Square Pyramid Volume Calculator

Whether you're a geometry student or a designer building a 3D structure, grasping how to calculate square pyramid volume is more useful than you might expect. These iconic shapes show up in everything from engineering blueprints to science fair projects. And when you’ve got a trusted Square Pyramid Volume Calculator, determining volume becomes quick, easy, and frustration-free. For other 3D shapes like cones, cylinders, or spheres, head to the Volume Calculator for a full set of quick tools.

What is the Volume of a Square Pyramid?

A square pyramid is a three-dimensional shape with a square base and four triangular sides that meet at a point at the top—the apex. It’s one of the most classic and easily recognized geometric forms, and its volume calculation is refreshingly simple once you know how it works.

Put simply, volume tells you how much space something occupies. For a square pyramid, that means figuring out the amount of “stuff” it could contain if it were filled. The volume formula is: 

Volume = (1/3) × base area × height

So, if you know the length of one side of the base (since it’s a square) and the vertical height from the base to the apex, you’re all set.

👉 Important: Don’t mistake the vertical height for the slant height. The height used in the formula must go straight up, not along the triangle’s side.

Try out Truncated Pyramid Volume Calculator

How to Calculate Square Pyramid Volume Manually

No advanced software required—you can manually calculate a square pyramid’s volume using just this simple formula and a few tools.

Formula: 

Volume = (1/3) × base area × height

Let’s walk through a step-by-step example.

Step 1: Measure the Base Side
The base is a square, so measure one side. If it’s 6 feet:

Base Area = side × side = 6 × 6 = 36 ft²

Step 2: Measure the Vertical Height
This is the straight line from the center of the base to the apex. Let’s say it's 9 feet.

Step 3: Use the Formula
Volume = (1/3) × 36 × 9 = 12 × 9 = 108 cubic feet

So, the volume of this square pyramid is 108 ft³.

💡 Pro tip: Want to skip the math? Use our Square Pyramid Volume Calculator—just plug in the base length and height. It's perfect for students, architects, DIYers, and anyone working with 3D shapes.

Also exploring cones or prisms? Try our Volume Calculator to simplify the math across multiple shapes.

Try out Circle Square Footage Calculator

A Farmer and the Great Pyramid’s Volume: A True Story

Back in the mid-1800s—long before lasers and 3D scans—British engineer Sir William Flinders Petrie became the first to accurately measure Egypt’s Great Pyramid of Giza. But centuries earlier, Arab scholars were already trying to estimate its volume—with no high-tech tools.

Why? Many believed the pyramid had once served as a massive granary, built by the biblical Joseph. To see how much grain it could theoretically store, they needed a volume estimate.

So, they turned to a local farmer. Using nothing more than a rope, a shadow, and a good sense of distance, he paced the base’s sides, eyeballed the height, and applied a rough form of the (1/3) × base area × height formula.

Amazingly, his guess wasn’t far off.

With today’s data, we know the Great Pyramid’s volume is roughly 2.6 million cubic meters, or about 92 million cubic feet—that’s around 3,700 Olympic-sized swimming pools. And yes, if you use a square pyramid volume calculator, you’ll get a result surprisingly close to what ancient minds estimated by hand.

While we’re no longer storing grain in pyramids, this historical tale reminds us how practical and powerful volume formulas truly are—even across millennia.

You’ll find this and dozens of other geometry helpers in our Math Tools section—made for both students and professionals.