Map of flight path from London to Semnan.
Shortest flight path between London Heathrow Airport (LHR) and Semnan Municipal Airport (SNX).
How far is Semnan from London?
There are several ways to calculate distances between London and Semnan. Here are two common methods:Vincenty's formula (applied above)
- 2847.243 miles
- 4582.193 kilometers
- 2474.186 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.Haversine formula
- 2841.090 miles
- 4572.291 kilometers
- 2468.840 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
Time difference and current local times
The time difference between London and Semnan is 3 hours 30 minutes. Semnan is 3 hours 30 minutes ahead of London.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 316 kg (697 pounds).
Frequent Flyer Miles Calculator
London (LHR) → Semnan (SNX).