Map of flight path and driving directions from Watertown to Decatur.
Shortest flight path between Watertown International Airport (ART) and Decatur Airport (DEC).
How far is Decatur from Watertown?
There are several ways to calculate distances between Watertown and Decatur. Here are two common methods:Vincenty's formula (applied above)
- 720.589 miles
- 1159.676 kilometers
- 626.175 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
- 719.135 miles
- 1157.335 kilometers
- 624.911 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 Watertown and Decatur is 1 hour. Decatur is 1 hour behind Watertown.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 127 kg (280 pounds).
Frequent Flyer Miles Calculator
Watertown (ART) → Decatur (DEC).