Origin
Riverton, WY
Afternoon in Riverton on Thursday
Local time
12:24 PM
MDT
Current temp
75°F
Unavailable
Live forecast
Trip from Riverton, WY to Casper, WY
Last recalculated Apr 16, 2026
Drive Time
2h 24m
Distance
123.5 mi
199 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$20
one way
EV Charging
Unknown
Best Time to Leave
4 AM
2h 15m
★
6 AM
2h 25m
8 AM
2h 45m
10 AM
2h 32m
12 PM
2h 30m
3 PM
2h 33m
5 PM
2h 44m
8 PM
2h 19m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Riverton, WY
Wikimedia Commons
Casper, WY
Taryn Elliott
Trip Overview
The drive from Riverton, WY to Casper, WY covers 123.5 miles and takes about 2h 24m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on US 20, North Federal Boulevard, Bryan Stock Trail for much of the mileage, and the overall profile is highway-focused drive. The longest uninterrupted segment is about 80 miles on US 20. At current regular gas prices, budget about $19.57 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
61.7 miles from Riverton, WY
A natural place for your longest stop of the day , about 1h 10m into the drive .
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 2h 24m. Total distance: 123.5 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
2h 24m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (65%). Straightforward navigation.
Drive Character
This is a 2h 24m highway drive covering 123.5 miles, with most of the trip on US 20 and North Federal Boulevard. The longest continuous stretch is about 80 miles on US 20.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 8 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
US 20 is the longest continuous segment at about 80 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on US 20 and North Federal Boulevard. Navigation is very simple - set it and forget it for most of the drive. The trickiest moment comes around 115.9 miles in near US 20; US 26.
Driving Effort
1/10
Very easy - short and simple to drive
Balances navigation complexity with total wheel time.
The drive from Riverton, WY to Casper, WY is easy. At 2h 24m with 65% highway, most drivers will find it relaxed and low-stress.
Where does it get tricky?
The main spots that need attention: at 115.9 miles (US 20; US 26): Navigation decision point; at 118.6 miles: Exit ramp - move to the correct lane early; at 121.1 miles (US 20; US 26; US 87): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 5 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
3
115.9 mi into trip
|
~2h 11m in
|
US 20; US 26
Turn left onto US 20; US 26
Navigation decision point
4
118.6 mi into trip
|
~2h 14m in
Take the exit
Exit ramp - move to the correct lane early
5
121.1 mi into trip
|
~2h 18m 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...
4
121.4 mi into trip
|
~2h 19m in
|
I 25 Business / Bryan Stock Trail
At end of road, turn left onto I 25 Business / Bryan Stock Trail
Navigation decision point
4
122.5 mi into trip
|
~2h 21m in
|
East Sunlight Drive
Turn left onto East Sunlight Drive
Navigation decision point
Main Roads
| Road | Distance | Duration |
|---|---|---|
| US 20 | 80 mi | 1h 31m |
| North Federal Boulevard | 39 mi | 44m |
| Bryan Stock Trail | 1.1 mi | 2m |
| East Sunlight Drive | 0.9 mi | 3m |
| North Sunlight Drive | — | — |
Some road-level metrics are being recalculated.
Longest stretch:
US 20
— 80 mi, about 1h 31m
Turn-by-Turn Driving Directions
Step-by-step road directions between Riverton, WY and Casper, WY.
1
Start on US 26; WY 789
39 mi
·
44 min
·
North Federal Boulevard
2
Continue on US 20; US 26
77 mi
·
1 hr 27 min
·
US 20; US 26
3
Turn left onto US 20; US 26
2.7 mi
·
3 min
·
US 20; US 26
4
Take the exit
2.5 mi
·
3 min
5
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
6
At end of road, turn left onto I 25 Business
1.1 mi
·
2 min
·
Bryan Stock Trail
7
Turn left onto East Sunlight Drive
0.9 mi
·
3 min
·
East Sunlight Drive
8
Arrive at destination
North Sunlight Drive
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 61.7 miles from Riverton, WY, or about 1h 10m into the drive.
The longest continuous stretch on this route runs about 80 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 27 miles or 30m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 61.7 miles or 1h 10m 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 55m
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 Riverton, 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 Riverton, WY
This is one driving day of about 123.5 miles and 2h 24m.
Your first comfortable stop window is around 27 miles from Riverton, WY.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on US 20 for about 80 miles.
Fuel & Cost
Regular Gas
$19.57 one way
$39.14 round trip
$4.03/gal
25.4 MPG avg
43 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.22 | $20.51 | $41.03 |
| premium | $4.53 | $22.03 | $44.06 |
| diesel | $5.61 | $27.27 | $54.53 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$20
Meals
$25–$50
Total
$45–$70
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 43.2 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $13 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 37.1 | 0 | $12.97 | $5.93 |
| Efficient EV | 30.9 | 0 | $10.81 | $4.94 |
| EV Truck/SUV | 49.4 | 0 | $17.29 | $7.90 |
Gas CO2
43 kg
EV CO2
14 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
Afternoon in Casper on Thursday
Local time
12:24 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
31 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
2h 24m 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 Riverton, WY to Casper, WY covers 123.5 miles and takes about 2h 24m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are US 20, North Federal Boulevard, Bryan Stock Trail. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 61.7 miles from Riverton, WY. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $19.57 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 Riverton, WY to Casper, WY is easy. At 2h 24m with 65% highway, most drivers will find it relaxed and low-stress.
The main spots that need attention: at 115.9 miles (US 20; US 26): Navigation decision point; at 118.6 miles: Exit ramp - move to the correct lane early; at 121.1 miles (US 20; US 26; US 87): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
The route from Riverton, WY to Casper, WY does not surface many named destination signs beyond the main corridor.
Was this helpful?
Thanks for your feedback!
Your tip has been submitted. Thanks!
/500
Recent Tips
·
Explore More
Continue From Casper, WY
More trips to Casper, WY
Explore more options from Riverton, WY or browse trips ending in Casper, WY.
Looking for more statewide routes? Browse WY road trips.
Explore maps for Riverton, WY or Casper, WY on MapSof.net.