Bihar to Iran · 3,619 km · Compare travel & driving options
The straight-line distance from Katihar to Tehran is approximately 3,619 km (2,249 miles). By road, the distance increases to about 2,182 km due to terrain, highways, and road networks connecting Bihar to Iran.
For official travel information, regulations, and booking services:
DGCA — Indian aviation authority
Passport Seva — Passport and travel documents