How far is Rock Springs, WY from Douglas, WY?

The driving distance from Rock Springs, WY to Douglas, WY is about 276.7 miles (445.3 km), with a travel time of about 04h 33m by car.

  • The straight-line flight distance is about 211.7 miles (340.7 km).
  • For a round trip, plan for roughly 09h 06m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
276.69 mi
04h 33m
Flight
211.72 mi
340.73 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from Rock Springs.

Flight Distance

Direct air line
211.72 mi
Kilometers
340.73 km
Flight Time
00h 25m

Driving Distance

Road route
276.69 mi
Kilometers
445.29 km
Drive Time
04h 33m

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 04h 33m.

Arrival Snapshot
Arrive in Douglas
Sat, Apr 25, 2:39 PM MDT
Return by in Rock Springs
Sat, Apr 25, 7:12 PM MDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Rock Springs
2026-04-25T10:05
Arrive Douglas
Sat, Apr 25, 2:39 PM MDT
Route Timing
04h 33m
One way by road
Best Departure Window
6:00 AM to 8:00 AM MDT
Leave early for more breathing room
Arrive between
10:33 AM to 12:33 PM MDT

An early departure helps you fit a real stop into the day without turning the return into a late-night drive.

Leave by
7:54 AM MDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Rock Springs
9:00 PM MDT
Early departure recommended

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.

Mid-route stop
Bairoil
WY

Town of the United States

From Rock Springs
138.2 mi
02h 16m
To Douglas
138.5 mi
02h 16m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
54°F
Saturday

Mostly Sunny

Starts
Sat, Apr 25 6:00 AM MDT
Wind
6 to 14 mph SSE
Destination
50°F
Saturday

Chance Snow Showers

Starts
Sat, Apr 25 6:00 AM MDT
Wind
5 to 15 mph E

Driving Route Map

The map below follows the saved road route between Rock Springs and Douglas.

Turn-by-Turn Driving Directions

Step-by-step road directions between Rock Springs and Douglas.

  1. 1

    Start on Collins Street

    26 m · 7 sec · Collins Street

  2. 2

    Turn right onto Agate Street

    129 m · 19 sec · Agate Street

  3. 3

    At the end of the road, turn left onto Edgar Street

    789 ft · 26 sec · Edgar Street

  4. 4

    Turn right onto Virginia Street

    905 ft · 40 sec · Virginia Street

  5. 5

    At the end of the road, turn right onto James Drive

    977 ft · 33 sec · James Drive

  6. 6

    At the end of the road, turn left onto South Side Belt Route

    2190 ft · 48 sec · South Side Belt Route

  7. 7

    Turn right onto 9th Street

    2182 ft · 38 sec · 9th Street

  8. 8

    Take the ramp right

    1916 ft · 30 sec

  9. 9

    Merge slight left onto Dwight D. Eisenhower Highway

    103.9 mi · 1 hr 41 min · Dwight D. Eisenhower Highway

  10. 10

    Take the exit slight right toward I 80 Business East, WY 789 North: Rawlins

    1997 ft · 52 sec

  11. 11

    Turn left onto West Spruce Street

    1.7 mi · 3 min · West Spruce Street

  12. 12

    Turn left onto 3rd Street

    44.1 mi · 51 min · 3rd Street

  13. 13

    Continue straight

    63.7 mi · 1 hr 13 min

  14. 14

    Turn left onto Casper West Belt

    7.3 mi · 9 min · Casper West Belt

  15. 15

    Continue straight

    2.7 mi · 3 min

  16. 16

    Take the exit right

    49 mi · 52 min

  17. 17

    Take the exit slight right toward I 25, WY 59: Douglas, Gillette

    2.2 mi · 4 min

  18. 18

    Turn left

    21 m · 5 sec

  19. 19

    Arrive at your destination

    0 m · 1 sec

Car Route Details

A richer read on the saved driving route between Rock Springs and Douglas.

OSRM road route
Drive Character

Interchange-aware route

The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.

Directions
19 steps
10 turns on the saved route
Ramps & Exits
5
1 merges, 4 ramps or exits
Navigation Density
6.9 / 100 mi
Decision points by distance
Main Roads
3rd Street
108 mi · 39%
Dwight D. Eisenhower Highway
104 mi · 38%
Casper West Belt
59 mi · 21%
I 25
2.21 mi · 1%
West Spruce Street
1.73 mi · 1%
9th Street
0.78 mi
Longest Stretch

Dwight D. Eisenhower Highway

Merge slight left onto Dwight D. Eisenhower Highway

104 mi · 01h 41m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

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.

Drive Time
04h 33m
Long day trip
Same-Day Return
09h 06m
Round-trip wheel time
Road vs Air
+65 mi
211.7 mi direct line
Halfway Stop
Bairoil
02h 16m from Rock Springs
Leave By
7:54 AM MDT
Early departure recommended
Weather Watch

Mostly Sunny leaving Rock Springs and Chance Snow Showers near Douglas.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Rock Springs to Douglas?

The road trip is about 276.7 miles (445.3 km) and usually takes 04h 33m 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?

Bairoil is a useful midpoint, sitting about 138.2 miles from Rock Springs and 138.5 miles from Douglas.

How much longer is the road route than the straight-line distance?

The direct path is about 211.7 miles (340.7 km), while the road route adds roughly 65 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 7:54 AM MDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $38.00 one way or $75.99 round trip. Estimated CO2 is about 86.7 kg one way.

What should you check before leaving?

Before you leave, expect Mostly Sunny around Rock Springs and Chance Snow Showers near Douglas.

Flight Path Map

This map shows the direct air route between Rock Springs and Douglas. Straight-line distance: 211.72 mi (340.73 km).

Rock Springs

#1 Rock Springs

City in Sweetwater County, Wyoming, United States

Population22,943
Coordinates41.5874600, -109.2029000
Altitude1947
CountryUnited States
Douglas

#2 Douglas

City in Converse County, Wyoming, United States

Population6,375
Coordinates42.7596900, -105.3822100
Altitude1474
CountryUnited States
Start: Collins Street (-109.202964, 41.587676)
End: (-105.382001, 42.75969)

Estimated Travel Time

Distance: 445 km by road

SpeedTime
30 mph (48.3 km/h)09h 13m
40 mph (64.37 km/h)06h 55m
50 mph (80.47 km/h)05h 32m
60 mph (96.56 km/h)04h 36m
70 mph (112.65 km/h)03h 57m
80 mph (129 km/h)03h 27m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
9.76 gal
36.96 L · about $38.00
Round trip
$75.99
19.52 gal · 73.92 L
Estimated CO2
86.7 kg one way
Round trip: 173.5 kg / 383 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.89 $38.00 $75.99
Mid-grade $4.23 $41.29 $82.59
Premium $4.55 $44.40 $88.80
Diesel $5.41 $52.82 $105.64

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 25, 2026

There is no time difference between Rock Springs and Douglas. The current time is 10:05:35.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.