The 10 Highest Peaks in the World: Ranking, Altitude, and Secrets in 2026

The world's highest peaks form a breathtaking list: ten mountains all exceeding 8,000 meters in altitude, all concentrated along an arc of less than 2,500 kilometers between the Himalayas and the Karakoram. Nowhere else on Earth — not in the Andes, not in the Rockies, not even in other Asian mountain ranges — will you find a single summit approaching these altitudes. This is no geological coincidence: it is the result of a collision between the Indian and Eurasian tectonic plates that began 50 million years ago, and which continues to push these peaks upward by a few millimeters every year.

In this ranking of the world's highest peaks, you will find far more than numbers. Each mountain has its own story: a mortality rate that sometimes exceeds 25%, radically different approach routes, climbing windows as short as two weeks per year, and tales of exploration that transformed mountaineering into a global discipline. From Everest to Kangchenjunga and the formidable Nanga Parbat, here is everything you need to know about these giants of rock and ice, whether you are a seasoned alpinist or simply fascinated by the extremes of our planet. At Ryo, we believe that understanding these extraordinary places is the first step before setting out to explore them.

Everest is the highest mountain in the world, standing at 8,848.86 meters as measured in 2020 by a Sino-Nepali expedition that revised the official Chinese figure of 8,844 m and confirmed the Nepali measurement of 8,848 m. This precision down to a few decimal places may seem trivial, but it illustrates how this summit remains an object of scientific competition just as much as a sporting one.

The mountain is called Sagarmatha in Nepali ('forehead of the sky') and Chomolungma in Tibetan ('goddess mother of the world'). The name 'Everest' was assigned in 1865 by the Royal Geographical Society in honor of George Everest, former head of the Great Trigonometrical Survey of India — who, in a historical irony, opposed the use of his own name to designate mountains. The first documented attempt to climb it dates back to 1921, during the first British reconnaissance expedition. George Mallory, who took part in that expedition and again in 1922 and 1924, left behind the now-legendary phrase explaining his motivation: 'Because it's there.'

The first confirmed ascent was made by Edmund Hillary and Tenzing Norgay Sherpa on 29 May 1953, at 11:30 in the morning. Since then, more than 11,000 ascents have been recorded (in total, from all sides), by approximately 6,400 different climbers. Its popularization has transformed Everest: in 2023, more than 600 climbing permits were issued by the Nepali government for the spring season alone.

Two main routes are used. The South Col route (Nepali side), taken by Hillary and Tenzing, is today the most heavily trafficked. It passes through base camp at Khumbu (5,364 m), the Khumbu Icefall — one of the most dangerous sections, where seracs can collapse without warning — then Camps II, III, and IV before the final push. The North Face route (Tibet side) is longer and requires a separate permit issued by China, which has closed this side on several occasions for political or health reasons.

Everest's mortality rate is often misunderstood. It stands at around 1% of ascents (approximately 310 deaths since 1953), which is well below that of several other 8,000 m peaks. The primary cause of death is altitude itself (pulmonary or cerebral edema), followed by falls and avalanches. The 'death zone' begins above 8,000 meters: the body consumes more oxygen than it can absorb, even with a supplemental O₂ canister. Descending quickly is often the only survival option.

The cost of a commercial Everest expedition runs around €30,000 to €100,000 depending on the agency and level of service. The Nepali permit alone costs $11,000 per climber. The ideal season is concentrated in April–May (pre-monsoon), or more rarely September–October (post-monsoon), when the jet-stream winds temporarily withdraw from the summit.

K2 (Karakoram, Pakistan, rated 4.7/5 on Google with 6,244 reviews), at 8,611 meters, is the second highest mountain in the world, and by far the most deadly among the Himalayan giants. Its historical mortality rate hovers around 25 to 30% of summit attempts, roughly one death for every four successful ascents. This figure has fallen slightly thanks to modern techniques and improved weather forecasting, but K2 remains fundamentally more difficult than Everest. Its nickname, 'the Savage Mountain,' is well earned.

The designation 'K2' is purely administrative: it was the second peak measured by the British survey commission of 1856. Its local name Chogori ('great mountain' in Balti) is little used outside Pakistan. The mountain straddles the border between Pakistan (southwestern face, Gilgit-Baltistan side) and China (northeastern face, Xinjiang side).

The first ascent was accomplished on 31 July 1954 by Italians Lino Lacedelli and Achille Compagnoni, during an expedition led by Ardito Desio. This ascent was marred by controversy: Walter Bonatti, a young climber on the expedition who had carried the oxygen bottles to the final camp, claimed for decades that Lacedelli and Compagnoni had moved the camp to prevent him from joining them and sharing the glory. This dispute lasted fifty years before being officially resolved in Bonatti's favor.

What makes K2 so different from Everest is the nature of its slopes. The mountain has no long, gradual itinerary: it rises quickly, steeply, with few places to establish rescue camps. The most feared section is the 'Bottleneck', a 50-degree couloir wedged beneath a massive hanging serac at around 8,200 meters. In August 2008, eleven climbers died over two days in and around this zone: the serac collapsed, severing the fixed ropes and sending several climbers into the void. It is one of the deadliest disasters in the history of high-altitude mountaineering.

