r =
Radius of the cylinder or hemisphere part of the capsule since both will be the same
a =
Length or height of the cylinder potion
SA =
Surface area of the capsule in square units
Choose the number of decimals to show in your answer. This is also known as significant figures. Select an appropriate amount of significant figures based on the precision of the input numbers.
The surface area of a capsule can be derived from the formula for a cylinder plus the surface area of a sphere: V = 2PIr(2r + a)Capsule Surface Area Formula