About how many people have died attempting Mount Everest through 2025?
Answer339
That toll has built up across more than a century of expeditions on the mountain.
Source: Alan Arnette, 'Everest by the Numbers' alanarnette.com
Outdoors · Facts & sources
Summit facts & stats
4 sourced facts about mountain summits, especially Mount Everest, each with the context behind the number. 4 more are in today's round and appear here after it closes.
The basics
Expert level
About how many different people have summited Everest at least once, as of 2025?
Answerabout 7,563
The total number of summits is much higher because many climbers and guides summit more than once.
Source: Alan Arnette, 'Everest by the Numbers' alanarnette.com
What's the overall success rate for climbers who attempt to summit Everest above base camp?
Answerabout 43%
Success is measured as summits divided by attempts made above base camp, across all expeditions tracked.
Source: Alan Arnette, 'Everest by the Numbers' alanarnette.com
Non-standard Everest routes account for only 1.4% of all summits, but roughly what share of all deaths?
Answerabout 21%
Riskier, less-traveled routes are disproportionately deadly even though almost everyone climbs the two standard routes.
Source: Alan Arnette, 'Everest by the Numbers' alanarnette.com
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