Mother blood type O A B AB Rh+ Rh- Father blood type O A B AB Rh+ Rh- Calculate Chance for type A : Chance for type B : Chance for type AB : Chance for type O : Chance for type Rh+ : Chance for type Rh- : Age Gender Male Female Height (In Foot and Inch OR In CM) or Weight (In KG OR LBS) or Submit Age 14-18 19-30 31-50 50+ Gender Male Female Height (In Foot and Inch OR In CM) or Weight (In KG OR LBS) or Season Winter Normal Summer Activity level Lightly active Moderately active Very Active Submit