The drive from Kemmerer, WY to Casper, WY covers 316.6 miles and takes about 5h 44m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Dwight D. Eisenhower Highway, WY 220, US 30 for much of the mileage,
and the overall profile is mixed drive.
The longest uninterrupted segment is about 144.3 miles on Dwight D. Eisenhower Highway.
At current regular gas prices, budget about $50.04 one way before food or hotel costs.
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
158.3 miles from Kemmerer, WY
A natural place for your longest stop of the day
, about 2h 43m into the drive
.
Main Roads
Road
Distance
Duration
Dwight D. Eisenhower Highway
144.3 mi
2h 20m
WY 220
63.7 mi
1h 12m
US 30
45 mi
50m
3rd Street
44.1 mi
50m
Casper West Belt
7.3 mi
8m
US 20
3.1 mi
3m
West Spruce Street
1.7 mi
2m
Highway 30/189
1.3 mi
3m
Longest stretch:
Dwight D. Eisenhower Highway
— 144.3 mi, about 2h 20m
Turn-by-Turn Driving Directions
Step-by-step road directions between Kemmerer, WY and Casper, WY.
1
Start on this road
151 ft·13 sec·this road
2
Turn right onto Garnet Street
178 ft·9 sec·Garnet Street
3
Turn right onto US 30; US 189
0.1 mi·20 sec·Pine Street
4
Continue on US 30; US 189
0.2 mi·34 sec·Coral Street
5
Continue on US 30; US 189
0.2 mi·15 sec·Central Avenue
6
Continue on US 30; US 189
0.9 mi·2 min·Highway 30/189
7
Continue on US 30; US 189
0.4 mi·55 sec·Highway 30/189
8
Continue on US 30; US 189
0.5 mi·58 sec·US Highway 30/189
9
Take the ramp onto US 30
44 mi·47 min·US 30
10
Keep slight left at fork onto US 30
1.2 mi·2 min·US 30
Toward I 80 East
11
Merge onto I 80; US 30
144 mi·2 hr 20 min·Dwight D. Eisenhower Highway
12
Take the exit onto WY 789
0.4 mi·52 sec·WY 789
Toward I 80 Business East, WY 789 North: Rawlins
13
Turn left onto I 80 Bus; US 30 Bus; WY 789
1.7 mi·2 min·West Spruce Street
14
Turn left onto US 287; WY 789
44 mi·50 min·3rd Street
15
Continue on WY 220
64 mi·1 hr 12 min·WY 220
16
Turn left onto WY 257
7.3 mi·8 min·Casper West Belt
17
Continue on US 20; US 26
2.7 mi·3 min·US 20; US 26
18
Take the exit
2.5 mi·3 min
19
Take the exit onto US 20; US 26; US 87
0.3 mi·41 sec·US 20; US 26; US 87
Toward US 20 East, US 26 East, US 87 South: North Beverly Street, Bryan Stock Trail
20
At end of road, turn left onto I 25 Business
1.1 mi·2 min·Bryan Stock Trail
21
Turn left onto East Sunlight Drive
0.9 mi·3 min·East Sunlight Drive
22
Arrive at destination
North Sunlight Drive
Trip Plan
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 158.3 miles from Kemmerer, WY, or about 2h 43m into the drive.
The longest continuous stretch on this route runs about 144.3 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 70 miles or 1h 17m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 158.3 miles or 2h 43m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 34m
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 Kemmerer, 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 Kemmerer, WY
This is one driving day of about 316.6 miles and 5h 44m.
Your first comfortable stop window is around 70 miles from Kemmerer, 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 Dwight D. Eisenhower Highway for about 144.3 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 13
5 decision points cluster between mile 0 and 314.2 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0 mi into trip|~0m in|Garnet Street
Turn right onto Garnet Street
Navigation decision point
5
0.1 mi into trip|~0m in|US 30; US 189 / Pine Street
Turn right onto US 30; US 189 / Pine Street
Navigation decision point
5
46.3 mi into trip|~53m in|US 30
Keep slight left at fork onto US 30 toward I 80 East
Highway fork - watch signs carefully
Toward I 80 East
5
191.8 mi into trip|~3h 15m in|WY 789
Take the exit onto WY 789 toward I 80 Business East, WY 789 North: Rawlins
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward I 80 Business East, WY 789 North: Rawlin...
