Pyramid Calculator
Find the volume and surface area of a square pyramid, or of a square frustum (a pyramid with the top cut off parallel to the base).
Inputs explained
- Solid type — Full square pyramid, or a frustum (truncated pyramid).
- Base side length — Side length of the square base.
- Top side length — Side length of the smaller top square (frustum only). Must be smaller than the base side.
- Height — Perpendicular height of the solid.
How to use it
- Fill in the fields above — each input has a hint describing exactly what to enter
- Press Calculate to get your result instantly, right on this page
- Copy the result, save the tool to favorites, or share and embed it anywhere
Understanding the result
Example: A square pyramid with base side 6 and height 4 has volume 48; a frustum with base 6, top 4, and height 3 has volume 76.
Frequently asked questions
What is the difference between a pyramid and a frustum in this calculator? A pyramid comes to a single point at the top, while a frustum is a pyramid with the top sliced off parallel to the base, leaving a smaller flat top face instead of an apex. Selecting frustum adds a top side length field and changes the volume and surface area formulas accordingly.
Does this calculator work for pyramids with a rectangular or triangular base? No, it assumes a square base (and a square top for frustums), using a single side-length input for each. A pyramid with a rectangular or non-square base would need different length and width inputs and is not supported here.
Is the Pyramid Calculator free to use? Yes — it is completely free, with no sign-up, no download and no usage limits. You can use it as often as you need.
Is my data private? Yes. The calculation runs entirely in your browser — the values you enter are never sent to our servers, stored or shared with anyone.
What information do I need? Just the following: Solid type, Base side length, Top side length, Height. Each field includes a hint explaining exactly what to enter.
Can I use it on my phone? Yes — the tool is fully responsive and works on any device, and the same calculator is available in the EasyWorkCalcs mobile app.
Privacy
Everything you enter into the Pyramid Calculator is processed entirely in your browser. Nothing is uploaded, stored or shared — your data stays on your device.