How far is Rock Springs, WY from Casper, WY?
Fastest route
The distance between Rock Springs, Wyoming 82901 and Casper, Wyoming is approximately 229 miles (369 kilometers). The fastest route is currently via I-80 E and WY-220 E, with an estimated travel time of 3 hours and 22 minutes.
Directions
- Start by getting on I-80 E/US-30 E from S Side Belt Route and 9th St.
- Head north on Agate St toward Collins St.
- Continue straight onto Edgar St.
- Turn right onto Virginia St.
- Turn left onto S Side Belt Route.
- Turn right onto 9th St (signs for US-30/Interstate 80).
- Turn right to merge onto I-80 E/US-30 E toward Rawlins.
- Follow I-80 E/US-30 E and WY-789 N to WY-220 E in Carbon County.
- Merge onto I-80 E/US-30 E.
- Take exit 211 for I-80BL/WY-789 N toward US-287/Rawlins.
- Turn left onto I-80BL/WY-789 N.
- Turn left onto US-287 N/WY-789 N/3rd St (signs for Casper-Lander).
- Continue to follow US-287 N/WY-789 N.
- Continue on WY-220 E to Mills.
- Turn left onto State Hwy 257/W Belt Lp.
- Continue on US-20 E/US-26.
- Take I-25 S/US-87 S to N Beverly St in Casper.
- Continue onto US-20 E/US-26.
- Use the right lane to merge onto I-25 S/US-87 S via the ramp to Casper/Cheyenne.
- Take exit 186 toward US-20 E/US-26 E/US-87 S/N Beverly St/Bryan Stock Trail.
- Continue onto US-87/East E Street.
- Turn right onto N Beverly St.
- Continue straight to stay on N Beverly St.
Tips & Suggestions
- 🚗 Leave early to avoid heavy traffic and make the most of your journey.
- ⛽ Plan your fuel stops along the route to ensure you don't run out of gas.
- 🍴 Pack some snacks or plan meal stops along the way for refreshments.
- 🚧 Keep an eye out for construction zones or roadwork and follow any detour signs.
- 🛣️ Stay attentive to the road signs and follow the indicated highways and exits.
- 📱 Use a GPS navigation system or a reliable map application for real-time guidance.
- 📞 In case of emergencies or breakdowns, have the contact information of local roadside assistance services on hand.
Distance by Flight
Shortest distance between Rock Springs and Casper is 172.24 miles (277.19 km).
Flight distance from Rock Springs, WY to Casper, WY is 172.24 miles. Estimated flight time is 00 hours 27 minutes.
It takes 00 hours 25 minutes to travel from Rock Springs to Casper with an airplane (average speed of 550 miles).
Driving distance
The driving distance from Rock Springs, Wyoming to Casper, Wyoming is: 229.76 miles (369.76 km) by car.
Driving from Rock Springs to Casper will take approximately 03 hours 56 minutes.
#1 Rock Springs
City in Sweetwater County, Wyoming, United States
| Population | 22943 |
|---|---|
| GPS Coordinates | 41°35'15"N 109°12'10"W |
| Latitude | 41.5874600 |
| Longitude | -109.2029000 |
| Altitude | 1947 |
| Country | United States |
#2 Casper
The most populous city in Natrona County, Wyoming. It is located on the North Platte River in eastern Wyoming. Casper is known for its many parks and green spaces, its many historical sites, and its many attractions, such as the National Historic Trails Interpretive Center and the Casper College Museum.
| Population | 58498 |
|---|---|
| GPS Coordinates | 42°51'60"N 106°18'47"W |
| Latitude | 42.8666300 |
| Longitude | -106.3130800 |
| Altitude | 1560 |
| Country | United States |
Ending point in Casper: North Sunlight Drive (-106.309604,42.868632)
Estimated Travel Time Between Rock Springs and Casper
The distance between Rock Springs and Casper is 370 km if you choose to drive by road. You can go 04 hours 06 minutes if you drive your car at an average speed of 90 kilometers / hour. For different choices, please review the avg. speed travel time table on the below.
There is no time difference between Rock Springs and Casper. The current time is 08:46:04.
| Average Speed | Travel Time |
|---|---|
| 30 mph (48.3 km/h) | 07 hours 39 minutes |
| 40 mph (64.37 km/h) | 05 hours 44 minutes |
| 50 mph (80.47 km/h) | 04 hours 35 minutes |
| 60 mph (96.56 km/h) | 03 hours 49 minutes |
| 70 mph (112.65 km/h) | 03 hours 16 minutes |
| 75 mph (120.7 km/h) | 03 hours 03 minutes |
| 80 mph (128.75 km/h) | 02 hours 51 minutes |
Gas Consumption
A car with a fuel efficiency of 8.3 l/100 km will need 30.69 liters (8.11 gallon) of gas to cover the route between Rock Springs and Casper.
The estimated cost of gas to go from Rock Springs to Casper is $29.52 (diesel $38.48).
Wyoming gas prices.
| Gasoline | Mid Grade | Premium | Diesel | |
|---|---|---|---|---|
| Gallon | $3.64 | $3.88 | $4.17 | $4.75 |
| Total | $29.52 | $31.47 | $33.8 | $38.48 |
Take a look at our Gas Cost Calculator feature. It will figure out how much it will cost to drive this particular distance.
The average gas price (in Wyoming ) per gallon of daily gas for calculations is $3.641 (Diesel $4.746) /gallon. Last changed prices on December 26, 2024.
How did we calculate the distance?
The place names are translated into coordinates to approximate the distance between Rock Springs and Casper (latitude and longitude). Cities, states, and countries each have their own regional center. The Haversine formula is used to measure the radius.
