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Eight-thousanders compared

Mount Everest vs Cho Oyu

Mount Everest (8,848.86 m, world #1) and Cho Oyu (8,188 m, world #6) compared side by side — height, first ascent and danger. Mount Everest is 661 m taller.

Mount EverestCho Oyu
Height8,848.86 m8,188 m
World rank#1#6
RangeMahalangur HimalMahalangur Himal
LocationSolukhumbu, KoshiSolukhumbu, Koshi
BorderNepal–China (Tibet) borderNepal–China (Tibet) border
First ascent29 May 195319 October 1954
First climbersEdmund Hillary (NZ) & Tenzing Norgay Sherpa (Nepal)Herbert Tichy, Josef Jöchler (Austria) & Pasang Dawa Lama (Nepal)
Standard routeSoutheast Ridge via South Col (Nepal); Northeast Ridge (Tibet)Northwest Ridge from Tibet (the usual commercial route); Nepal-side routes are far harder
Danger339 deaths against 13,737 summits through December 2025 — ≈1.06 deaths per 100 summits (Himalayan Database via Alan Arnette, 2026).Fatality rate ≈1.4% of summits — statistically the safest eight-thousander (Himalayan Database-derived compilations).
Questions

Mount Everest vs Cho Oyu, answered

Is Mount Everest taller than Cho Oyu?+

Mount Everest stands 8,848.86 m and Cho Oyu 8,188 m, so Mount Everest is 661 m taller. Mount Everest is the world's 1st-highest mountain and Cho Oyu the 6th.

Which was climbed first, Mount Everest or Cho Oyu?+

Mount Everest was first summited on 29 May 1953; Cho Oyu on 19 October 1954.

Which is more dangerous, Mount Everest or Cho Oyu?+

Mount Everest: 339 deaths against 13,737 summits through December 2025 — ≈1.06 deaths per 100 summits (Himalayan Database via Alan Arnette, 2026). Cho Oyu: Fatality rate ≈1.4% of summits — statistically the safest eight-thousander (Himalayan Database-derived compilations).

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Sources & data note

Heights follow the 2020 Nepal–China Everest survey and UIAA figures. Ascent and fatality statistics derive from the Himalayan Database (via Alan Arnette, 2026) and reported press figures; see each peak's profile for full sourcing.