Sheridan, WY to Bar Nunn, WY is 142.4 miles and takes about 2h 20m via US 87 and I 90, with a fuel budget near $23 and enough daylight to finish in a day. This is a straightforward, single-day trip primarily within Wyoming's Mountain West region. Given that it's a highway-focused drive with a high percentage of highway travel, expect efficient progress. This route is ideal if you're looking for a quick connection between these two points without extensive detours or complicated navigation.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
71.2 miles from Sheridan, WY
A natural place for your longest stop of the day
, about 1h 11m into the drive
.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 2h 20m. Total distance: 142.4 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
This drive is overwhelmingly highway-focused, with 97% of the journey taking place on major roads like US 87 and I 90. You'll experience long, uninterrupted stretches, including one segment of 106.5 miles on US 87, which means you can settle into a steady pace. While the bulk of the route is efficient highway driving, the inclusion of Coffeen Avenue at the end suggests a brief transition to local roads as you approach your destination. Expect consistent speed limits for most of the trip.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 12 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
US 87 is the longest continuous segment at about 106.5 miles.
How Hard Is This Drive?
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 Bar Nunn, WY is easy. At 2h 20m 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.
Critical Maneuvers
5 of 9 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
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
4
2.2 mi into trip|~3m in|I 90
Take the ramp onto I 90
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
Main Roads
Road
Distance
Duration
US 87
106.5 mi
1h 40m
I 90
31.2 mi
31m
Coffeen Avenue
1.7 mi
2m
Salt Creek Highway
1.6 mi
2m
East Brundage Lane
0.3 mi
<1m
Sunset Boulevard
0.3 mi
<1m
South Main Street
0.1 mi
<1m
Westwinds Road
0.1 mi
<1m
Longest stretch:
US 87
— 106.5 mi, about 1h 40m
Turn-by-Turn Driving Directions
Step-by-step road directions between Sheridan, WY and Bar Nunn, 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
107 mi·1 hr 40 min·US 87
Exit 56BToward I 25 South, US 87 South: Casper
8
Take the exit
0.5 mi·1 min
9
Turn right onto Westwinds Road
0.1 mi·18 sec·Westwinds Road
10
Turn left onto Salt Creek Highway
1.6 mi·2 min·Salt Creek Highway
11
Turn right onto Sunset Boulevard
0.3 mi·36 sec·Sunset Boulevard
12
Arrive at destination
Sunset Boulevard
Trip Plan
With a drive time of just over two hours, this route offers plenty of flexibility. You can depart anytime, but leaving in the morning will give you ample daylight and allow for a relaxed arrival in Bar Nunn. You'll want to keep an eye on your fuel gauge, as the longest stretch on US 87 is over 100 miles, and there are no planned stops in the data provided, so consider refueling before you leave Sheridan. The $23 fuel cost estimate is a good baseline, but check current prices. Given the short duration, you won't need to worry about splitting the drive.
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.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 71.2 miles from Sheridan, WY, or about 1h 11m into the drive.
The longest continuous stretch on this route runs about 106.5 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 31 miles or 33m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 71.2 miles or 1h 11m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 54m
Traffic, exits, and arrival timing usually matter more near Bar Nunn, 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 142.4 miles and 2h 20m.
Your first comfortable stop window is around 31 miles from Sheridan, WY.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on US 87 for about 106.5 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 71.2 mi from Sheridan, WY
· 1h 11m into the drive
Place data sourced from public business listings. Hours and availability may vary.
Fuel & Cost
Regular Gas
$22.57 one way
$45.13 round trip
$4.03/gal25.4 MPG avg50 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.22
$23.65
$47.31
premium
$4.53
$25.40
$50.80
diesel
$5.61
$31.44
$62.88
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$23
Meals
$25–$50
Total
$48–$73
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 49.8 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $15 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
42.7
0
$14.95
$6.84
Efficient EV
35.6
0
$12.46
$5.70
EV Truck/SUV
57
0
$19.94
$9.11
Gas CO2
50 kg
EV CO2
17 kg (66% 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
Late night
in Sheridan on Saturday
Local time
5:32 AM
MDT
Current temp
71°F
Unavailable
Live forecast
Destination
Bar Nunn, WY
Late night
in Bar Nunn on Saturday
Local time
5:32 AM
MDT
Current temp
72°F
Unavailable
Live forecast
69°F
Buffalo, WY
71 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
1 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
2h 20m 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.
Frequently Asked Questions
The drive from Sheridan, WY to Bar Nunn, WY covers 142.4 miles and takes about 2h 20m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are US 87, I 90, Coffeen Avenue. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 71.2 miles from Sheridan, WY. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $22.57 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
The drive from Sheridan, WY to Bar Nunn, WY is easy. At 2h 20m with 97% highway, most drivers will find it relaxed and low-stress.
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.
The route from Sheridan, WY to Bar Nunn, WY does not surface many named destination signs beyond the main corridor.