K2 was also the last of the ten highest mountains to be climbed in winter. This extraordinary achievement was finally accomplished on 16 January 2021 by a Nepali team of ten climbers — Nirmal 'Nims' Purja, Mingma Gyalje Sherpa, Mingma David Sherpa, and seven others — who reached the summit together in temperatures of -65°C with wind. A historic moment for world mountaineering.

The season for attempting K2 is even shorter than for Everest: June and July offer the best window on the Pakistani side. The Pakistani permit costs around $1,800 per climber, significantly less than in Nepal, but the logistical conditions in Baltistan (Karakoram Highway, base camp trek from Skardu) make the expedition long and costly.

Cho Oyu (Khumbu Region, Nepal/Tibet, rated 4.3/5 on Google with 290 reviews) (8,188 meters) is the sixth highest peak in the world, on the Nepal-Tibet border approximately 20 kilometers west of Everest. Its Tibetan name means 'turquoise goddess.' Among the fourteen 8,000 m peaks, it is generally considered the most technically accessible, making it a popular target for mountaineers looking to gain high-altitude experience before attempting more challenging summits.

The first ascent was made on 19 October 1954 by Austrian Herbert Tichy, Swiss climber Sepp Jöchler, and Sherpa Pasang Dawa Lama, members of a small expedition that used no supplemental oxygen — a notable achievement for the era. Since then, approximately 3,800 successful ascents have been recorded, an exceptionally high figure for an 8,000 m peak, with a mortality rate of only around 1.5%.

The normal route runs via the Tibetan (northwestern) face, which requires passing through Lhasa and obtaining Chinese permits. This geopolitical dependency makes access subject to administrative closures decided by Beijing. The Tibetan route is nonetheless more direct and technically less committing than most other 8,000 m approaches.

Manaslu (Gorkha, Nepal, rated 4.4/5 on Google with 509 reviews) (8,163 meters) is the eighth highest peak in the world, located entirely in Nepal, in the Gorkha region. Its name derives from the Sanskrit Manasa ('spirit' or 'intellect'), and it is sometimes called the 'mountain of the spirit' in local traditions. The Manaslu Circuit trek, which circles the mountain through remote villages and high-altitude passes, has become one of Nepal's most sought-after trekking routes, rivaling the Annapurna Circuit for travelers looking to avoid the crowds.

The first ascent was made on 9 May 1956 by Japanese climber Toshio Imanishi and Sherpa Gyalzen Norbu, during a Japanese expedition. Japan sent several expeditions to this mountain, to the point that Manaslu is sometimes called 'the Japanese mountain' in the Himalayan community. Since then, the number of attempts on Manaslu has soared with the rise of commercial mountaineering: several thousand ascents in total, with a mortality rate of around 6 to 7%.

In 2012, a devastating avalanche killed 11 mountaineers at Camp III in a single night, a reminder that even the 'less difficult' 8,000 m peaks can be deadly. The normal route (northeast face) presents fewer pure technical challenges than K2 or Kangchenjunga, but altitude and weather remain constant risk factors.

The ten highest peaks in the world are exclusively Himalayan or Karakoram, but every continent has its own giants. The Seven Summits (Seven Summits) refer to the highest points on each continent, a coveted goal for ambitious mountaineers. Aconcagua (6,962 m) in Argentina dominates the Americas. Denali (6,190 m) in Alaska crowns North America. Kilimanjaro (5,895 m) in Tanzania is the roof of Africa, and one of the most accessible high points, reachable without technical equipment by well-prepared trekkers. In Europe, the debate remains open depending on whether one considers Mont Blanc (4,808 m) in the Franco-Italian Alps or Elbrus (5,642 m) in the Russian Caucasus as Europe's highest summit, with the geographical boundary between Europe and Asia varying by source.

In Oceania, Puncak Jaya (4,884 m) in Indonesia (New Guinea) is the highest point if one applies the broader boundaries of the Australasian continent (rather than Australia alone, whose highest summit, Mount Kosciuszko, reaches only 2,228 m). In Antarctica, Mount Vinson (4,892 m) in the Ellsworth Mountains is the highest, accessible only from the Union Glacier logistics base. On the African continent, beyond Kilimanjaro, the highest summits are concentrated in Kenya (Mount Kenya, 5,199 m), on the Uganda-DR Congo border (Rwenzori massif, with Margherita Peak at 5,109 m), and in Ethiopia (Ras Dashen, around 4,550 m).

This geography of records is at the heart of many exploratory features on the Ryo app: articles on the world's largest countries by area or on the most populous countries help complete this global vision of our planet's extremes.

Beyond the heroic tales, attempting to climb an 8,000 m peak requires serious preparation and several years of prior high-altitude experience. Here are the steps and parameters to know if you are seriously considering such a project.

