How far is Bar Nunn, WY from Rock Springs, WY?
The driving distance from Bar Nunn, WY to Rock Springs, WY is about 229.1 miles (368.7 km), with a travel time of about 03h 56m by car.
- The straight-line flight distance is about 172.6 miles (277.7 km).
- For a round trip, plan for roughly 07h 52m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
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 56m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
This departure sits inside the recommended comfort window for the route.
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.
Scattered Rain Showers
Partly Sunny
Driving Route Map
The map below follows the saved road route between Bar Nunn and Rock Springs.
Turn-by-Turn Driving Directions
Step-by-step road directions between Bar Nunn and Rock Springs.
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1
Start on Sunset Boulevard
1336 ft · 40 sec · Sunset Boulevard
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2
At the end of the road, turn right onto Salt Creek Highway
1.1 mi · 2 min · Salt Creek Highway
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3
Turn left onto Howard Street
564 ft · 13 sec · Howard Street
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4
Take the ramp right toward I 25 South, US 87 South: Casper
1979 ft · 48 sec
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5
Merge slight left
1.4 mi · 1 min
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6
Take the exit slight right toward US 20 West, US 26 West, WY 220 West: Shoshoni, Port of Entry
1757 ft · 43 sec
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7
Keep slight left
577 ft · 17 sec
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8
Turn right
2.7 mi · 3 min
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9
Continue on Casper West Belt
7.3 mi · 9 min · Casper West Belt
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10
Turn right onto County Road 308
63.7 mi · 1 hr 12 min · County Road 308
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11
Continue straight
44.1 mi · 51 min
-
12
Turn right onto West Spruce Street
1.5 mi · 2 min · West Spruce Street
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13
Take the ramp right
1 km · 1 min
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14
Merge slight left onto Dwight D. Eisenhower Highway
103.6 mi · 1 hr 40 min · Dwight D. Eisenhower Highway
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15
Take the exit slight right toward I 80 Business West, US 30 Business West
2755 ft · 48 sec
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16
Turn left onto 9th Street
2579 ft · 51 sec · 9th Street
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17
Turn left onto South Side Belt Route
2032 ft · 41 sec · South Side Belt Route
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18
Turn slight right
70 m · 10 sec
-
19
Turn straight onto James Drive
813 ft · 25 sec · James Drive
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20
Turn left onto Virginia Street
905 ft · 47 sec · Virginia Street
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21
Turn left onto Edgar Street
789 ft · 22 sec · Edgar Street
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22
At the end of the road, turn right onto Agate Street
129 m · 24 sec · Agate Street
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23
Turn left onto Collins Street
26 m · 4 sec · Collins Street
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24
Arrive at your destination
0 m · 1 sec · Collins Street
Car Route Details
A richer read on the saved driving route between Bar Nunn 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.
Scattered Rain Showers leaving Bar Nunn and Partly Sunny near Rock Springs.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Bar Nunn to Rock Springs?
The road trip is about 229.1 miles (368.7 km) and usually takes 03h 56m 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 114.5 miles from Bar Nunn and 114.6 miles from Rock Springs.
How much longer is the road route than the straight-line distance?
The direct path is about 172.6 miles (277.7 km), while the road route adds roughly 56.5 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 9:08 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $31.46 one way or $62.91 round trip. Estimated CO2 is about 71.8 kg one way.
What should you check before leaving?
Before you leave, expect Scattered Rain Showers around Bar Nunn and Partly 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 Bar Nunn and Rock Springs. Straight-line distance: 172.56 mi (277.71 km).
#1 Bar Nunn
Town of the United States
| Population | 2,870 |
| Coordinates | 42.9135800, -106.3433600 |
| Altitude | 1611 |
| 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: 369 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 38m |
| 40 mph (64.37 km/h) | 05h 43m |
| 50 mph (80.47 km/h) | 04h 34m |
| 60 mph (96.56 km/h) | 03h 49m |
| 70 mph (112.65 km/h) | 03h 16m |
| 80 mph (129 km/h) | 02h 51m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $31.46 | $62.91 |
| Mid-grade | $4.23 | $34.19 | $68.37 |
| Premium | $4.55 | $36.76 | $73.51 |
| Diesel | $5.41 | $43.73 | $87.46 |
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 · May 07, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.