Your total trip with all stops is around 890 miles / 1430 km, taking roughly 15.5 hours for the whole trip. If you want to see every small town along the way, you can get a full list of cities between GBT and TCX.
Start from Gorgan Airport.
Shahrud, Iran is stopping point #1 after driving about 210 km (130 miles) or 3 hours.
Isfahan, Iran is stopping point #2 after driving about 620 km (390 miles) or 6.5 hours. Your total trip so far is about 830 km or 520 miles over roughly 9 hours of driving.
Finally, Tabas Airport is your destination after driving about 600 km (370 miles) or 6 hours. Your total trip with all stops is around 1430 km or 890 miles, taking roughly 15.5 hours for the whole trip.
Travelmath helps you figure out where to stop when planning a long road trip from one location to another. The best stopping point for an overnight hotel stay or a break from driving often depends on how far or how long you want to drive before pausing to rest. You can find the closest city to your stopping point to look for hotels, or explore other cities and towns along the route. Use this as a road trip planner when you're driving cross-country or mapping a route with multiple stops.