Surface Area Calculator
Use the calculators below to calculate the surface area of several common shapes.
Ball Surface Area

Cone Surface Area

Cube Surface Area

Cylindrical Tank Surface Area

Rectangular Tank Surface Area

Capsule Surface Area

Cap Surface Area
Please provide any two values below to calculate.

Conical Frustum Surface Area

Ellipsoid Surface Area

Square Pyramid Surface Area

Surface Area Formulas of Simple Shapes
Ball

Surface Area = 4πr^{2}
where r is the radius
Cone

Base Surface Area = πr^{2}
Lateral Surface Area = πr√r^{2}+h^{2}
Total Surface Area = πr(r + √r^{2}+h^{2})
where r is the radius of the base, h is the height
Cube

Surface Area = 6a^{2}
where a is the edge length
Cylinder

Base Surface Area = 2πr^{2}
Lateral Surface Area = 2πrh
Total Surface Area = 2πr(r + h)
where r is the radius of the base, h is the height
Rectangular

Surface Area = 2ab + 2ac + 2bc
where a, b, and c are the length of the three edges
Capsule

End Surface Area = 4πr^{2}
Lateral Surface Area = 2πrh
Total Surface Area = 2πr(2r + h)
where r is radius of the base, h is the height
Ball Cap

Cap Surface Area = 2πhR
Base Surface Area = πhr^{2}
Total Surface Area = 2πhR + πhr^{2}
where R is radius of the ball, r is the radius of the base, h is the height
Conical Frustum

Ends Surface Area = π(R^{2} + r^{2})
Lateral Surface Area = π(R + r)√(R  r)^{2} + h^{2}
Total Surface Area = π(R^{2} + r^{2}) + π(R + r)√(R  r)^{2} + h^{2}
where R and r are radius of the two side, h is the height
Ellipsoid

Surface Area ≈ 4π(((ab)^{1.6} + (ac)^{1.6} + (bc)^{1.6})/3)^{1/1.6}
where a, b, and c are length of the three axis
Square Pyramid

Base Surface Area = a^{2}
Lateral Surface Area = 2a√(a/2)^{2} + h^{2}
Total Surface Area = a^{2} + 2a√(a/2)^{2} + h^{2}
where a is the edge length of the base, h is the height
Common Area Units
Unit  meter^{2} 
kilometer^{2}  1,000,000 
centimeter^{2}  0.0001 
millimeter^{2}  0.000001 
micrometer^{2}  0.000000000001 
hectare  10,000 
mile^{2}  2,589,990 
yard^{2}  0.83613 
foot^{2}  0.092903 
inch^{2}  0.00064516 
acre  4,046.86 