How to use the regular octahedron calculator
Find the volume and surface area of a regular octahedron from its edge length. Enter edge length in the field above; the volume, surface area are computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “octahedron volume”, “octahedron surface area”, “eight faced solid”, “calculate regular octahedron”, “find volume”.
Formula
Variables
- a — Edge length (cm)
Worked example
With edge length = 4 cm, the calculator gives volume ≈ 30.16989 cm³; surface area ≈ 55.42563 cm².
Frequently asked questions
What is the regular octahedron calculator used for?
Find the volume and surface area of a regular octahedron from its edge length. It helps with questions such as “octahedron volume”, “octahedron surface area”, “eight faced solid”.
What is the formula for the regular octahedron calculation?
Volume (cm³) = √(2) / 3 × a^3. Surface area (cm²) = 2 × √(3) × a × a. Here a is edge length (cm).
What inputs do I need for the regular octahedron calculator?
You need edge length in cm. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the regular octahedron calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the regular octahedron result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.