Regular Dodecahedron Calculator

Use this Regular Dodecahedron Calculator to calculate the volume and surface area of a dodecahedron based on its edge length.

Formulas

Volume V = (1/4) × (15 + 7√5) × a³
Surface Area S = 3 × √25 + 10√5 × a²

a = edge length
V = volume of the dodecahedron
S = surface area of the dodecahedron

Popular Examples

Edge Length (a)VolumeSurface Area
17.66311820.645729
261.30494482.582918
3206.223531185.811561
41229.030944330.331672
5479.444218514.143225

How To Calculate Without A Calculator

1. Measure the edge length a.
2. Compute volume using V = (1/4) × (15 + 7√5) × a³.
3. Compute surface area using S = 3 × √25 + 10√5 × a².
4. Results give the dodecahedron volume and surface area manually.

About This Calculator

The Regular Dodecahedron Calculator gives accurate results up to six decimals for volume and surface area. Useful for geometry enthusiasts, students, and designers.

Interesting Facts

• A dodecahedron has 12 pentagonal faces.
• It is one of the five Platonic solids.
• The dual of a dodecahedron is the icosahedron.
• Appears in 3D modeling and crystallography.
• Each vertex joins three faces.