SURFACE AREAS & VOLUMES



How To Use:  Press Reset button. For one or more objects, type in the required dimensions, and press the Calculate button. It will give results for the selected objects for which complete dimensions are entered.

INPUT   DATA OUTPUT   VARIABLES  
Objects   Dimensions  
[L]
Volume 
[L]3
Curved Surface  
Area [L]2
Total Surface  
Area [L]2
Sphere     R:              
Cube     A:              
Parallelepiped     A:   B:   C:      
Cylinder     R:   H:          
Ellipsoid     A:   B:   C:      
Cone     A:   B:   H:      
Torus     A:   B:          


     Reset


THEORY  &   FORMULAE

Surface Area & Volumes Of Shaped Particles

The following formulas are used in calculating the areas and volumes:

    


Sphere:    V = [4/3]πR3,     S = 4πR2

Cube:    V = A3,     S = 6A2

Rectangular Parallelepiped:    V = ABC,     S = 2[AB + AC + BC]


Cylinder:    V = πR2H,     S = 2πRH,     S2 = 2πR[H + R]

Ellipsoid:    V = [4/3]πABC,     S ≈ 4π[(ApBp + ApCp + BpCp)/3]1/p,   p = 1.6075; {Knud Thomsen's formula}

Frustrum of a right Circular Cone:    V = [1/3]πH(A2 + AB + B2)],     S = π[A + B]√[(H2 + (B - A)2],     S2 = S + π[A2 + B2]; {for a right circular cone B = 0}

Torus:    V = [1/4]π2[A + B][B - A]2,     S = π2[B2 - A2]

where
     R = radius
     A,B,C = length, semi-axis length
     H = height
     V = volume of solid, length3
     S = area of surface (curved surface), length2
     S2 = total area of surface (curved plus flat)

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