How far is Riverton, WY from Lyman, WY?

The driving distance from Riverton, WY to Lyman, WY is about 204.7 miles (329.5 km), with a travel time of about 03h 46m by car.

  • The straight-line flight distance is about 152.8 miles (245.9 km).
  • For a round trip, plan for roughly 07h 33m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
204.71 mi
03h 46m
Flight
152.8 mi
245.9 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from Riverton.

Flight Distance

Direct air line
152.8 mi
Kilometers
245.9 km
Flight Time
00h 18m

Driving Distance

Road route
204.71 mi
Kilometers
329.45 km
Drive Time
03h 46m

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 03h 46m.

Arrival Snapshot
Arrive in Lyman
Thu, Apr 23, 5:04 AM MDT
Return by in Riverton
Thu, Apr 23, 8:51 AM MDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Riverton
2026-04-23T01:17
Arrive Lyman
Thu, Apr 23, 5:04 AM MDT
Route Timing
03h 46m
One way by road
Best Departure Window
6:00 AM to 8:00 AM MDT
Leave early for more breathing room
Arrive between
9:47 AM to 11:47 AM MDT

An early departure helps you fit a real stop into the day without turning the return into a late-night drive.

Leave by
9:26 AM MDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Riverton
9:00 PM MDT
Early departure recommended

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.

Mid-route stop
North Rock Springs
WY

Census-designated place in Sweetwater County, Wyoming

From Riverton
102.3 mi
01h 53m
To Lyman
102.5 mi
01h 53m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
55°F
Thursday

Chance Rain Showers

Starts
Thu, Apr 23 6:00 AM MDT
Wind
16 to 22 mph NNW
Destination
49°F
Thursday

Chance Snow Showers

Starts
Thu, Apr 23 6:00 AM MDT
Wind
17 to 24 mph W

Driving Route Map

The map below follows the saved road route between Riverton and Lyman.

Turn-by-Turn Driving Directions

Step-by-step road directions between Riverton and Lyman.

  1. 1

    Start on North Federal Boulevard

    15 mi · 17 min · North Federal Boulevard

  2. 2

    Continue on South Main Street

    9.8 mi · 12 min · South Main Street

  3. 3

    Turn left onto East Main Street

    8.4 mi · 10 min · East Main Street

  4. 4

    Continue on Highway 28

    66.5 mi · 1 hr 16 min · Highway 28

  5. 5

    Turn left onto Farson Mercantile

    38.1 mi · 43 min · Farson Mercantile

  6. 6

    Continue on Elk Street

    1.4 km · 2 min · Elk Street

  7. 7

    Take the exit left

    1736 ft · 42 sec

  8. 8

    Merge slight left onto Dwight D. Eisenhower Highway

    62.4 mi · 1 hr 1 min · Dwight D. Eisenhower Highway

  9. 9

    Take the exit slight right toward WY 413: Lyman

    1964 ft · 53 sec

  10. 10

    Turn left

    2.8 mi · 5 min

  11. 11

    At the end of the road, turn right onto North Main Street

    1354 ft · 29 sec · North Main Street

  12. 12

    Turn left onto East Owen Street

    3 m · 1 sec · East Owen Street

  13. 13

    Arrive at your destination

    0 m · 1 sec · East Owen Street

Car Route Details

A richer read on the saved driving route between Riverton and Lyman.

OSRM road route
Drive Character

Highway-focused drive

Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.

Directions
13 steps
5 turns on the saved route
Ramps & Exits
3
1 merges, 2 ramps or exits
Navigation Density
6.4 / 100 mi
Decision points by distance
Main Roads
Highway 28
66.5 mi · 32%
Dwight D. Eisenhower Highway
62.4 mi · 30%
Farson Mercantile
38.1 mi · 19%
North Federal Boulevard
15 mi · 7%
South Main Street
9.76 mi · 5%
East Main Street
8.41 mi · 4%
Longest Stretch

Highway 28

Continue on Highway 28

66.5 mi · 01h 16m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

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.

Drive Time
03h 46m
Long day trip
Same-Day Return
07h 34m
Round-trip wheel time
Road vs Air
+51.9 mi
152.8 mi direct line
Halfway Stop
North Rock Springs
01h 53m from Riverton
Leave By
9:26 AM MDT
Early departure recommended
Weather Watch

Chance Rain Showers leaving Riverton and Chance Snow Showers near Lyman.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Riverton to Lyman?

The road trip is about 204.7 miles (329.5 km) and usually takes 03h 46m 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?

North Rock Springs is a useful midpoint, sitting about 102.3 miles from Riverton and 102.5 miles from Lyman.

How much longer is the road route than the straight-line distance?

The direct path is about 152.8 miles (245.9 km), while the road route adds roughly 51.9 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 9:26 AM MDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $28.11 one way or $56.21 round trip. Estimated CO2 is about 64.2 kg one way.

What should you check before leaving?

Before you leave, expect Chance Rain Showers around Riverton and Chance Snow Showers near Lyman.

Flight Path Map

This map shows the direct air route between Riverton and Lyman. Straight-line distance: 152.8 mi (245.9 km).

Riverton

#1 Riverton

City in Freemont County, Wyoming

Population10,819
Coordinates43.0249600, -108.3801000
Altitude1509
CountryUnited States
Lyman

#2 Lyman

Town in Uinta County, Wyoming

Population2,083
Coordinates41.3274500, -110.2929300
Altitude2044
CountryUnited States
Start: Riverton (-108.3801, 43.02496)
End: Lyman (-110.29293, 41.32745)

Estimated Travel Time

Distance: 329 km by road

SpeedTime
30 mph (48.3 km/h)06h 49m
40 mph (64.37 km/h)05h 07m
50 mph (80.47 km/h)04h 05m
60 mph (96.56 km/h)03h 24m
70 mph (112.65 km/h)02h 55m
80 mph (129 km/h)02h 33m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
7.22 gal
27.34 L · about $28.11
Round trip
$56.21
14.44 gal · 54.68 L
Estimated CO2
64.2 kg one way
Round trip: 128.3 kg / 283 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.89 $28.11 $56.21
Mid-grade $4.23 $30.55 $61.10
Premium $4.55 $32.84 $65.69
Diesel $5.41 $39.07 $78.15

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

There is no time difference between Riverton and Lyman. The current time is 01:17:56.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.