Mount Everest stands 8,848.86 meters (29,031.7 feet) above sea level. That figure is the official height agreed by China and Nepal in their 2020 joint survey, and it is the number every map, atlas, and encyclopedia uses today.
It is hard to overstate what that number means. Everest rises almost five and a half miles into the sky — high enough that commercial jets cruise above its summit, and high enough that the air at the top holds only a fraction of the oxygen found at sea level. For nearly two centuries, surveyors, climbers, and scientists have argued over the exact figure, remeasuring it with ever-better tools. This guide covers the official height, how it was measured, how Everest compares with K2 and the other 8,000-meter giants, the base camps and altitude zones climbers pass through, and a few famous comparisons that make 29,031.7 feet feel real.
Ask ten people how tall Everest is and most will say “about 29,000 feet” — close, but the real number is more precise and far more interesting. Behind those six digits sits a story of empires and satellites, of two countries sharing one mountain, and of a summit so high that the sky above it darkens toward the black of near-space. Whether you are settling a bet, helping with homework, or simply curious, here is the complete picture, measured and verified.
Everest Height at a Glance: Meters to Feet
Most of the world talks about Everest in meters, while American climbers and media use feet. This chart converts the key altitudes so whichever unit you think in, the numbers stay straight.
| Altitude | Meters | Feet |
|---|---|---|
| Summit (official, 2020) | 8,848.86 m | 29,031.7 ft |
| K2 | 8,611 m | 28,251 ft |
| Death zone threshold | 8,000 m | 26,247 ft |
| One kilometer | 1,000 m | 3,281 ft |
The 2020 figure measures to the top of the snow cap, not the rock underneath — ground-penetrating radar let the survey team measure the snow depth separately, a detail older surveys could only estimate. That is one reason the official number has shifted slightly over the decades: better tools, sharper answers.
Keep this chart handy as you read. Every comparison below — K2, the death zone, airliners, skyscrapers — is built from these verified numbers, converted both ways so nothing gets lost between meters and feet.
1. The Official Height of Mount Everest
Everest sits exactly on the border between Nepal and China (Tibet), which is why its official height is a joint affair. In 2020, survey teams from both countries climbed the mountain, placed satellite-navigation receivers on the summit, and combined their data into a single number: 8,848.86 meters, or 29,031.7 feet. Both governments announced it together, ending years of competing figures.
Before that agreement, the two countries quoted slightly different figures, partly because one measured to the top of the snow and the other to the rock beneath it. The 2020 survey settled the debate by measuring the snow depth directly and publishing a single official number. When you see Everest’s height quoted anywhere reputable today, 8,848.86 meters is the figure behind it.
Eight thousand eight hundred forty-eight point eight six meters. Say it out loud and it sounds almost absurdly precise for a pile of rock and ice — but that precision is the point. The 2020 survey did not estimate or round; it combined satellite positioning, ground radar, and months of calculation. The “.86” matters because when two nations share a mountain, “about 8,849 meters” is not diplomatic enough.
“Above sea level” is doing quiet work in that sentence, too. Everest’s height is measured from the average level of the ocean — the same zero point used for every mountain on Earth. That shared baseline is what makes the comparison with K2, or with any other peak, meaningful: same ruler, same starting line, no arguments about where zero sits.
The mountain wears three names. The British survey christened it Everest after a former surveyor-general, but it was already Sagarmatha in Nepal and Chomolungma in Tibet — names far older than any theodolite. All three refer to the same 8,848.86 meters of rock and ice.
2. Everest vs K2 and the Other 8,000-Meter Peaks
Everest is the tallest, but it is not alone at the top of the world. Fourteen mountains on Earth rise above 8,000 meters, nearly all of them clustered in the Himalaya and Karakoram ranges. K2, the second-tallest, is the only real rival — and even it falls about 780 feet short of Everest’s summit.
| Peak | Height | How it compares with Everest |
|---|---|---|
| Mount Everest | 8,848.86 m (29,031.7 ft) | The benchmark — the tallest mountain on Earth |
| K2 | 8,611 m (28,251 ft) | The runner-up, about 780 ft shorter |
| Kangchenjunga | Above 8,000 m | The world’s third-highest peak |
| Lhotse | Above 8,000 m | Everest’s close neighbor, the fourth-highest |
| Makalu | Above 8,000 m | Fifth-highest, a striking pyramid of rock and ice |
| Cho Oyu | Above 8,000 m | Sixth-highest, standing west of Everest |
| Death zone line | 8,000 m (26,247 ft) | The altitude above which the body cannot recover |
Notice the gap at the very top: Everest clears K2 by about 780 feet — a bigger margin than most people expect from the world’s two tallest mountains. Below K2, the other 8,000-meter peaks step downward in a long staircase, each one still tall enough to humble every mountain outside Asia.
