Rock Springs, WY to Sheridan, WY is 371 miles and takes about 6h 27m via I 25, Dwight D. Eisenhower Highway, and WY 220, with a fuel budget near $57 and enough daylight to finish in a day. This drive stays within Wyoming, moving from the Mountain West region to another part of the Mountain West. You'll experience a mix of highway cruising and surface road driving. Given the relatively short duration, it's a manageable one-day trip, but factor in potential delays.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
185.5 miles from Rock Springs, WY
A natural place for your longest stop of the day
, about 3h 17m into the drive
.
Main Roads
Road
Distance
Duration
I 25
110.7 mi
1h 44m
Dwight D. Eisenhower Highway
103.9 mi
1h 40m
WY 220
63.7 mi
1h 12m
3rd Street
44.1 mi
50m
US 87
31.5 mi
33m
Casper West Belt
7.3 mi
8m
US 20
3 mi
3m
Coffeen Avenue
1.8 mi
2m
Longest stretch:
I 25
— 110.7 mi, about 1h 44m
Traffic on I-25
Hour-of-day weekday pattern from 16 FHWA count stations on your route.
Peak
3 PM
~184 veh/hr typical
· worst 277
Quietest
1 AM
~16 veh/hr
Peak-to-quiet ratio
11.5×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 86 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Rock Springs, WY and Sheridan, WY.
1
Start on Collins Street
84 ft·7 sec·Collins Street
2
Turn right onto Agate Street
422 ft·18 sec·Agate Street
3
At end of road, turn left onto Edgar Street
0.1 mi·25 sec·Edgar Street
4
Turn right onto Virginia Street
0.2 mi·40 sec·Virginia Street
5
At end of road, turn right onto James Drive
0.2 mi·32 sec·James Drive
6
At end of road, turn left onto WY 376
0.4 mi·48 sec·South Side Belt Route
7
Turn right onto I 80 Business; US 30 Business
0.4 mi·38 sec·9th Street
8
Take the ramp
0.4 mi·29 sec
9
Merge onto I 80; US 30
104 mi·1 hr 40 min·Dwight D. Eisenhower Highway
10
Take the exit onto WY 789
0.4 mi·52 sec·WY 789
Toward I 80 Business East, WY 789 North: Rawlins
11
Turn left onto I 80 Bus; US 30 Bus; WY 789
1.7 mi·2 min·West Spruce Street
12
Turn left onto US 287; WY 789
44 mi·50 min·3rd Street
13
Continue on WY 220
64 mi·1 hr 12 min·WY 220
14
Turn left onto WY 257
7.3 mi·8 min·Casper West Belt
15
Continue on US 20; US 26
3.0 mi·3 min·US 20; US 26
16
Turn left
0.4 mi·50 sec
Toward I 25 North, US 87 North: Midwest
17
Merge onto I 25; US 87
111 mi·1 hr 44 min·I 25; US 87
18
Keep slight left at fork onto US 87
31 mi·33 min·US 87
Toward I 90 West, US 87 North: Sheridan
19
Take the exit onto I 90
0.4 mi·57 sec·I 90
Toward Brundage Lane
20
Turn left onto I 90 Business; US 14; US 87
0.3 mi·36 sec·East Brundage Lane
21
Turn right onto I 90 Business; US 14 Business; US 87 Business
1.8 mi·2 min·Coffeen Avenue
22
Turn right onto I 90 Business; US 14 Business; US 87 Business
0.1 mi·18 sec·South Main Street
23
Turn left onto West Loucks Street
80 ft·1 sec·West Loucks Street
24
Arrive at destination
West Loucks Street
Trip Plan
For this 6h 27m drive, leaving in the morning is ideal to ensure you have ample daylight. With only one recommended stop, you can plan for a longer stretch of driving at once. The longest continuous driving segment is 110.7 miles on I 25, so be prepared for that. Keep an eye on your fuel levels, especially as you move onto WY 220, where services might be more spread out. The estimated fuel cost is $57, so budget accordingly.
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 185.5 miles from Rock Springs, WY, or about 3h 17m into the drive.
