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Math Calculators

Pyramid Frustum Volume Calculator

Verified formula Updated Jun 2026 Private — runs on your device

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units
units
units
Verified formula Private

Volume

210.0000

For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.

How to use the Pyramid Frustum Volume Calculator

The Pyramid Frustum Volume Calculator works out your volume in an instant. Enter bottom base edge (a), top base edge (b) and height and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.

  1. Enter the bottom base edge (a).
  2. Enter the top base edge (b).
  3. Enter the height.
  4. Read off your volume — the calculator updates automatically, with no button to press.

Formula

The Pyramid Frustum Volume Calculator uses the formula:

Volume = Height ÷ 3 × (Bottom base edge (a) ^ 2 + Bottom base edge (a) × Top base edge (b) + Top base edge (b) ^ 2)

Worked example

For example, with bottom base edge (a) of 6 units, top base edge (b) of 3 units and height of 10 units, the volume is 210.0000.

Inputs used
Bottom base edge (a) 6 units
Top base edge (b) 3 units
Height 10 units
Results
Volume 210.0000

Results are estimates for educational use, not professional advice.

Key terms explained

Volume
The amount of three-dimensional space an object occupies, measured in cubic units.

Frequently asked questions

Use V = h⁄3 × (a² + ab + b²) for a square frustum. With a = 6, b = 3 and height 10, the volume is 210 cubic units.

It is a pyramid with the top sliced off parallel to the base, leaving two square faces of different sizes.

This formula is for square bases. Other shapes use the general frustum formula with their own base areas.

It becomes a full pyramid and the formula reduces to ⅓ × base² × height.

The Pyramid Frustum Volume Calculator uses the formula: Volume = Height ÷ 3 × (Bottom base edge (a) ^ 2 + Bottom base edge (a) × Top base edge (b) + Top base edge (b) ^ 2). For example, with bottom base edge (a) of 6 units, top base edge (b) of 3 units and height of 10 units, the volume is 210.0000.

Enter the bottom base edge (a). Enter the top base edge (b). Enter the height. Read off your volume — the calculator updates automatically, with no button to press.

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