Origin
Cheyenne, WY
Night in Cheyenne on Thursday
Local time
9:22 PM
MDT
Current temp
72°F
Unavailable
Live forecast
Trip from Cheyenne, WY to Greybull, WY
Last recalculated Apr 17, 2026
Drive Time
6h 51m
Distance
379.1 mi
610 km
Drive Score
10/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$60
one way
EV Charging
Unknown
Best Time to Leave
4 AM
6h 40m
★
6 AM
6h 52m
8 AM
7h 15m
10 AM
7h 0m
12 PM
6h 58m
3 PM
7h 1m
5 PM
7h 14m
8 PM
6h 45m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Cheyenne, WY
Wikimedia Commons
Greybull, WY
Robert Schrader
Trip Overview
This 379.1-mile journey from Cheyenne, WY to Greybull, WY is a solid single-day drive, estimated to take about 6 hours and 51 minutes. You'll be spending just under half the time on major highways, with a significant 177.3-mile stretch on I 25. The estimated fuel cost for this trip is around $60. As both your origin and destination are in the Mountain West region, expect a drive characterized by wide-open spaces and dramatic landscapes. This route offers a straightforward path through Wyoming, making it a feasible day trip for those looking to cover ground efficiently.
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
189.6 miles from Cheyenne, WY
A natural place for your longest stop of the day , about 3h 9m into the drive .
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 6h 51m. Total distance: 379.1 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 51m drive, plan rest stops for pacing.
First-Time Driver
Mostly highway driving (48%). Straightforward navigation.
Drive Character
The drive is best described as a mixed experience, with 48% of the route on highways. You'll encounter a substantial 177.3-mile stretch on I 25, which provides a consistent, faster pace. As you progress, the West Yellowstone Highway and North 10th Street will introduce different driving conditions, likely involving more local traffic and potentially slower speeds. This variation means the road's personality shifts from open highway cruising to more community-focused travel, offering a dynamic feel behind the wheel.
Expect a mix of faster highway mileage and slower local approaches near the beginning or end.
There are about 23 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 25 is the longest continuous segment at about 177.3 miles.
How Hard Is This Drive?
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 around 0.1 miles in near Carey Avenue.
Driving Effort
4/10
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 51m, endurance matters. Plan breaks every 2-3 hours. The 13 decision points are all manageable with basic attention.
Where does it get tricky?
The main spots that need attention: at 0.1 miles (Carey Avenue): Navigation decision point; at 178.7 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 179.1 miles: Highway fork - watch signs carefully.
Critical Maneuvers
5 of 13 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
5
0.1 mi into trip
|
~0m in
|
Carey Avenue
Turn right onto Carey Avenue
Navigation decision point
5
178.7 mi into trip
|
~2h 56m in
Take the exit toward US 20 West, US 26 West, WY 220 West: Shoshoni, Port of Entry
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward US 20 West, US 26 West, WY 220 West: Sho...
4
179.1 mi into trip
|
~2h 57m in
Keep slight left at fork
Highway fork - watch signs carefully
4
182.1 mi into trip
|
~3h 1m in
|
US 20; US 26 / West Yellowstone Highway
Turn right onto US 20; US 26 / West Yellowstone Highway
Navigation decision point
5
275.9 mi into trip
|
~4h 47m in
|
US 20; WY 789 / Idaho Street
Turn right onto US 20; WY 789 / Idaho Street
Lane positioning matters here
Use the straight / left / right lanes.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Cheyenne, WY to Greybull, WY, road signs begin pointing toward Port Of Entry along the way.
Port Of Entry
178.7 mi in
|
~2h 56m
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 25 | 177.3 mi | 2h 53m |
| West Yellowstone Highway | 93.8 mi | 1h 46m |
| North 10th Street | 37.5 mi | 42m |
| Park Street | 32.4 mi | 39m |
| Idaho Street | 31.9 mi | 38m |
| US 20 | 3 mi | 3m |
| Randall Avenue | 0.9 mi | 1m |
| South 6th Street | 0.8 mi | 2m |
Longest stretch:
I 25
— 177.3 mi, about 2h 53m
Turn-by-Turn Driving Directions
Step-by-step road directions between Cheyenne, WY and Greybull, WY.
