How tall is Stonehenge (sarsen stone)?

How tall are the stones of Stonehenge?

The great uprights of Stonehenge's outer circle stand about 4.11 m (13 ft 6 in) above the ground, the figure this site uses for the monument. Each one is roughly 2.13 m (7 ft) wide and about 1.06 m (3 ft 6 in) thick, and they once carried a continuous ring of horizontal lintels whose tops sat about 4.9 m (16 ft) above the grass. Inside that ring stand the five trilithons, much taller pairs of stones capped with lintels, which rise from about 6 m (20 ft) at the ends of the horseshoe to about 7.3 m (24 ft) in the center.

"How tall is Stonehenge?" therefore depends on which stone you mean. This page uses an outer-circle sarsen because it is the typical, repeated element of the monument, the stone you see most often in photographs of the ring.

Above ground and below ground

Many heights quoted for Stonehenge disagree, and the main reason is buried stone. Every upright sits in a pit, and a significant part of its length is hidden. English Heritage gives the tallest standing stone, Stone 56, a total length of 8.71 m from base to tip, of which 2.13 m is underground. Guinness World Records describes the same stone as about 6.7 m (22 ft) high with a further 2.4 m (8 ft) below ground. Both describe the same monolith; they simply measured the buried part differently.

The same applies to the outer circle. The 4.11 m figure is the visible height. The full stones are longer, which is one reason they have survived thousands of years of wind, frost and visitors. Stone 56 itself shows what happens when the footing fails: it was leaning at a dangerous angle until engineers straightened and set it in concrete in 1901.

Sarsens, bluestones and one stone from Scotland

Stonehenge is built from two very different kinds of rock. The giant stones are sarsens, a hard silcrete sandstone found on the chalk downs of southern England. English Heritage says the average sarsen weighs about 25 tons, and the heaviest stones of all, the trilithon uprights, reach roughly 50 tons. For centuries their source was assumed rather than proved. In July 2020 a team led by the geomorphologist David Nash of the University of Brighton, including English Heritage historian Susan Greaney, published geochemical analysis in Science Advances showing that most of the sarsens match West Woods, on the edge of the Marlborough Downs about 15 miles (25 km) north of the monument. Of around 80 sarsens originally used, 52 remain at the site.

The smaller bluestones came from much farther away. English Heritage traces them to the Preseli Hills in south-west Wales, about 240 km away, and suggests they were probably moved largely by boat. They are about 2 m tall and up to about 1.5 m wide; up to 80 may once have stood at Stonehenge, and 43 can still be traced. The most surprising discovery came in 2024, when a study led by Curtin University matched the Altar Stone to the Orcadian Basin of north-east Scotland, roughly 690 km (430 miles) from Salisbury Plain.

Carpentry in stone

What sets Stonehenge apart from other stone circles is the way the stones were shaped and fitted. The builders treated the sarsens like timber. Each upright of the outer circle has knobs, or tenons, on top that fit into hollows, or mortises, cut into the underside of the lintels. The lintels were joined end to end with tongue-and-groove joints, so the ring held together as a single structure rather than a row of separate stones.

The precision is remarkable when you consider the scale. A lintel about 3.2 m long and 0.8 m thick had to be lifted more than 4 m into the air and lowered so that two mortises dropped neatly over the tenons of two separate uprights, which themselves had to stand at matching heights on uneven chalk. The tallest trilithon lintel sits more than 7 m above the ground. The builders achieved this level of fit without written plans, metal machinery or draft animals as far as archaeologists can tell, which is why the joints are often cited as the most sophisticated feature of the monument.

How Stonehenge was built, phase by phase

English Heritage's history describes a monument that grew over more than a thousand years:

• c. 3000 BC: a circular ditch with banks, about 100 m across, was dug with two entrances, and 56 pits known as the Aubrey Holes were set inside it. Around 64 cremation burials have been found, and perhaps 150 people were originally buried there.
• c. 2500 BC: the sarsens were raised in an outer circle and an inner horseshoe, with bluestones set in an arc between them, and four Station Stones were placed on the edge.
• 200–300 years later: the bluestones were rearranged into a circle and an inner oval, later altered into a horseshoe, and the Avenue linking the monument to the River Avon was built.
• 1800–1500 BC: two further rings of pits, the Y and Z holes, were dug, and some sarsens were carved with images of axe-heads and daggers.

The monument's main axis points to the sunrise at the summer solstice and the sunset at the winter solstice, an alignment that archaeologists agree was intentional.

Stonehenge compared with other monuments

At about 4.1 m, an outer sarsen is more than twice the height of an average adult, but small beside most of the monuments on this site. It is, however, almost exactly the height of an Easter Island moai.

Two prehistoric monuments from opposite sides of the world, built with stone tools by people who never met, ended up at almost the same scale. The difference is mass: a sarsen is a broad slab weighing about 25 tons, while Wikipedia gives a typical moai at around 12.5 tonnes. If you want to see a sarsen beside yourself, the 3D height comparison tool can place any landmark next to a person at your own height, and the landmarks hub lists them all from Mount Everest down.

Stonehenge beside Britain's other landmarks

Set beside the landmarks of modern Britain, the stones look small, but the comparison is still useful for picturing them. All heights below come from this site's landmark data.

The most telling comparison is not with towers but with time. Big Ben's clock tower was finished in 1859, and the Shard in 2012. When the sarsens were raised, around 2500 BC, the Great Pyramid of Giza was being built or had only just been completed, and the monument had already been a sacred enclosure for roughly 500 years.

Falls, repairs and re-erections

The Stonehenge seen today is partly the product of twentieth-century engineering. English Heritage records that an entire trilithon fell in 1797, and in 1900 an upright of the outer circle collapsed along with its lintel. In the 1880s some stones were propped with timber poles. Stone 56 was straightened in 1901, and in 1958 the fallen trilithon of 1797 was put back on its feet, along with Stone 57. The last stones were consolidated in concrete bases in 1964.

Ownership changed too. Cecil Chubb bought Stonehenge at auction in 1915 and gave it to the nation in 1918. The National Trust began acquiring the surrounding farmland in 1927, and in 1986 Stonehenge and nearby Avebury were inscribed together as a UNESCO World Heritage Site. The Stonehenge part of that site covers about 2,600 hectares. In July 2024 the UK government canceled a planned road tunnel for the busy A303, which passes close to the stones.

Visiting Stonehenge and seeing the stones up close

English Heritage manages the monument and asks visitors to book in advance. The site opens daily, typically from 9.30am to 5pm in the autumn season, with last entry in mid-afternoon. The visitor center, set well back from the stones so that the monument keeps its open landscape, has exhibitions and a full-size replica of a freestanding trilithon upright. Standing beside the replica is the easiest way to feel the scale of a sarsen, because general admission visitors view the real stones from a path around the circle rather than among them.

For a closer view, English Heritage runs separately booked Stone Circle Experience visits that take small groups inside the ring. The solstices are the other exception: the monument opens for managed access at sunrise in June and around the winter solstice, which in 2026 falls on 22 December. If you are converting the stone heights for a trip, the height converter will turn the meter figures above into feet and inches.

Why a 4-meter stone still impresses

Stonehenge is one of the shortest monuments on this site, yet it is among the most visited. Its stones do not impress by height alone but by what that height required: slabs of up to 50 tons, dragged 25 km over land or floated 240 km from Wales, raised upright in pits and then capped with lintels lifted 4 to 7 m into the air and locked together with carpentry joints. Measured against the human body, a sarsen is little more than twice a person's height. Measured against the tools available 4,500 years ago, the outer circle and its towering trilithons remain an extraordinary feat of engineering.