Origin
Guernsey, WY
Morning in Guernsey on Thursday
Local time
10:53 AM
MDT
Current temp
76°F
Unavailable
Live forecast
Trip from Guernsey, WY to Casper, WY
Last recalculated Apr 16, 2026
Drive Time
1h 43m
Distance
111.4 mi
179 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$18
one way
EV Charging
Unknown
Best Time to Leave
4 AM
1h 36m
★
6 AM
1h 44m
8 AM
1h 59m
10 AM
1h 49m
12 PM
1h 47m
3 PM
1h 50m
5 PM
1h 58m
8 PM
1h 39m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Casper, WY
Taryn Elliott
Trip Overview
The drive from Guernsey, WY to Casper, WY covers 111.4 miles and takes about 1h 43m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on West Whalen Street, Highway 26, I 25 for much of the mileage, and the overall profile is turn-heavy local drive. At current regular gas prices, budget about $17.65 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
55.7 miles from Guernsey, WY
A natural place for your longest stop of the day , about 51m into the drive .
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 1h 43m. Total distance: 111.4 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 43m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (0%). Straightforward navigation.
Scenic Drive
Turn-heavy local drive route profile.
Drive Character
Expect a 1h 43m drive with frequent turns across 111.4 miles of local and secondary roads.
This route has more turning and local-road decision points than a simple highway run.
There are about 9 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
West Whalen Street is one of the defining roads on this drive.
How Hard Is This Drive?
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. Navigation is very simple - set it and forget it for most of the drive.
Driving Effort
1/10
Very easy - short and simple to drive
Balances navigation complexity with total wheel time.
The drive from Guernsey, WY to Casper, WY is easy. At 1h 43m with 0% highway, most drivers will find it relaxed and low-stress.
Where does it get tricky?
This route does not have any notably tricky sections. Most of the drive from Guernsey, WY to Casper, WY is straightforward, with well-signed roads and simple exits.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| West Whalen Street | — | — |
| Highway 26 | — | — |
| I 25 | — | — |
| East F Street | — | — |
| Bryan Stock Trail | — | — |
| East Sunlight Drive | — | — |
Some road-level metrics are being recalculated.
Longest stretch:
West Whalen Street
— detailed segment metrics are refreshing.
Turn-by-Turn Driving Directions
Step-by-step road directions between Guernsey, WY and Casper, WY.
1
Start on South Wyoming Avenue
56 ft
·
7 sec
·
South Wyoming Avenue
2
Turn left onto West Whalen Street
0.5 mi
·
1 min
·
West Whalen Street
3
Continue on Highway 26
15 mi
·
16 min
·
Highway 26
4
Keep slight right
94 mi
·
1 hr 34 min
5
Take the exit slight right toward I 25 Business, US 20, US 26, US 87: North Beverly Street, Bryan Stock Trail
0.1 mi
·
16 sec
·
I 25 Business, US 20, US 26, US 87: North Beverly Street, Bryan Stock Trail
6
Turn straight onto East F Street
325 ft
·
10 sec
·
East F Street
7
Turn right onto Bryan Stock Trail
1.1 mi
·
1 min
·
Bryan Stock Trail
8
Turn left onto East Sunlight Drive
0.9 mi
·
3 min
·
East Sunlight Drive
9
Arrive at your destination
Trip Plan
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 55.7 miles from Guernsey, WY, or about 51m into the drive.
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 25 miles or 23m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 55.7 miles or 51m 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 24m
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 Guernsey, WY so your first major turns are already loaded.
Day 1
Settle into the route from Guernsey, WY
This is one driving day of about 111.4 miles and 1h 43m.
Your first comfortable stop window is around 25 miles from Guernsey, WY.
This route can stay practical as a one-day drive if traffic stays reasonable.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 55.7 mi from Guernsey, WY · 51m into the drive
Mid-route town
Meal stop
56 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
Pacing Suggestions
Fuel and coffee
A short stop after about 25 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 55.7 miles from Guernsey, WY, which is a good place for a longer meal and fuel stop.
Arriving in Casper, WY
The final approach into Casper, WY usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$17.65 one way
$35.31 round trip
$4.03/gal
25.4 MPG avg
39 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.22 | $18.50 | $37.01 |
| premium | $4.53 | $19.87 | $39.74 |
| diesel | $5.61 | $24.60 | $49.19 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$18
Meals
$25–$50
Total
$43–$68
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 39 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $12 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 33.4 | 0 | $11.70 | $5.35 |
| Efficient EV | 27.9 | 0 | $9.75 | $4.46 |
| EV Truck/SUV | 44.6 | 0 | $15.60 | $7.13 |
Gas CO2
39 kg
EV CO2
13 kg (67% 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.
Destination
Casper, WY
Morning in Casper on Thursday
Local time
10:53 AM
MDT
Current temp
44°F
Unavailable
Live forecast
75°F
Douglas, WY
56 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
32 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
1h 43m 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 Guernsey, WY to Casper, WY covers 111.4 miles and takes about 1h 43m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are West Whalen Street, Highway 26, I 25. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 55.7 miles from Guernsey, WY. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $17.65 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 Guernsey, WY to Casper, WY is easy. At 1h 43m with 0% highway, most drivers will find it relaxed and low-stress.
This route does not have any notably tricky sections. Most of the drive from Guernsey, WY to Casper, WY is straightforward, with well-signed roads and simple exits.
The route from Guernsey, WY to Casper, WY does not surface many named destination signs beyond the main corridor.
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