1
Start on West 24th Street
292 ft
·
12 sec
·
West 24th Street
2
Turn right onto Carey Avenue
0.1 mi
·
13 sec
·
Carey Avenue
3
Turn slight left onto Randall Avenue
0.9 mi
·
1 min
·
Randall Avenue
4
Turn right onto Hynds Boulevard
338 ft
·
5 sec
·
Hynds Boulevard
5
Take the ramp
0.2 mi
·
29 sec
6
Merge onto I 25; US 87
1.5 mi
·
1 min
·
I 25; US 87
7
Continue on I 25; US 85; US 87
3.9 mi
·
4 min
·
I 25; US 85; US 87
8
Continue on I 25; US 87
76 mi
·
1 hr 10 min
·
I 25; US 87
9
Continue on I 25; US 26; US 87
34 mi
·
31 min
·
I 25; US 26; US 87
10
Continue on I 25; US 20; US 26; US 87
62 mi
·
1 hr 5 min
·
I 25; US 20; US 26; US 87
11
Take the exit
0.3 mi
·
45 sec
Toward US 20 West, US 26 West, WY 220 West: Shoshoni, Port of Entry
12
Keep slight left at fork
350 ft
·
10 sec
13
Turn left onto US 20; US 26
3.0 mi
·
3 min
·
US 20; US 26
14
Turn right onto US 20; US 26
94 mi
·
1 hr 46 min
·
West Yellowstone Highway
15
Turn right onto US 20; WY 789
32 mi
·
38 min
·
Idaho Street
Use the straight / left / right lanes.
16
Turn left onto US 20; WY 789
0.8 mi
·
2 min
·
South 6th Street
Use the slight left / right lanes.
17
Continue on US 20; WY 789
32 mi
·
39 min
·
Park Street
Use the left / slight right lanes.
18
Turn left onto North Railway Avenue
0.4 mi
·
1 min
·
North Railway Avenue
19
Continue on Russell Avenue
0.1 mi
·
21 sec
·
Russell Avenue
20
Turn left onto US 16; US 20; WY 789
37 mi
·
42 min
·
North 10th Street
21
Turn left onto Greybull Avenue
268 ft
·
13 sec
·
Greybull Avenue
22
Turn right onto North 7th Street
82 ft
·
3 sec
·
North 7th Street
23
Arrive at destination
North 7th Street
Trip Plan
For this 6-hour, 51-minute drive, consider an early morning departure from Cheyenne to maximize daylight and allow for a relaxed pace. With only one recommended stop, plan for a midway break to stretch your legs and refuel. The longest uninterrupted stretch is 177.3 miles on I 25, so ensure you have sufficient fuel before embarking on this segment. Keep an eye on your fuel gauge, especially as you transition from I 25 to local roads, as services might be more spaced out in certain areas. The $60 fuel estimate is a good baseline, but always budget a little extra.
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 189.6 miles from Cheyenne, WY, or about 3h 9m into the drive.
The longest continuous stretch on this route runs about 177.3 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 83 miles or 1h 20m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 189.6 miles or 3h 9m 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 41m
Traffic, exits, and arrival timing usually matter more near Greybull, WY than in the middle of the route.
Before You Leave
+
Open the route before leaving Cheyenne, 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 Cheyenne, WY
This is one driving day of about 379.1 miles and 6h 51m.
Your first comfortable stop window is around 83 miles from Cheyenne, 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 177.3 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 189.6 mi from Cheyenne, WY · 3h 9m into the drive
Mid-route town
Meal stop
190 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 83 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 189.6 miles from Cheyenne, WY, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before I 25 if your tank is already low. That segment runs about 177.3 miles.
Arriving in Greybull, WY
The final approach into Greybull, WY usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Greybull, WY.
After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$60.07 one way
$120.15 round trip
$4.03/gal
25.4 MPG avg
133 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.22 | $62.97 | $125.94 |
| premium | $4.53 | $67.63 | $135.25 |
| diesel | $5.61 | $83.70 | $167.40 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$60
Meals
$25–$50
Total
$85–$110
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 132.6 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $40 in charging · 1 stop · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 113.7 | 1 | $39.81 | $18.20 |
| Efficient EV | 94.8 | 1 | $33.17 | $15.16 |
| EV Truck/SUV | 151.6 | 1 | $53.07 | $24.26 |
Gas CO2
133 kg
EV CO2
44 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.
Destination
Greybull, WY
Night in Greybull on Thursday
Local time
9:22 PM
MDT
Current temp
76°F
Unavailable
Live forecast
75°F
Riverton, WY
190 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
4 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
6h 51m 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.
Frequently Asked Questions
The drive from Cheyenne, WY to Greybull, WY covers 379.1 miles and takes about 6h 51m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 25, West Yellowstone Highway, North 10th Street. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 189.6 miles from Cheyenne, WY. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $60.07 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.
Plan about 1 meaningful break for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
The route itself is not hard, but at 6h 51m, endurance matters. Plan breaks every 2-3 hours. The 13 decision points are all manageable with basic attention.
The main spots that need attention: at 0.1 miles (Carey Avenue): Navigation decision point; at 178.7 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 179.1 miles: Highway fork - watch signs carefully.
On the drive from Cheyenne, WY to Greybull, WY, road signs begin pointing toward Port Of Entry along the way.
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