The fourteen 8,000-meter peaks are mountaineering’s most exclusive club, and every member stands in Asia. Climbers who summit all fourteen join a list so short that every name on it is famous in climbing circles — a testament to how thin the air gets up there and how little room for error these mountains allow.
Geography explains the pecking order. The Indian tectonic plate is still driving into Asia, crumpling the crust upward in the same slow collision that built the entire Himalayan wall. Everest simply sits where the crumple runs highest. K2, standing apart in the Karakoram range to the northwest, is the tallest thing for hundreds of miles in any direction — second overall only because Everest exists.
Climbers call K2 the Savage Mountain, and it has long been considered the deadlier climb — but neither reputation changes the tape measure. By every official survey, Everest remains the highest point on Earth, and K2 remains about 780 feet below it.
3. How the World’s Tallest Mountain Was Measured
You cannot stretch a tape measure to the top of Everest, so surveyors have always measured it indirectly. In the nineteenth century, British survey teams used triangulation: measuring a precise baseline on the plains of India, then sighting the peak through telescopes from up to a hundred miles away and calculating the height with trigonometry. It was slow, painstaking work — and it still produced a remarkably accurate answer.
Those early surveyors deserve a moment of awe. Working with brass telescopes, measuring chains, and logarithm tables, the teams of the Great Trigonometrical Survey of India spent years triangulating the Himalaya from the plains below. They could not climb the peaks — the mountains were closed to them — so they measured angles from enormous distances and did the mathematics by hand. Their answer stood, barely corrected, for more than a century.
Modern surveys work differently. In 2020, Chinese and Nepali teams carried satellite-navigation receivers to the summit, recording precise positions from orbit while ground-penetrating radar measured how deep the snow lay over the rock. Combining space-age positioning with old-fashioned on-the-ground effort is what produced the official figure both countries now stand behind: 8,848.86 meters.
What changed was not the mountain but the ruler. Satellite navigation can now pin a point on the summit from orbit, and radar can see through snow to the rock below. The 2020 teams even accounted for subtleties like the curvature of the Earth and the local shape of sea level beneath a mountain that massive — refinements the telescope crews of the 1800s could never have attempted.
The number can still creep. The Himalaya are being pushed upward as tectonic plates collide, and major earthquakes can shift the summit by small amounts — which is one reason both countries revisit the measurement from time to time. For now, though, 8,848.86 meters is the height on every official map.
4. Base Camps: Where Every Expedition Begins
Nobody climbs Everest in one push. Every expedition starts at a base camp — really a small temporary town of tents, kitchens, and supply dumps — where climbers spend weeks hauling loads higher and returning to rest. There are two main ones: South Base Camp in Nepal, reached by the famous trek through Sherpa villages, and North Base Camp in Tibet, reached by road. Both sit on glaciers, both buzz with hundreds of climbers each spring, and both exist for the same reason: the human body needs time to adapt to altitude.
That adaptation has a hard limit, which is what makes the upper mountain so dangerous. Up to a point, red blood cells multiply and breathing deepens; the body copes. But the survey line at 8,000 meters marks where coping stops. Above it — the Death Zone — no amount of time helps. Climbers pass through as quickly as they can, usually breathing bottled oxygen, because the mountain is slowly shutting their bodies down.
This is also why expeditions take two months for a climb that, on paper, is only a few vertical miles. The schedule is not about distance; it is about biology. Climb high, sleep low, repeat — until the body is ready or a window of calm weather opens. Patience, more than strength, is the currency of Everest.
