Geodesic Dome Calculator

Our geodesic dome calculator will calculate the length and number of struts for 2V, 3V, and 4V geodesic domes based on the specified radius. It's a useful tool for planning the size of your dome.


Numbers must be entered in decimal format, IE 10.5 feet, not 10 feet 6 inches.

Use the pulldown menu to choose your units.
Do not include units in the number field or no calculations will be returned.

Radius =

For more information on our work with geodesic domes see:

Construction of a Geodesic Dome

How We Made Our Geodesic Dome Cover

How To Assemble a Geodesic Dome

Additional Online Resources

Desert Domes - A fantastic online resource for dome builders and designers. Includes information for different types of domes, formulas, assembly advice, and much more. This site has been a huge help to us in our work with geodesic domes.

Books about geodesic domes and alternative shelter:

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