Acclimatization is the number-one factor for success and survival. The human body cannot adapt instantly to the reduction in atmospheric pressure: at 8,000 meters, the air contains only about one-third of the oxygen available at sea level. A climber who ascends too quickly develops acute mountain sickness (AMS), which can progress to fatal pulmonary or cerebral edema. The standard protocol requires advancing in stages, regularly descending to lower camps, and allowing a minimum of six to eight weeks for acclimatization before the final push.

Base physical fitness must be exceptional. Specialist coaches recommend hundreds of hours of specific training (intensive cardiovascular work, functional strength training, simulated altitude sessions in a hypoxic chamber) over two to three years before attempting an 8,000 m peak. Most commercial climbers who ascend Everest have spent several years on summits of 5,000 then 6,000 meters (Aconcagua, Denali, Cho Oyu first) before taking on the challenge.

Essential gear includes: a high-altitude down suit (comfort rating close to -40°C), 12-point crampons, appropriate ice axes, oxygen masks and cylinders (for the vast majority of modern ascents), tunnel tents able to withstand extremely strong winds, and satellite communication systems. The complete equipment kit for an 8,000 m climber easily amounts to €15,000 to €25,000 in gear alone, excluding food and permits.

The total budget for a commercial Everest expedition ranges from €30,000 to €100,000 depending on the agency. Pakistani peaks (K2, Nanga Parbat) cost less in permits but more in approach logistics. Less well-known Nepali peaks like Manaslu or Cho Oyu are often considered more affordable options for a first 8,000 m attempt (sometimes from as little as €15,000 to €25,000 all-inclusive).

High-altitude guides play a central role. Nepali Sherpas and high-altitude porters from Baltistan form the backbone of all commercial expeditions. Without them — establishing camps, fixing ropes, and carrying oxygen bottles — the vast majority of contemporary ascents would be impossible. Their pay and safety conditions are an increasingly debated topic in the international mountaineering community.

The climbing window is critical. For Nepali peaks, the spring window (mid-April to late May) is the most widely used: the jet stream shifts slightly northward, offering a few days of moderate winds. The autumn window (September–October) is less reliable. For Pakistani peaks, summer (June–August) is the right season — no monsoon, but frequent afternoon thunderstorms.

Which is the most dangerous peak among the 10 highest in the world?

According to historical statistics, Annapurna (8,091 m) is the most dangerous in terms of the death-to-successful-ascent ratio, with a mortality rate of around 30% throughout its history. K2 and Nanga Parbat follow closely at around 25%. Everest, despite its fame, is among the least deadly thanks to its well-marked routes and the commercial industry surrounding it.

Can you climb Everest without prior mountaineering experience?

No. Reputable commercial agencies require several years of high-altitude experience before accepting a client on Everest. Most require a successful ascent of at least a 7,000 m peak (often Denali or Aconcagua) and experience on glaciers and ice. The Nepali government does not itself impose very strict criteria, but responsible agencies refuse unqualified climbers.

What is the best season to attempt the 8,000 m peaks?

For the peaks of the Nepali Himalayas (Everest, Lhotse, Kangchenjunga, Manaslu, Annapurna, Makalu), the spring window (mid-April to late May) is the primary one. For Pakistani peaks (K2, Nanga Parbat), June and July are the preferred months. Cho Oyu on the Tibet side is often attempted in September–October to avoid peak-season permits.

How much does a permit to climb Everest cost?

The Nepali government charges $11,000 per climber for an Everest climbing permit, valid for the spring season. This amount does not cover the rest of the expedition costs (agency, transport, equipment, Sherpas, oxygen), which bring the total bill to €30,000 to €100,000 depending on the level of service.

How many people have climbed all 14 peaks above 8,000 meters?

Since Reinhold Messner's achievement in 1986 (the first to climb all 14 peaks above 8,000 m, all without supplemental oxygen), several dozen mountaineers have accomplished what is known as the '8000ers Grand Slam.' Among the most notable, Nirmal Purja completed all 14 in just 189 days in 2019, shattering the previous record by nearly eight years.

Are there any peaks above 8,000 meters outside Asia?

No. All 14 peaks above 8,000 meters are located in Asia, exclusively in the Himalayas and the Karakoram (spanning Nepal, China/Tibet, India, and Pakistan). No peak on any other continent exceeds 7,000 meters: Aconcagua in Argentina, the highest summit outside Asia, tops out at 6,962 meters.

From the 8,849 meters of Everest to the 8,091 meters of Annapurna, these ten summits alone concentrate the greatest epics in world mountaineering, the most extraordinary records, and the most intense human stories. This ranking of the world's highest peaks is also an invitation to understand our planet: its geology, its climatic extremes, and the limits of human endurance.

Whether you dream of climbing or simply of traveling through the Himalayan regions, the Ryo app is here to help you explore these extraordinary destinations. Find audio guides, itineraries, and articles on Ryo to plan your adventures in Asia and beyond, from Katmandou to the massifs of Pakistan.