Professional Tools

SURFACE AREA CALCULATOR

Calculate surface area and volume for 7 common 3D shapes. Ideal for estimating material, cladding, and fabrication costs for tanks, pipes, domes, and enclosures.

Switch to 2D Area Calculator Metal Weight Calculator

Unit:

Material:

Sheet Thickness:mm

Price / mm²:

Rectangular Box

Enclosures, cladding panels, ductwork

SA = 2(lw + wh + lh)

Length (l)mm

Width (w)mm

Height (h)mm

Cylinder

Tanks, columns, pipes, vessels

SA = 2πr(r + h)

Radius (r)mm

Height (h)mm

Cone

Hoppers, funnels, roof caps

SA = πr(r + √(r² + h²))

Radius (r)mm

Height (h)mm

Sphere

Dome structures, pressure vessels

SA = 4πr²

Radius (r)mm

Hemisphere

Dome caps, tank ends, architectural domes

SA = 3πr² (curved + base)

Radius (r)mm

Hollow Cylinder (Pipe)

Piping, tubes, hollow columns

SA = 2π(R+r)h + 2π(R²-r²)

Outer Radius (R)mm

Inner Radius (r)mm

Height (h)mm

Frustum (Truncated Cone)

Transition pieces, reducers, hoppers

SA = π(R² + r² + (R+r)×s)

Bottom Radius (R)mm

Top Radius (r)mm

Height (h)mm

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