Longest Railway Tunnels in the World 2026
Key Findings
🏆
Gotthard Base Tunnel (Switzerland) leads in Tunnel Length (km) with 57.10 in 2026.
📊
Average Tunnel Length (km) in 2026: 38.18 · median: 33.75.
↔️
Gap in 2026: Gotthard Base Tunnel (Switzerland) is 2.2× larger than Hakkōda Tunnel (Tōhoku Shinkansen) (Japan).
About This Dataset
Longest Railway Tunnels in the World 2026
Length of the longest railway tunnels in service in 2026, measured along the bore in kilometres. Twin-tube tunnels are measured once, not as the sum of both tubes, and metro tunnels are listed separately in the source and excluded here.
Analysis
Gotthard Base Tunnel in Central Swiss Alps, Switzerland runs 57.1 km, 3.2 km longer than Seikan Tunnel. The 12 tunnels here total 458.2 km. 2 are in Japan and 2 in Switzerland. The shortest on the chart, Hakkōda Tunnel (Tōhoku Shinkansen), measures 26.5 km.
Data Insights
Numbers, trends & sources behind this chart
Methodology & source
- Data source
- Wikipedia, List of longest tunnels
- Coverage
- 12 entities · 2026 · 12 observations
- Measure
- Tunnel Length (km)
- Last updated
- 7 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 in 2026.
Data Sources & References
All external sources cited in this dataset
Was this chart useful?
⚑ Spotted an error in this data? Report it
Cite this chart
Using this chart in an article, report, class or website? Please cite it and link to this page.
Related Charts
More statistics on similar topics
Related
All Time
153.0
Tarbela Dam
View Chart
1 month ago