The longest continuous stretch on this route runs about 110.7 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 82 miles or 1h 21m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 185.5 miles or 3h 17m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 5h 24m
Traffic, exits, and arrival timing usually matter more near Sheridan, WY than in the middle of the route.
Before You Leave
+
Open the route before leaving Rock Springs, WY so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Rock Springs, WY
This is one driving day of about 371 miles and 6h 27m.
Your first comfortable stop window is around 82 miles from Rock Springs, WY.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 25 for about 110.7 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 20
5 decision points cluster between mile 0 and 336.9 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0 mi into trip|~0m in|Agate Street
Turn right onto Agate Street
Navigation decision point
5
0.1 mi into trip|~0m in|Edgar Street
At end of road, turn left onto Edgar Street
Navigation decision point
5
0.2 mi into trip|~0m in|Virginia Street
Turn right onto Virginia Street
Navigation decision point
5
0.4 mi into trip|~1m in|James Drive
At end of road, turn right onto James Drive
Navigation decision point
6
336.9 mi into trip|~5h 48m in|US 87
Keep slight left at fork onto US 87 toward I 90 West, US 87 North: Sheridan
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward I 90 West, US 87 North: Sheridan
Fuel & Cost
Regular Gas
$64.34 one way
$128.68 round trip
$4.41/gal25.4 MPG avg130 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.61
$67.29
$134.58
premium
$4.95
$72.30
$144.60
diesel
$5.60
$81.78
$163.56
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$64
Meals
$25–$50
Total
$89–$114
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 129.8 kg one way.
Prices: EIA weekly data, 2026-08-31.
Driving Electric?
About $39 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
111.3
1
$38.96
$17.81
Efficient EV
92.8
1
$32.46
$14.84
EV Truck/SUV
148.4
1
$51.94
$23.74
Gas CO2
130 kg
EV CO2
43 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Aug 20, 2026
Origin
Rock Springs, WY
Late night
in Rock Springs on Wednesday
Local time
1:25 AM
MDT
Current temp
55°F
Mostly Clear
WSW 5 mph0% chanceLive forecast
Destination
Sheridan, WY
Late night
in Sheridan on Wednesday
Local time
1:25 AM
MDT
Current temp
52°F
Mostly Clear
SW 1 mph0% chanceLive forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
3 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
6h 27m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
This route covers 371 miles, with 56% on highways. You'll encounter a continuous stretch of 110.7 miles on I 25 before transitioning to surface roads. Expect a mix of driving conditions, starting with faster highway travel and then shifting to more rural cruising on WY 220. The transition from highway to surface roads will be noticeable as exit frequency decreases.
56% highway, the rest on surface roads — varied driving throughout.
24 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 110.7 mi on I 25.
How Hard Is This Drive?
4/10
This route mixes highway mileage with some local-road sections near the start or finish. There are only a few real navigation decisions along the way. The trickiest moment comes early in the drive near Agate Street.
Driving Effort4/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
The route itself is not hard, but at 6h 27m, endurance matters. Plan breaks every 2-3 hours. The 20 decision points are all manageable with basic attention.
Where does it get tricky?
The main spots that need attention: near the start (Agate Street): Navigation decision point; at 0.1 miles (Edgar Street): Navigation decision point; at 0.2 miles (Virginia Street): Navigation decision point.
Rock Springs is the biggest city in Sweetwater County in Southwest Wyoming. It had a population of 23,000 in 2019. Rock Springs' nickname is: "Home of 56 Nationalities". The town has a rich western and coal mining history.
The longest stretch is about 110.7 miles on I 25. The full list of main roads is in the Roads section above.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
It helps. This is a long drive, so arriving tired and in the dark compounds. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Sheridan, WY before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
Mostly yes along the main roads, but rural stretches through WY can have sparse or no coverage. Before you leave, download offline Google Maps or Apple Maps for the route, and consider downloading music or podcasts instead of streaming. If you depend on data for navigation, keep a paper backup of the turn-by-turn directions.
The main spots that need attention: near the start (Agate Street): Navigation decision point; at 0.1 miles (Edgar Street): Navigation decision point; at 0.2 miles (Virginia Street): Navigation decision point.
Not recommended in a single day. At 6.5 hours each way, a round trip means 12.9 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Sheridan, WY before the return drive.
