The question
There are a lot of LEGO pieces in the world. The Great Pyramid of Giza is one of the biggest things people have ever built. So here's a fair question: if you could gather every LEGO piece on Earth, would there be enough to build a full-size copy of the pyramid?
To answer it you need three numbers. How much space the pyramid takes up. How much space one LEGO piece takes up. And how many pieces exist.
Step 1: the volume of the pyramid
The volume of any pyramid is one third of the area of its base times its height. The third is there because a pyramid fills exactly one third of the box it sits inside.
The Great Pyramid's base is a square about 756 feet on each side. Its area is 756 × 756 = 571,536 square feet, or about 572,000. The pyramid stands about 454 feet tall today. It was about 481 feet when it was built, but we're copying it as it stands now.
⅓ × 571,536 × 454 ≈ 86.5 million cubic feet
We'll build it solid, with no rooms or tunnels inside, just like a pile of stone.
Step 2: the size of an average LEGO piece
Not every piece is a classic brick. Sets are full of thin plates, flat tiles, small slopes, Technic pins and minifigure parts. So the right question is what the average piece looks like.
To find out, the video used Rebrickable, a site that keeps parts lists for LEGO sets. It pulled every set released from 2015 to 2025, about 13,400 sets, and counted every piece in them except the spares. That's about 2.5 million pieces. For each part, its size when stacked came from its name. A "Brick 2 x 4" is 2 studs by 4 studs and one brick tall. Parts with no size in the name got a low, middle and high estimate.
The standard 2×4 brick makes a good unit. It is 32 millimeters long, 16 wide and 9.6 tall when stacked, which works out to about 0.30 cubic inches. The average piece in all those sets comes to about 0.34 of that brick, or roughly one third.
0.34 × 0.30 in³ ≈ 0.1 cubic inches per piece
Why so small? Plates and tiles are almost half of all the pieces counted, and a plate is only a third as tall as a brick. The range from the low to the high size estimates was narrow, from 0.336 to 0.344 of a 2×4.
Step 3: how many pieces it takes
Now the two volumes need the same unit. A cubic foot is 12 × 12 × 12 = 1,728 cubic inches. So the pyramid holds about 86.5 million × 1,728, or about 149.5 billion cubic inches.
Divide by the size of one piece, using the unrounded value of about 0.102 cubic inches:
149.5 billion ÷ 0.102 ≈ 1.5 trillion pieces
This assumes the pieces stack perfectly, with no gaps between them. Real odd-shaped pieces would leave holes, so if anything you'd need more.
Step 4: how many exist
Nobody has an exact count, so this part rests on estimates. A recent one, quoted by Marketplace in December 2025, puts the number of LEGO pieces ever made at about 1.1 trillion.
1.1 trillion ÷ 1.47 trillion ≈ 75%
So all the LEGO on Earth would fill about three quarters of the pyramid. That sounds close to done, but there's a twist. A pyramid is widest at the bottom, so most of its volume is down low. Fill 75% of the volume from the ground up and you only reach about 37% of the height. The finished part would look like a wide, flat base with the whole pointed top still missing.
When there will be enough
The most often cited figure for LEGO's production is about 36 billion pieces a year. It isn't an official number, but it's the one most reports use. The shortfall is about 1.47 trillion minus 1.1 trillion, or about 370 billion pieces.
370 billion ÷ 36 billion per year ≈ 10 years
At that rate, in about ten years there should be enough LEGO in the world to build a full-size Great Pyramid.
What it means
Of course, nobody could actually do it. You would need every piece ever made, including the ones lost under couches and sitting in landfills, all gathered in one desert. The point is the scale. The pyramid took a whole civilization to build out of stone. A toy company has made enough plastic pieces to fill three quarters of it, and it adds billions more every year.
The answer for today is no, but only by about a quarter. Each year the gap gets smaller.
Sources: Great Pyramid dimensions (756 ft base, 454 ft current height); piece sizes from Rebrickable set inventories (rebrickable.com/downloads), sets from 2015 to 2025; 1.1 trillion pieces made, estimate quoted by Marketplace (December 2025); 36 billion pieces a year, the most-cited production figure, unofficial.