How far is Decatur from Atlanta?
There are several ways to calculate distances between Atlanta and Decatur. Here are two common methods:Vincenty's formula (applied above)
- 493.093 miles
- 793.557 kilometers
- 428.486 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
- 493.552 miles
- 794.294 kilometers
- 428.885 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).
Estimated flight time from Hartsfield–Jackson Atlanta International Airport (ATL) to Decatur Airport (DEC) is 1 hour 26 minutes.
Time difference and current local times
The time difference between Atlanta and Decatur is 1 hour. Decatur is 1 hour behind Atlanta.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 98 kg (216 pounds).
Atlanta to Decatur flight path
Shortest flight path between Hartsfield–Jackson Atlanta International Airport (ATL) and Decatur Airport (DEC).
Frequent Flyer Miles Calculator
Atlanta (ATL) → Decatur (DEC).