How far is Casper, WY from Rock Springs, WY?
Fastest route
The route from Casper, Wyoming, USA to Rock Springs, Wyoming 82901, USA is approximately 225 miles and takes about 3 hours and 28 minutes. The directions involve taking WY-220 W, US-287 S, and I-80 W.
Directions
- Start on E 12th St and head south on S Beverly St toward E 3rd St.
- Turn right onto E 12th St and continue for 2.4 miles, passing by Burger King on the left.
- Follow US-287 S and I-80 W/US-30 W until you reach I-80BL/US-30 BUS W in Sweetwater County. Take exit 107 from I-80 W/US-30 W.
- Continue straight onto US-287 S/3rd St and then turn right onto I-80BL/WY-789 S/W Spruce St (signs for I-80 W/US-30 W/Rock Spg).
- Turn right onto the I-80 W/US-30 W/WY-789 S ramp to Rock Springs and merge onto I-80 W/US-30 W.
- Take exit 107 for US-30 BUS toward I-80BUS/WY-430/Pilot Butte Ave.
- Continue on I-80BL/US-30 BUS W. Take S Side Belt Route to Agate St, then turn left onto I-80BL/US-30 BUS W, left onto S Side Belt Route, and finally left onto Virginia St. You will arrive at Rock Springs, Wyoming 82901, USA.
Tips & Suggestions
- 🚗 Make sure to follow the directions closely to stay on the correct route.
- ⛽ Plan for fuel stops along the way, especially if your vehicle has a limited range.
- 📱 Consider using a navigation app or GPS device to assist you during the journey.
- 🚧 Be aware of any road closures or construction that may affect the suggested route.
- 🕐 Take into account traffic conditions and adjust your departure time accordingly.
- 🍽️ Pack snacks and drinks for the road to keep yourself refreshed and energized.
- 🛣️ Enjoy the scenic views along the way as you travel through Wyoming's beautiful landscapes.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 03h 58m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Carbon County, Wyoming, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Casper and Rock Springs.
Turn-by-Turn Driving Directions
Step-by-step road directions between Casper and Rock Springs.
-
1
Start on North Sunlight Drive
1368 ft · 1 min · North Sunlight Drive
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2
Turn right
770 ft · 34 sec
-
3
Turn right onto East Sunlight Drive
2655 ft · 2 min · East Sunlight Drive
-
4
At the end of the road, turn right onto Bryan Stock Trail
1.1 mi · 2 min · Bryan Stock Trail
-
5
Turn right onto East F Street
967 ft · 16 sec · East F Street
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6
Take the ramp straight
2.1 mi · 3 min
-
7
Take the exit slight right toward US 20 West, US 26 West, WY 220 West: Shoshoni, Port of Entry
1846 ft · 45 sec
-
8
Keep slight left
107 m · 11 sec
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9
Turn left
3 mi · 4 min
-
10
Continue on Casper West Belt
7.3 mi · 9 min · Casper West Belt
-
11
Turn right onto County Road 308
63.7 mi · 1 hr 12 min · County Road 308
-
12
Continue straight
44.1 mi · 51 min
-
13
Turn right onto West Spruce Street
1.5 mi · 2 min · West Spruce Street
-
14
Take the ramp right
1 km · 1 min
-
15
Merge slight left onto Dwight D. Eisenhower Highway
103.6 mi · 1 hr 40 min · Dwight D. Eisenhower Highway
-
16
Take the exit slight right toward I 80 Business West, US 30 Business West
2755 ft · 48 sec
-
17
Turn left onto 9th Street
2579 ft · 51 sec · 9th Street
-
18
Turn left onto South Side Belt Route
2032 ft · 41 sec · South Side Belt Route
-
19
Turn slight right
70 m · 10 sec
-
20
Turn straight onto James Drive
813 ft · 25 sec · James Drive
-
21
Turn left onto Virginia Street
905 ft · 47 sec · Virginia Street
-
22
Turn left onto Edgar Street
789 ft · 22 sec · Edgar Street
-
23
At the end of the road, turn right onto Agate Street
129 m · 24 sec · Agate Street
-
24
Turn left onto Collins Street
26 m · 4 sec · Collins Street
-
25
Arrive at your destination
0 m · 1 sec · Collins Street
Car Route Details
A richer read on the saved driving route between Casper and Rock Springs.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Dwight D. Eisenhower Highway
Merge slight left onto Dwight D. Eisenhower Highway
104 mi · 01h 40m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Sunny leaving Casper and Sunny near Rock Springs.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Casper to Rock Springs?
The road trip is about 230.5 miles (370.9 km) and usually takes 03h 58m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Rawlins is a useful midpoint, sitting about 115.1 miles from Casper and 115.4 miles from Rock Springs.
How much longer is the road route than the straight-line distance?
The direct path is about 172.2 miles (277.2 km), while the road route adds roughly 58.3 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 9:02 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $31.65 one way or $63.30 round trip. Estimated CO2 is about 72.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Casper and Sunny near Rock Springs.
Stop Ideas Near Rawlins
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Tully Park
City Of Rawlins Public Works Department
City Hall
Key Club Park
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Rawlins.
Flight Path Map
This map shows the direct air route between Casper and Rock Springs. Straight-line distance: 172.24 mi (277.19 km).
#1 Casper
The most populous city in Natrona County, Wyoming.
| Population | 58,498 |
| Coordinates | 42.8666300, -106.3130800 |
| Altitude | 1560 |
| Country | United States |
#2 Rock Springs
City in Sweetwater County, Wyoming, United States
| Population | 22,943 |
| Coordinates | 41.5874600, -109.2029000 |
| Altitude | 1947 |
| Country | United States |
End: Collins Street (-109.202964, 41.587676)
Estimated Travel Time
Distance: 371 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 40m |
| 40 mph (64.37 km/h) | 05h 45m |
| 50 mph (80.47 km/h) | 04h 36m |
| 60 mph (96.56 km/h) | 03h 50m |
| 70 mph (112.65 km/h) | 03h 17m |
| 80 mph (129 km/h) | 02h 52m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $31.65 | $63.30 |
| Mid-grade | $4.23 | $34.40 | $68.80 |
| Premium | $4.55 | $36.98 | $73.97 |
| Diesel | $5.41 | $44.00 | $88.00 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Wyoming · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.