5
314.2 mi into trip|~5h 38m in|US 20; US 26; US 87
Take the exit onto US 20; US 26; US 87 toward US 20 East, US 26 East, US 87 South: North Beverly Street, Bryan Stock Trail
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward US 20 East, US 26 East, US 87 South: Nor...
Fuel & Cost
Regular Gas
$50.04 one way
$100.09 round trip
$4.03/gal25.4 MPG avg111 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.22
$52.46
$104.91
premium
$4.53
$56.33
$112.67
diesel
$5.61
$69.72
$139.45
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$50
Meals
$25–$50
Total
$75–$100
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 110.5 kg one way.
Prices: EIA weekly data, 2026-04-13.
EV Charging Along Route
10 DC fast chargers
· Coverage: excellent
White Mountain Mall - Tesla Supercharger
Rock Springs, WY
Tesla
8 DCFC
Fairfield Inn & Suites by Marriott - Tesla Supercharger
Rawlins, WY
Tesla
8 DCFC
Hat Six Travel Center - Tesla Supercharger
Evansville, WY
Tesla
8 DCFC
Kroger Smiths 182 (Rock Springs, WY)
Rock Springs, WY
Electrify America
6 DCFC
Flying J 764
Rock Springs, WY
eVgo Network
4 DCFC
Pilot Flying J - 1251
Wamsutter, WY
eVgo Network
4 DCFC
Flying J 763
Rawlins, WY
eVgo Network
4 DCFC
Kroger-City Market 412 (Rawlins, WY)
Rawlins, WY
Electrify America
4 DCFC
eVgo Network: 4
Tesla: 3
Electrify America: 3
Station data from NREL Alternative Fuel Stations database.
Driving Electric?
About $33 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
95
1
$33.24
$15.20
Efficient EV
79.2
0
$27.70
$12.66
EV Truck/SUV
126.6
1
$44.32
$20.26
Gas CO2
111 kg
EV CO2
37 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.
Forecast as of Apr 15, 2026
Origin
Kemmerer, WY
Afternoon
in Kemmerer on Saturday
Local time
12:43 PM
MDT
Current temp
60°F
Unavailable
Live forecast
Destination
Casper, WY
Afternoon
in Casper on Saturday
Local time
12:43 PM
MDT
Current temp
44°F
Unavailable
Live forecast
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
16 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
5h 44m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Fossil Butte National Monument
National Monument
In the ridges of southwest Wyoming are some of the best-preserved fossils in the world. They tell the story of ancient life in a warm, wet environment in and around a freshwater lake. Stingrays swam i...
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
The drive from Kemmerer, WY to Casper, WY covers 316.6 miles and takes about 5h 44m, using a mix of highways and local roads.
Expect a mix of faster highway mileage and slower local approaches near the beginning or end.
There are about 22 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Dwight D. Eisenhower Highway is the longest continuous segment at about 144.3 miles.
How Hard Is This Drive?
4/10
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 early in the drive near Garnet Street.
Driving Effort4/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 5h 44m drive. You will face about 13 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: near the start (Garnet Street): Navigation decision point; at 0.1 miles (US 30; US 189 / Pine Street): Navigation decision point; at 46.3 miles (US 30): Highway fork - watch signs carefully.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 5h 44m. Total distance: 316.6 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Mixed drive route profile with national parks nearby.
Frequently Asked Questions
The drive from Kemmerer, WY to Casper, WY covers 316.6 miles and takes about 5h 44m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Dwight D. Eisenhower Highway, WY 220, US 30. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 158.3 miles from Kemmerer, WY. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $50.17 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.
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.
This is a straightforward 5h 44m drive. You will face about 13 decision points, but nothing that requires special attention if you follow navigation.
The main spots that need attention: near the start (Garnet Street): Navigation decision point; at 0.1 miles (US 30; US 189 / Pine Street): Navigation decision point; at 46.3 miles (US 30): Highway fork - watch signs carefully.
The route from Kemmerer, WY to Casper, WY does not surface many named destination signs beyond the main corridor.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, NREL for EV charging, and NPS for national parks. See our methodology for refresh cadence and limitations.
