A Hemisphere is obtained when we cut the sphere into two equal halves .The base is in circular shape here .Hemisphere has its own properties which can calculate through this calculator.

Select Which value you are providing (radius (r), Volume (V), Base Circumference (C), Total surface area (K), Cured surface area (A)) input value and click on Calculate.

##### Hemisphere

r=Radius

V=Volume

C=Base Circumference

B=Base surface area

K=Total surface area

A=Cured surface area

Calculation Options

Outer Circumference

C_{1} =

Inner Circumference

C_{2} =

Outer Surface Area

L_{1} =

Inner Surface Area

L_{2} =

A Tube Calculator Helps us to calculate different properties of tube or pipe.Annulus is the example of Tube Shape. Using Tube Calculator we can get the value of Outer Radius(r1) , Inner Radius(r2) , Height(h) , Outer Surface Area(L1), Inner Surface Area(L2),End Surface Area(A), Volume in Solid(V) , Volume within C1(V1) , Volume within C2(V2) , Inner Circumference(C1), Outer Circumference(C) , Wall Thickness(t). We can get the value of Nine unknown variables only if values of three variables are known . By using following formula :

**Circumference:**
C = 2pr

Where

C = Circumference

r = Radius

** Outer Circumference:**
C_{1} = 2pr_{1}

Where

C_{1} = Outer Circumference

r_{1} = Outer Radius

**Inner Circumference:**
C_{2} = 2pr_{2}

Where

C_{2} = Inner Circumference

r_{2} = Inner Radius

**Surface Area:**
L = 2prh

Where

L = Surface Area

r = Radius

h = Height

** Outer Surface Area:**
L_{1} = 2pr_{1}h_{1}

Where

L_{1} = Outer Surface Area

r_{1} = Outer Radius

h_{1} = Outer Height

**Inner Surface Area:**
L_{2} = 2pr_{2}h_{2}

Where

L_{2} = Inner Surface Area

r_{2} = Inner Radius

h_{2} = Inner Height

**End Surface Area:**
A = A_{1}-A_{2}

Where

A_{1} = Area Enclosed by C_{1}

A_{2} = Area Enclosed by C_{2}

** Area Enclosed Within C**_{1}:
A_{1} = 2pr_{1}^{2}

Where

V_{1} = Area within C_{2}

r_{1} = Inner Radius

** Area Enclosed Within C**_{2}:
A_{2} = 2pr_{2}^{2}

Where

A_{2} = Area within C_{2}

r_{2} = Inner Radius

**Volume of Solid:**
V = V_{1} - V_{2}

Where

V_{1} = Volume within C_{1}

V_{2} = Volume within C_{2}

** Volume Enclosed Within C**_{1}:
V_{1} = pr_{1}^{2}h

Where

V_{1} = Volume within C_{1}

r_{1} = Outer Radius

h_{1} = Outer Height

** Volume Enclosed Within C**_{2}:
V_{2} = pr_{2}^{2}h

Where

V_{2} = Volume within C_{2}

r_{2} = Inner Radius

h_{2} = Inner Height

**Wall Thickness :**
t = r_{1} - r_{2}

Where

r_{1} = Outer Radius

r_{2} = Inner Radius

### How to use Tube Calculator?

Step by step procedure for Tube Calculator is as follows.

**Step 1: **Select which value you will be providing? Dropdown list has{ Outer Radius(r1) , Inner Radius(r2) , Height(h)} , {Outer Circumference(C1) , Inner Circumference(C2) , Height(h)} , {Outer Radius(r1) , Wall Thickness(t) , Height(h)} , {Outer Circumference(C1), Wall Thickness(t) , Height(h)} , {Outer Circumference(C1) , Inner Circumference(C2) , Volume(V)} , {Outer Radius(r1) , Inner Radius(r2) , Volume(V)} , {Outer Radius(r1) , Wall Thickness(t) , Volume(V)} , {Outer Circumference(C1) , Wall Thickness(t) , Volume(V)} etc .

**Step 2: **Input appropriate value as per selected type in Step 1.

**Step 3: **Now click on "Compute" button to get result.

You will get Outer Radius(r1) , Inner Radius(r2) , Height(h) , Outer Surface Area(L1), Inner Surface Area(L2),End Surface Area(A), Volume in Solid(V) , Volume within C1(V1) , Volume within C2(V2) , Inner Circumference(C1), Outer Circumference(C) , Wall Thickness(t) as per your value input.