How far is Kemmerer, WY from Casper, WY?
The driving distance from Kemmerer, WY to Casper, WY is about 315.8 miles (508.3 km), with a travel time of about 05h 26m by car.
- The straight-line flight distance is about 228.2 miles (367.2 km).
- For a round trip, plan for roughly 10h 52m 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 of the United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance T-storms
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Kemmerer and Casper.
Turn-by-Turn Driving Directions
Step-by-step road directions between Kemmerer and Casper.
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1
Start on the route
46 m · 13 sec
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2
Turn right onto Garnet Street
54 m · 10 sec · Garnet Street
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3
Turn right onto Pine Street
723 ft · 21 sec · Pine Street
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4
Continue on Coral Street
1198 ft · 34 sec · Coral Street
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5
Continue on Central Avenue
901 ft · 15 sec · Central Avenue
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6
Continue on Highway 30/189
1.5 km · 2 min · Highway 30/189
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7
Continue on Highway 30/189
2107 ft · 56 sec · Highway 30/189
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8
Continue on US Highway 30/189
2677 ft · 59 sec · US Highway 30/189
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9
Take the ramp left
43.8 mi · 47 min
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10
Keep slight left to continue on I 80 East
1.2 mi · 3 min
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11
Merge slight left onto Dwight D. Eisenhower Highway
144.3 mi · 2 hr 20 min · Dwight D. Eisenhower Highway
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12
Take the exit slight right toward I 80 Business East, WY 789 North: Rawlins
1997 ft · 52 sec
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13
Turn left onto West Spruce Street
1.7 mi · 3 min · West Spruce Street
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14
Turn left onto 3rd Street
44.1 mi · 51 min · 3rd Street
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15
Continue straight
63.7 mi · 1 hr 13 min
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16
Turn left onto Casper West Belt
7.3 mi · 9 min · Casper West Belt
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17
Continue straight
2.7 mi · 3 min
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18
Take the exit right
2.5 mi · 4 min
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19
Take the exit slight right toward US 20 East, US 26 East, US 87 South: North Beverly Street, Bryan Stock Trail
1755 ft · 41 sec
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20
At the end of the road, turn left onto Bryan Stock Trail
1.1 mi · 2 min · Bryan Stock Trail
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21
Turn left onto East Sunlight Drive
1.5 km · 4 min · East Sunlight Drive
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22
Arrive at your destination
0 m · 1 sec · North Sunlight Drive
Car Route Details
A richer read on the saved driving route between Kemmerer and Casper.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Dwight D. Eisenhower Highway
Merge slight left onto Dwight D. Eisenhower Highway
144 mi · 02h 20m
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.
Slight Chance T-storms leaving Kemmerer and Mostly Sunny near Casper.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Kemmerer to Casper?
The road trip is about 315.8 miles (508.3 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?
Wamsutter is a useful midpoint, sitting about 158 miles from Kemmerer and 157.8 miles from Casper.
How much longer is the road route than the straight-line distance?
The direct path is about 228.2 miles (367.2 km), while the road route adds roughly 87.6 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 6:08 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $43.41 one way or $86.81 round trip. Estimated CO2 is about 99.1 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance T-storms around Kemmerer and Mostly Sunny near Casper.
Flight Path Map
This map shows the direct air route between Kemmerer and Casper. Straight-line distance: 228.17 mi (367.2 km).
#1 Kemmerer
City in Wyoming, USA, seat of Lincoln County
| Population | 2,763 |
| Coordinates | 41.7924500, -110.5376700 |
| Altitude | 2118 |
| Country | United States |
#2 Casper
The most populous city in Natrona County, Wyoming.
| Population | 58,498 |
| Coordinates | 42.8666300, -106.3130800 |
| Altitude | 1560 |
| Country | United States |
End: North Sunlight Drive (-106.309604, 42.868632)
Estimated Travel Time
Distance: 508 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 31m |
| 40 mph (64.37 km/h) | 07h 53m |
| 50 mph (80.47 km/h) | 06h 18m |
| 60 mph (96.56 km/h) | 05h 15m |
| 70 mph (112.65 km/h) | 04h 30m |
| 80 mph (129 km/h) | 03h 56m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $43.41 | $86.81 |
| Mid-grade | $4.23 | $47.18 | $94.35 |
| Premium | $4.55 | $50.72 | $101.44 |
| Diesel | $5.41 | $60.34 | $120.69 |
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 · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.