Online Calculator Resource

# Surface Area Calculator

Surface Area Calculator

S =

## Square Pyramid Shape

h = height
s = slant height
a = side length
e = lateral edge length
r = a/2
V = volume
L = lateral surface area
B = base surface area
S = total surface area

Calculate more with
Pyramid Calculator

## Calculator Use

Online calculator to calculate the surface area of geometric solids including a capsule, cone, frustum, cube, cylinder, hemisphere, pyramid, rectangular prism, sphere and spherical cap.

* Units: Note that units are shown for convenience but do not affect the calculations.  The units are in place to give an indication of the order of the results such as ft, ft2 or ft3.  For example, if you are starting with mm and you know r and h in mm, your calculations will result with V in mm3 and S in mm2.

Below are the standard formulas for surface area.

## Surface Area Formulas:

### Capsule Surface Area

• Volume = πr2((4/3)r + a)
• Surface Area = 2πr(2r + a)

### Circular Cone Surface Area

• Volume = (1/3)πr2h
• Lateral Surface Area = πrs = πr√(r2 + h2)
• Base Surface Area = πr2
• Total Surface Area
= L + B = πrs + πr2 = πr(s + r) = πr(r + √(r2 + h2))

### Circular Cylinder Surface Area

• Volume = πr2h
• Top Surface Area = πr2
• Bottom Surface Area = πr2
• Total Surface Area
= L + T + B = 2πrh + 2(πr2) = 2πr(h+r)

### Conical Frustum Surface Area

• Volume = (1/3)πh (r12 + r22 + (r1 * r2))
• Lateral Surface Area
= π(r1 + r2)s = π(r1 + r2)√((r1 - r2)2 + h2)
• Top Surface Area = πr12
• Base Surface Area = πr22
• Total Surface Area
= π(r12 + r22 + (r1 * r2) * s)
= π[ r12 + r22 + (r1 * r2) * √((r1 - r2)2 + h2) ]

### Cube Surface Area

• Volume = a3
• Surface Area = 6a2

### Hemisphere Surface Area

• Volume = (2/3)πr3
• Curved Surface Area = 2πr2
• Base Surface Area = πr2
• Total Surface Area= (2πr2) + (πr2) = 3πr2

### Pyramid Surface Area

• Volume = (1/3)a2h
• Lateral Surface Area = a√(a2 + 4h2)
• Base Surface Area = a2
• Total Surface Area
= L + B = a2 + a√(a2 + 4h2))
= a(a + √(a2 + 4h2))

### Rectangular Prism Surface Area

• Volume = lwh
• Surface Area = 2(lw + lh + wh)

### Sphere Surface Area

• Volume = (4/3)πr3
• Surface Area = 4πr2

### Spherical Cap Surface Area

• Volume = (1/3)πh2(3R - h)
• Surface Area = 2πRh

Cite this content, page or calculator as:

Furey, Edward "Surface Area Calculator"; from https://www.calculatorsoup.com - Online Calculator Resource.