Facts about the Sphinx of Giza: The Verified Numbers

Fewer structures have so many numbers circulating around them as this one, and an astonishing portion of them are incorrectly copied.

This is due to its shape. A rectangular building can be measured clearly: length, width, height, done. With a recumbent figure, questions arise immediately. Does the tail count toward the length? Is the height measured to the crown or to the top edge of the headdress? Do you take the width at the front paws or at the hindquarters, where the figure is widest? Depending on the answer, the result shifts by several meters.

Added to this is the history of measurement itself. Older figures come from a time when the figure was still partially buried in sand, meaning the base point had to be estimated. Later surveys could include the bottom of the pit, resulting in greater heights. Therefore, if you place an old and a new number side by side, you often see not an error, but two different reference points.

This page therefore cites not only numbers, but also what they refer to. The values used are those that withstand re-measurement and are consistently listed in reference works.

The second part of the page addresses a question that rarely appears in fact sheets but is crucial for understanding the site on location: Which part of what you see is actually the rock from back then, and which part is repair work from later millennia? For hardly any other structure in the world is this proportion so high.

The record applies only with a caveat

The record is the point at which most lists become inaccurate, because there are larger statues and there are older sculptures.

The key is the restriction to a single stone. The largest monolithic sculpture in the world is not a composite figure nor a cast structure, but one worked entirely from a contiguous block of bedrock. Larger statues of modern times consist of segments, concrete, or reinforced concrete with cladding. If you remove this category, the statement loses its meaning.

It is also frequently read that this is the oldest monumental sculpture ever. A more cautious version is more reliable: It belongs to the oldest surviving large-scale sculptures and is the oldest of this magnitude that has remained continuously visible without interruption.

The direction of gaze, on the other hand, is undisputed and easy to verify: exactly east. On the two equinoxes in spring and autumn, the sun rises precisely in front of the figure. This is no accident and no secret, but a deliberate orientation, which was the rule for burial and cult buildings of this epoch.

Little is known about how carefully the figure was designed as a whole. The tail wraps around the right hind paw, the front legs are worked out down to the claws, and between them lies a small courtyard. If you only know the figure from the front, you might easily mistake it for a head on a box. Viewed from the side, it is a complete, anatomically thought-out animal figure, just on the scale of half a football field.

And another surprising detail: There is no inscription on the structure naming a builder. No name, no date, no dedication formula. Everything said about authorship and timing comes from the construction sequence with the neighboring structures.

Rock below, masonry outside

Thus for the most important distinction on this page. What you see on site consists of two very different things.

The core is living rock: the body, the neck, the head, the surrounding pit. These parts were cut out four and a half thousand years ago and have not been moved since. They show corresponding weathering, in band-like patterns because the rock layers have different hardness levels.

The outer skin of the lower half, however, is largely built-up masonry. Already in the New Kingdom, i.e., around a thousand years after its creation, cladding blocks were placed to support the crumbling trunk. Further campaigns followed in Greek-Roman times and then in several waves of modern times. The paws, which look so clearly defined in every photo, are almost entirely reconstructions in their current form.

This is not a scandal, but the norm for an object made of soft limestone outdoors. It is still important because many observations depend on it. If someone deduces age from the sharpness of an edge, they may be measuring a repair from the 20th century.

The approach to this has changed fundamentally. Earlier campaigns set new blocks with cement mortar, which was harder than the original rock and thereby exacerbated damage instead of curbing it. Modern conservation works with softer, adaptable mortars, documents every layer of stone used, and permanently monitors moisture and salt content. The principle is that a repair should be recognizable and removable. Precisely for this reason, the newer blocks are deliberately not matched to the tone of the original.

A rule of thumb helps on site: The smoother and more regular a surface looks, and the more distinct individual block joints are, the younger it is. The original rock is irregular, banded, and jointless because it never consisted of blocks.

Three artifacts that you can touch

Three artifacts belong to the most reliable factual statements possible, because you can touch them.

The first is in London. A fragment of the beard is located in the British Museum, well over 34 centimeters high and about 15 centimeters thick. Remarkable about this find is less the location than the dating: The beard was not an addition by the builders, but was likely attached only in the New Kingdom during a restoration, and fell off later. Further fragments lie in Cairo. What this means for the original appearance is covered on a separate page.

The second is still on site: a stone stele between the front paws, erected by a king of the 18th Dynasty in the first year of his reign, according to common dating 1401 BC. It is thus around eleven hundred years younger than the figure itself and reports on a cleaning of the silted-up structure. There is also a separate page for this.

The third is not a single piece, but a layer: the sand. The pit fills up by itself, and for most of the past four and a half thousand years, the figure lay in it up to its shoulders. Several rulers had it uncovered, after which the sand returned again. Complete and permanent excavation was only achieved in the 1920s.

The sand also explains the uneven state of preservation, independent of the rock layering. The head protruded for most of the time and was exposed to wind, sand abrasion, and temperature changes. The trunk was buried and thus protected, but was exposed to weathering again with every excavation and dried out differently. Both parts therefore have very different stress histories behind them, and both effects overlap with the hardness of the respective bank.

These three together create a picture that fact sheets rarely convey: For large stretches of its history, the Sphinx was not a landmark, but a half-buried rock that someone occasionally tended to.

Figures that are regularly cited incorrectly

Finally, a few figures that are regularly cited incorrectly, with the respective reliable version.

The Sphinx is not built from blocks, but it is also not completely from one piece: The core is a contiguous rock, attached parts like paws and cladding consist of individual blocks. So both statements are true, depending on what you point to.

It is not the oldest structure on the site. The Great Pyramid is, according to common dating, a generation older, and the necropolis around it was already in use beforehand.

It is not unique in Egypt. There are sphinxes in large numbers, including as avenues in front of temples. This one is the largest and the oldest known in this architectural form, hence the addition in the name.

And it is not an independent monument, but part of a complex. Immediately to the east stand two temples, and the figure lies at the end of a processional way. The entire surroundings have been under protection together since 1979.

And the face is not a secured portrait. It is traditionally associated with the patron of the middle pyramid, but a comparison with preserved statues of this king is only limitedly possible due to weathering and later repairs. Investigations into this yield different results. It is reliable that a king's head is depicted, recognizable by the headdress and the uraeus. Which king is an attribution.

Therefore, anyone passing on the numbers from this page should provide the reference size. Twenty meters of height say little, as long as it is not clear that the figure sits in an excavated pit and this height is measured from the bottom of the pit.

Frequently asked questions

What is the Sphinx of Giza?

A figure cut from the bedrock with a lion's body and a king's head, 73.5 meters long and 20.22 meters high, created according to common dating around 2500 BC on the eastern edge of the plateau.

How big is it exactly?

73.5 meters long, 20.22 meters high, and 19.3 meters wide at the hindquarters. The height is measured from the bottom of the excavated pit.

Is it really made from one piece?

The core yes. Paws, base, and the lower flank today consist of attached masonry from various eras.

Why does it look east?

Because the sun rises there. For burial and cult buildings of this time, orientation to the east was the rule.

Is there an inscription by the builder?

No. No name and no date can be found on the structure itself. The assignment results from the construction sequence with the neighboring structures.