5. Altitude Zones: From the Trek In to the Summit
Climbing Everest is really a journey through stacked climate zones, each one harsher than the last. Expedition teams spend weeks moving between camps, letting their bodies adapt, because above 8,000 meters — the Death Zone — the human body can no longer acclimatize at all. Here is how the mountain is divided, from the trek in to the summit.
| Zone | What it is like |
|---|---|
| The trek in | Forested valleys and Sherpa villages far below the snowline |
| Base Camp | The expedition staging ground on the glacier |
| The Khumbu Icefall | A shifting maze of towering ice blocks and crevasses |
| The Western Cwm | A broad, silent glacial valley walled in by peaks |
| The Lhotse Face | A vast, steep wall of blue ice |
| The South Col | A windswept saddle holding the highest camp |
| The summit ridge | The narrow final climb along the roof of the world |
| The summit | 8,848.86 m (29,031.7 ft) — the highest point on Earth |
Each zone has its own personality, and veteran climbers talk about them the way sailors talk about stretches of ocean. The Icefall is the most feared — a tumbling glacier that shifts daily. The Western Cwm is eerily calm, a vast sun-trap of a valley. The Lhotse Face is a grind of steep blue ice. And the South Col, the last camp, is a bleak saddle where nothing lives and storms arrive without warning.
The Death Zone deserves its name. Above 8,000 meters — about 26,247 feet — the air is so thin that the body starts deteriorating faster than it can recover, no matter how fit the climber. That is why summit pushes are timed in tight weather windows and why supplemental oxygen is standard: up there, every minute counts.
The air tells the story most vividly. At sea level every breath delivers a full share of oxygen; at the summit each breath carries roughly a third of that. Climbers describe thinking through cotton wool and moving as if underwater — the body simply cannot run its chemistry on so little fuel. It is the most human-scale way to understand 29,031.7 feet: not as a number, but as a place where breathing itself becomes work.
6. Famous Height Comparisons: Making 29,031 Feet Feel Real
Numbers that big slide right off the brain, so it helps to stack Everest against things you know. Start smaller: our guide to picturing 80 feet shows how we break big heights into familiar chunks — and Everest would stack roughly 360 of those 80-foot lengths end to end.
Go smaller still: 10 feet is easy to picture — exactly the height of a regulation basketball rim. Everest’s summit stands nearly 3,000 of those 10-foot stacks above sea level. When a single number feels abstract, building it from familiar pieces is the oldest measurement trick there is.
Now the giants. Commercial airliners typically cruise around 35,000 feet — higher than Everest’s summit, which is why your flight into Kathmandu never worries about the mountain. And the Burj Khalifa, the tallest building on Earth at about 2,717 feet, would need to be stacked nearly eleven times to reach the summit.
Here is a final way to feel the scale: the gap between Everest and K2 alone — about 780 feet — is roughly the height of a 70-story building. The second-tallest mountain on Earth misses the summit by a skyscraper.
7. Frequently Asked Questions
How tall is Mount Everest?
Mount Everest is 8,848.86 meters (29,031.7 feet) tall, measured to the top of its snow cap. That is the official height agreed by China and Nepal in their 2020 joint survey.
How tall is Mount Everest in feet?
Everest stands 29,031.7 feet above sea level — almost five and a half miles straight up. It is the only mountain on Earth above 29,000 feet.
Why did Everest’s official height change?
Earlier surveys used older tools and measured slightly different things — some measured to the snow surface, others tried to reach the rock beneath. The 2020 joint survey measured the snow depth directly with radar and combined it with satellite positioning, producing the sharper 8,848.86-meter figure both countries now use.
What is the death zone on Mount Everest?
The death zone is everything above 8,000 meters (about 26,247 feet). Up there the air is too thin for the human body to acclimatize, so climbers can only survive for a limited time — usually with supplemental oxygen — before they must descend. This is also why summit bids launch only in narrow windows of calm weather.
Final Thoughts
Mount Everest’s official height — 8,848.86 meters, or 29,031.7 feet — is more than a trivia answer. It is a number two nations measured together, a line drawn with satellites and radar on the roof of the world. It towers about 780 feet above K2, its nearest rival, and it rises past the point where human lungs can cope, into a death zone above 8,000 meters that only the prepared dare enter. Whether you picture it as nearly 3,000 ten-foot stacks or as a summit that jets fly above, the scale stays humbling. And it is still being watched: survey teams will keep remeasuring as the Himalaya shift. Few numbers on Earth carry this much adventure. For more everyday measurement guides, browse our Measurements collection.
Hi, I’m Vera Lindqvist, a content writer at MeasuresIt.com, where I turn measurement standards, unit conversions, and precision tools into clear, practical guides. I care about getting the details right so you don’t have to second-guess them.
