World's Longest Road Tunnels
Source:
Wikipedia
Key Findings
🏆
Laerdal Tunnel (Norway) leads in Length (km) with 24.51.
📊
Average Length (km): 15.28 · median: 13.44.
↔️
Gap: Laerdal Tunnel (Norway) is 2.1× larger than Gudvanga Tunnel (Norway).
About This Dataset
World's Longest Road Tunnels
Road tunnels ranked by total length in kilometres. Norway's Lærdal Tunnel is the world's longest road tunnel at 24.5 km, connecting the towns of Lærdal and Aurland through the mountains of western Norway. It was designed with three large mountain caverns and special lighting to combat the psychological strain of driving through such a long enclosed space.
Analysis
Laerdal Tunnel (Norway) heads the table on 24.5, ahead of Zhongnan Mountain Tunnel (China) (18.0) and Gotthard Road Tunnel (Switzerland) (16.9) in Length (km). 13.1 separates the highest figure (24.5) from the lowest (11.4) in Length (km). First and second are separated by 6.47, so the leader sits inside the field rather than apart from it. Places 3 to 8 are close together, spanning 16.9 to 11.4 Length (km).
Data Insights
Numbers, trends & sources behind this chart
Methodology & source
- Data source
- Wikipedia
- Coverage
- 8 entities · 8 observations
- Measure
- Length (km)
- Last updated
- 6 September 2026
- Compiled by
- The ANYSTAT team, from the source above
How the figures are calculated
- Values use the measure and unit named on this page. Consult the dataset description and cited source for coverage, definitions and any unit conversions. Displayed values may be rounded for readability.
- Entities are ranked highest-first on their value.
Data Sources & References
All external sources cited in this dataset
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