Air Miles Calculator

Distance between Rock Springs, WY (RKS) and Fresno, CA (FAT)

Flight distance from Rock Springs to Fresno (Southwest Wyoming Regional Airport – Fresno Yosemite International Airport) is 661 miles / 1063 kilometers / 574 nautical miles. Estimated flight time is 1 hour 45 minutes.

Driving distance from Rock Springs (RKS) to Fresno (FAT) is 981 miles / 1578 kilometers and travel time by car is about 16 hours 17 minutes.

Map of flight path and driving directions from Rock Springs to Fresno.

Shortest flight path between Southwest Wyoming Regional Airport (RKS) and Fresno Yosemite International Airport (FAT).

How far is Fresno from Rock Springs?

There are several ways to calculate distances between Rock Springs and Fresno. Here are two common methods:

Vincenty's formula (applied above)
  • 660.763 miles
  • 1063.395 kilometers
  • 574.187 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
  • 659.819 miles
  • 1061.875 kilometers
  • 573.367 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).

Airport information


A Southwest Wyoming Regional Airport
City: Rock Springs, WY
Country: United States Flag of United States
IATA Code: RKS
ICAO Code: KRKS
Coordinates: 41°35′39″N, 109°3′54″W

B Fresno Yosemite International Airport
City: Fresno, CA
Country: United States Flag of United States
IATA Code: FAT
ICAO Code: KFAT
Coordinates: 36°46′34″N, 119°43′4″W

Time difference and current local times

The time difference between Rock Springs and Fresno is 1 hour. Fresno is 1 hour behind Rock Springs.

Time Difference

Rock Springs, WY

 MDT

Fresno, CA

 PDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 120 kg (265 pounds).

Frequent Flyer Miles Calculator

Rock Springs (RKS) → Fresno (FAT).

Distance:
661
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
661

Round trip?