Connecting Sheridan to Casper, this 149.9-mile journey across Wyoming’s Mountain West takes roughly 2 hours and 30 minutes. Given the manageable duration, this trip is perfectly suited for a single-day excursion, allowing you to reach your destination without the need for an overnight stay. You should budget approximately $23 for fuel to complete the transit. The route relies heavily on major thoroughfares, ensuring a straightforward and efficient connection between these two regional hubs. Whether you are heading south for business or regional exploration, the drive offers a reliable, no-nonsense path through the Wyoming landscape.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
75 miles from Sheridan, WY
A natural place for your longest stop of the day
, about 1h 15m into the drive
.
Main Roads
Road
Distance
Duration
US 87
114.2 mi
1h 48m
I 90
31.2 mi
31m
Coffeen Avenue
1.7 mi
2m
Bryan Stock Trail
1.1 mi
2m
East Sunlight Drive
0.9 mi
3m
US 20
0.3 mi
<1m
East Brundage Lane
0.3 mi
<1m
South Main Street
0.1 mi
<1m
Longest stretch:
US 87
— 114.2 mi, about 1h 48m
Turn-by-Turn Driving Directions
Step-by-step road directions between Sheridan, WY and Casper, WY.
1
Start on West Loucks Street
80 ft·5 sec·West Loucks Street
2
Turn right onto I 90 Business; US 14 Business; US 87 Business
0.1 mi·18 sec·South Main Street
3
Turn left onto I 90 Business; US 14 Business; US 87 Business
169 ft·3 sec·East Burkitt Street
Use the left lane.
4
Continue on I 90 Business; US 14 Business; US 87 Business
1.7 mi·2 min·Coffeen Avenue
5
Turn left onto I 90 Business; US 87; US 14 Business
0.3 mi·27 sec·East Brundage Lane
6
Take the ramp onto I 90
31 mi·31 min·I 90
7
Take the exit onto US 87
114 mi·1 hr 48 min·US 87
Exit 56BToward I 25 South, US 87 South: Casper
8
Take the exit onto US 20; US 26; US 87
0.3 mi·41 sec·US 20; US 26; US 87
Toward US 20 East, US 26 East, US 87 South: North Beverly Street, Bryan Stock Trail
9
At end of road, turn left onto I 25 Business
1.1 mi·2 min·Bryan Stock Trail
10
Turn left onto East Sunlight Drive
0.9 mi·3 min·East Sunlight Drive
11
Arrive at destination
North Sunlight Drive
Trip Plan
Since the drive is relatively short, you have the flexibility to depart at your convenience, though planning for a single stop will help break up the 149.9-mile transit. Given that the longest stretch is over 114 miles, ensure your vehicle is fueled up before leaving Sheridan to avoid any mid-route concerns, despite the modest $23 fuel estimate. Pay close attention to your speed as you transition from Coffeen Avenue onto the highway system to ensure a smooth start. Because this route is so direct, using your stop to stretch your legs mid-way will make the 2-hour and 30-minute duration feel significantly more comfortable. Prioritize a steady pace to make the most of this efficient Mountain West connection.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 75 miles from Sheridan, WY, or about 1h 15m into the drive.
The longest continuous stretch on this route runs about 114.2 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 33 miles or 35m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 75 miles or 1h 15m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h
Traffic, exits, and arrival timing usually matter more near Casper, WY than in the middle of the route.
Before You Leave
+
Open the route before leaving Sheridan, 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 Sheridan, WY
This is one driving day of about 149.9 miles and 2h 30m.
Your first comfortable stop window is around 33 miles from Sheridan, 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 US 87 for about 114.2 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 8
5 decision points cluster between mile 0 and 147.5 — 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|I 90 Business; US 14 Business; US 87 Business / South Main Street
Turn right onto I 90 Business; US 14 Business; US 87 Business / South Main Street
Navigation decision point
7
0.1 mi into trip|~0m in|I 90 Business; US 14 Business; US 87 Business / East Burkitt Street
Turn left onto I 90 Business; US 14 Business; US 87 Business / East Burkitt Street
Lane positioning matters here
Use the left lane.
