CALCULATOR
Regular Tetrahedron Volume Calculator
Find regular tetrahedron volume from its equal edge length. Example: Equal edge length (all six edges): 2 m gives 0.942809041582 m³. Regular tetrahedron only: all six edges equal. Irregular tetrahedra require additional measurements and are outside this tool. Regular tetrahedron only: all six edges equal. Irregular tetrahedra deferred explicitly. Flat Euclidean geometry; enter stated meter measure
Regular tetrahedron only: all six edges equal. Irregular tetrahedra require additional measurements and are outside this tool. Regular tetrahedron only: all six edges equal. Irregular tetrahedra deferred explicitly. Flat Euclidean geometry; enter stated meter measurements. No material thickness, waste, structural recommendation or curved earth. Display rounding does not change calculation. Derivation: Equilateral base √3 a²/4 and altitude √(2/3)a; pyramid relation gives √2 a³/12.
Accepted inputs: Equal edge length (all six edges): 0.001 to 1,000 m.
regular tetrahedron volume from its equal edge length
How the calculation works
V = √2 edge³ /12
Worked example
With equal edge length (all six edges) 2 m, regular tetrahedron volume from its equal edge length is 0.9428090416 m³.
Assumptions and limits
Regular tetrahedron only: all six edges equal. Irregular tetrahedra require additional measurements and are outside this tool. Regular tetrahedron only: all six edges equal. Irregular tetrahedra deferred explicitly. Flat Euclidean geometry; enter stated meter measurements. No material thickness, waste, structural recommendation or curved earth. Display rounding does not change calculation. Derivation: Equilateral base √3 a²/4 and altitude √(2/3)a; pyramid relation gives √2 a³/12.