Bihar to Iran · 3,289 km · Compare travel & driving options
The straight-line distance from Gopalganj to Tehran is approximately 3,289 km (2,044 miles). By road, the distance increases to about 1,770 km due to terrain, highways, and road networks connecting Bihar to Iran.
The drive from Gopalganj to Tehran is a long one — approximately 1,770 km taking around 23 hrs 19 min. Plan at least one overnight halt. Fatigue driving on Indian highways is dangerous.
For official travel information, regulations, and booking services:
DGCA — Indian aviation authority
Passport Seva — Passport and travel documents