Map of flight path and driving directions from Baltimore to Decatur.
Shortest flight path between Baltimore–Washington International Airport (BWI) and Decatur Airport (DEC).
How far is Decatur from Baltimore?
There are several ways to calculate distances between Baltimore and Decatur. Here are two common methods:Vincenty's formula (applied above)
- 652.934 miles
- 1050.796 kilometers
- 567.384 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
- 651.333 miles
- 1048.219 kilometers
- 565.993 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 Baltimore and Decatur is 1 hour. Decatur is 1 hour behind Baltimore.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 119 kg (263 pounds).
Frequent Flyer Miles Calculator
Baltimore (BWI) → Decatur (DEC).