List of mountains of the British Isles by height

Highest mountains in British Isles ("Simms" classification)
Ben Nevis, in the Scottish Highlands, is the highest mountain in the British Isles
Highest point
Elevation	over 600 m (1,969 ft)
Prominence	over 30 m (98 ft)
Geography
Location	2,754 British Isles: 2,190 Scotland 225 Ireland 192 England 149 Wales 1 Isle of Man

This is a list of British Isles mountains by height, also known as "elevation". Height and prominence are the most important metrics for the classifications of mountains by the UIAA; with isolation a distant third criterion.^{[lower-alpha 1][2]} The list is sourced from the Database of British and Irish Hills ("DoBIH")^{[lower-alpha 2]} for peaks that meet the consensus height threshold for a mountain, namely 600 metres (1,969 ft); the list also rules out peaks with a prominence below 30 metres (98 ft), and thus, the list is therefore precisely a list of the 2,754^{[lower-alpha 3]} Simms in the British Isles (as at October 2018).^[3][4] Many classifications of mountains in the British Isles consider a prominence between 30–150 metres (98–492 ft) as being a "top", and not a mountain, however, using the 30 metres (98 ft) threshold maximises the inclusion of major Scottish Munros and Murdos, and is the broadest possible list of mountains. For a ranking of British Isles mountains by height, but with a prominence above 150 metres (492 ft), see the "list of mountains of the British Isles by prominence" article, which contains all such mountains.

Despite using the lower criterion for minimum prominence of 30 metres (98 ft), the minimum UIAA criterion for an "independent peak",^[2] one Scottish Munro is missing, namely Maoile Lunndaidh with an official prominence of 11 metres (36 ft);^{[lower-alpha 4][lower-alpha 5]} However, all 442 of the Scottish Murdos are represented, as well as 33^{[lower-alpha 6]} of the 34 Furths (or non-Scottish Munros). The non-Scottish peaks on this list above a height of 2,000 feet (610 m) are by definition the list of 528 Hewitts in the British Isles, while the peaks with a prominence above 600 metres (1,969 ft) are by definition the 120 P600s in the British Isles (also called "Majors").^[6]

Simms mountains by height

This list was downloaded from the DoBIH in October 2018, and excludes all British Isles peaks with a prominence below 30 metres (98 ft).^{[lower-alpha 2]} Note that topological prominence, unlike topological elevation, is far more complex to measure and requires a survey of the entire contours of a peak, rather than a single point of height.^[9] These tables are therefore subject to being revised over time, and should not be amended or updated unless the entire DoBIH data is re-downloaded again. The table ranking is by height, so where the table is sorted by for example Country, the table will also list the mountains within each Country by order of height. The other British Isles mountain classifications that each peak falls under are also provided (e.g. Hewitts and Munros etc.), along with the DoBIH codes and table of classifications.