rest of the work and give you your blood type instantly.
To use the Blood Type Calculator follow these simple instructions.
The first thing to do is click on the grey down arrow next to the mother blood type and select what her blood type would be. There is A, B, AB, or O to select from. Next move to your right and click the grey down arrow and select either the + or - symbol for your mother's blood type.
Go down to the father blood type and click the grey down arrow and select A, B, AB, or O for his blood type. After selecting the correct blood type for your father, slide over to the right and click the grey down arrow and select the + or - symbol for the correct blood type for your father.
After doing this, click the pink CALCULATE button at the bottom of the blue box. This will instantly calculate the blood type and show you the percentages of the individual blood types you could have. If you have made a mistake, click the RESET ALL button and start over from the top at mother blood type.