MegaDome Calculator

 This calculator is to be used with our MegaHub Dome Connectors designed for 1" or 1.5" PVC ONLY. If you are using our standard hubs, use the Standard Hub calculator.

All the lengths of pipe for the triangles that make up a geodesic dome are not the same. There are trigonometric equations used to calculate the different lengths, but to make it easy, we've incorporated all that into the simple calculator on this page. First, on this page, choose the complexity of the dome you want to build. If you don't know what 'frequency' means, or the difference between a '3V' and a '6V', go to the FAQ's page and that will explain it. Once you get to the next page, all you do is put the radius (not the diameter) of the dome you want to build into the open square, and then hit the 'calculate' button next to it. Below it, you'll see all the lengths for any frequency 2, 3, 4, 5, or 6 dome you want to build.

* Please note that in calculating the lengths of the struts, 4 inches has ALREADY been deducted to account for the width of the MegaHub Sonostar geohubs.

  • 2V Dome
  • 3V 3/8 Dome
  • 3V 5/8 Dome
  • 4V Dome
  • 5V 3/8 Dome
  • 5V 5/8 Dome
  • 6V Dome
Radius: ft.
Length (inch) Length (cm) Color Strut Count
A - - Blue 35
B - - Yellow 30
4 Star base hardcore geohub 10
5 Star hardcore geohub 6
6 Star hardcore geohub 10
Diameter -

Dome Calculator for 2V

Radius: ft.
Length (inch) Length (cm) Color Strut Count
A - - Yellow 30
B - - Blue 40
C - - Red 50
4 Star base hardcore geohub 15
5 Star hardcore geohub 6
6 Star hardcore geohub 25
Diameter -

Dome Calculator for 3V 3/8

Radius: ft.
Length (inch) Length (cm) Color Strut Count
A - - Yellow 30
B - - Blue 55
C - - Red 80
4 Star base hardcore geohub 15
5 Star hardcore geohub 6
6 Star hardcore geohub 40
Diameter -

Dome Calculator for 3V 5/8

Radius: ft.
Length (inch) Length (cm) Color Strut Count
A - - Yellow 30
B - - Red 30
C - - Blue 60
D - - Green 70
E - - Purple 30
F - - Orange 30
4 Star base hardcore geohub 20
5 Star hardcore geohub 6
6 Star hardcore geohub 65
Diameter -

Dome Calculator for 4V

Radius: ft.
Length (inch) Length (cm) Color Strut Count
A - - Yellow 30
B - - Blue 30
C - - Red 60
D - - Purple 70
E - - Green 70
F - - Orange 80
G - - Pink 35
H - - Tourquoise 30
I - - Brown 20
4 Star base hardcore geohub 25
5 Star hardcore geohub 6
6 Star hardcore geohub 120
Diameter -

Dome Calculator for 5V 3/8

Radius: ft.
Length (inch) Length (cm) Color Strut Count
A - - Yellow 60
B - - Blue 60
C - - Red 120
D - - Purple 120
E - - Green 120
F - - Orange 120
G - - Pink 60
H - - Tourquoise 60
I - - Brown 30
4 Star base hardcore geohub 25
5 Star hardcore geohub 6
6 Star hardcore geohub 265
Diameter -

Dome Calculator for 5V 5/8

Radius: ft.
Length (inch) Length (cm) Color Strut Count
A - - Yellow 30
B - - Blue 30
C - - Red 60
D - - Purple 90
E - - Green 30
F - - Orange 60
G - - Pink 130
H - - Tourquoise 65
I - - Brown 60
4 Star base hardcore geohub 30
5 Star hardcore geohub 6
6 Star hardcore geohub 160
Diameter -

Dome Calculator for 6V

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