How far is Green River, WY from Greybull, WY?
The driving distance from Green River, WY to Greybull, WY is about 279.1 miles (449.1 km), with a travel time of about 05h 26m by car.
- The straight-line flight distance is about 216.6 miles (348.6 km).
- For a round trip, plan for roughly 10h 53m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 05h 26m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Town in Fremont County, Wyoming, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Green River and Greybull.
Turn-by-Turn Driving Directions
Step-by-step road directions between Green River and Greybull.
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1
Start on North 1st East
11 m · 7 sec · North 1st East
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2
Turn left onto East Flaming Gorge Way
1.1 mi · 3 min · East Flaming Gorge Way
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3
Take the ramp straight toward I 80 East, US 30 East: Rock Springs
1.1 km · 1 min
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4
Merge slight left onto Dwight D. Eisenhower Highway
12.8 mi · 13 min · Dwight D. Eisenhower Highway
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5
Take the exit slight right toward US 191 North
1730 ft · 44 sec
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6
Continue on Elk Street
1.1 mi · 2 min · Elk Street
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7
Continue on US 191
38.1 mi · 43 min · US 191
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8
Turn right onto Highway 28
66.5 mi · 1 hr 15 min · Highway 28
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9
Continue straight
8.4 mi · 10 min
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10
Turn right
46.8 mi · 54 min
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11
Turn left onto Idaho Street
31.9 mi · 38 min · Idaho Street
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12
Turn left onto South 6th Street
1.3 km · 2 min · South 6th Street
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13
Continue on Park Street
32.4 mi · 39 min · Park Street
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14
Turn left onto North Railway Avenue
2336 ft · 1 min · North Railway Avenue
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15
Continue on Russell Avenue
606 ft · 22 sec · Russell Avenue
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16
Turn left onto North 10th Street
37.5 mi · 42 min · North 10th Street
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17
Turn left onto Greybull Avenue
82 m · 13 sec · Greybull Avenue
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18
Turn right onto North 7th Street
25 m · 4 sec · North 7th Street
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19
Arrive at your destination
0 m · 1 sec · North 7th Street
Car Route Details
A richer read on the saved driving route between Green River and Greybull.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Highway 28
Turn right onto Highway 28
66.5 mi · 01h 15m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Sunny leaving Green River and Sunny near Greybull.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Green River to Greybull?
The road trip is about 279.1 miles (449.1 km) and usually takes 05h 26m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Hudson is a useful midpoint, sitting about 139.4 miles from Green River and 139.6 miles from Greybull.
How much longer is the road route than the straight-line distance?
The direct path is about 216.6 miles (348.6 km), while the road route adds roughly 62.5 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 6:06 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $38.35 one way or $76.69 round trip. Estimated CO2 is about 87.5 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Green River and Sunny near Greybull.
Flight Path Map
This map shows the direct air route between Green River and Greybull. Straight-line distance: 216.6 mi (348.58 km).
#1 Green River
River in Wyoming, Utah, and Colorado, in the United States, that is a tributary of the Colorado River
| Population | 11,788 |
| Coordinates | 41.5285800, -109.4662500 |
| Altitude | 1864 |
| Country | United States |
#2 Greybull
Town in Big Horn County, Wyoming
| Population | 1,797 |
| Coordinates | 44.4891200, -108.0562100 |
| Altitude | 1156 |
| Country | United States |
End: Greybull (-108.05621, 44.48912)
Estimated Travel Time
Distance: 449 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 17m |
| 40 mph (64.37 km/h) | 06h 58m |
| 50 mph (80.47 km/h) | 05h 34m |
| 60 mph (96.56 km/h) | 04h 39m |
| 70 mph (112.65 km/h) | 03h 59m |
| 80 mph (129 km/h) | 03h 28m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $38.35 | $76.69 |
| Mid-grade | $4.23 | $41.68 | $83.35 |
| Premium | $4.55 | $44.81 | $89.62 |
| Diesel | $5.41 | $53.31 | $106.62 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Wyoming · May 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.