4
1.9 mi into trip|~3m in|I 90 Business; US 87; US 14 Business / East Brundage Lane
Turn left onto I 90 Business; US 87; US 14 Business / East Brundage Lane
Navigation decision point
6
33.4 mi into trip|~35m in|US 87
Take the exit onto US 87 toward I 25 South, US 87 South: Casper
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 56B
Toward I 25 South, US 87 South: Casper
5
147.5 mi into trip|~2h 24m in|US 20; US 26; US 87
Take the exit onto US 20; US 26; US 87 toward US 20 East, US 26 East, US 87 South: North Beverly Street, Bryan Stock Trail
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward US 20 East, US 26 East, US 87 South: Nor...
Fuel & Cost
Regular Gas
$23.75 one way
$47.51 round trip
$4.03/gal25.4 MPG avg52 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.22
$24.90
$49.80
premium
$4.53
$26.74
$53.48
diesel
$5.61
$33.10
$66.19
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$24
Meals
$25–$50
Total
$49–$74
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 52.4 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $16 in charging
· 0 stops
· 65% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
45
0
$15.74
$7.20
Efficient EV
37.5
0
$13.12
$6.00
EV Truck/SUV
60
0
$20.99
$9.59
Gas CO2
52 kg
EV CO2
18 kg (65% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
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 Apr 15, 2026
Origin
Sheridan, WY
Evening
in Sheridan on Saturday
Local time
8:48 PM
MDT
Current temp
71°F
Unavailable
Live forecast
Destination
Casper, WY
Evening
in Casper on Saturday
Local time
8:48 PM
MDT
Current temp
44°F
Unavailable
Live forecast
69°F
Buffalo, WY
75 mi in
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
27 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
2h 30m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
Expect a highly efficient, highway-focused experience, as 97% of your travel time will be spent on high-speed roads like I-90 and US 87. The drive is defined by a significant 114.2-mile stretch on US 87, which serves as the backbone of your journey. You will navigate through Coffeen Avenue before transitioning onto these primary arteries, which keep the pace steady and predictable. While the interstate sections offer high-speed transit, the transition onto US 87 provides a consistent driving rhythm that dominates the majority of your time behind the wheel. It is a practical, utilitarian route designed for getting from point A to point B with minimal complexity.
97% highway — fuel and pacing are the main things to plan.
11 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 114.2 mi on US 87.
How Hard Is This Drive?
2/10
This is a straightforward highway drive that stays mostly on US 87 and I 90. Navigation is very simple - set it and forget it for most of the drive. The trickiest moment comes early in the drive near I 90 Business; US 14 Business; US 87 Business / South Main Street.
Driving Effort2/10
Very easy - short and simple to drive
Balances navigation complexity with total wheel time.
The drive from Sheridan, WY to Casper, WY is easy. At 2h 30m with 97% highway, most drivers will find it relaxed and low-stress.
Where does it get tricky?
The main spots that need attention: near the start (I 90 Business; US 14 Business; US 87 Business / South Main Street): Navigation decision point; at 0.1 miles (I 90 Business; US 14 Business; US 87 Business / East Burkitt Street): Lane positioning matters here; at 1.9 miles (I 90 Business; US 87; US 14 Business / East Brundage Lane): Navigation decision point.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 2h 30m. Total distance: 149.9 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
The longest stretch is about 114.2 miles on US 87. The full list of main roads is in the Roads section above.
Yes, with realistic expectations. Build in a stop roughly every 2 hours, have snacks and activities ready, and check the Nearby Places tabs for kid-friendly stops along the way.
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 (I 90 Business; US 14 Business; US 87 Business / South Main Street): Navigation decision point; at 0.1 miles (I 90 Business; US 14 Business; US 87 Business / East Burkitt Street): Lane positioning matters here; at 1.9 miles (I 90 Business; US 87; US 14 Business / East Brundage Lane): Navigation decision point.
Yes. A round trip is manageable in a single day if you plan a break at Casper, WY before heading back.
