Origin
Riverside, CA
Evening in Riverside on Thursday
Local time
7:44 PM
PDT
Current temp
52°F
Unavailable
Live forecast
Trip from Riverside, CA to Los Osos, CA
Last recalculated Apr 17, 2026
Drive Time
5h 9m
Distance
249 mi
401 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$57
one way
EV Charging
Unknown
Best Time to Leave
4 AM
4h 56m
★
6 AM
5h 9m
8 AM
5h 36m
10 AM
5h 19m
12 PM
5h 16m
3 PM
5h 20m
5 PM
5h 35m
8 PM
5h 1m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Riverside, CA
Wikimedia Commons
Los Osos, CA
patrice schoefolt
Trip Overview
The drive from Riverside, CA to Los Osos, CA covers 249 miles and takes about 5h 9m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on US 101, Ventura Freeway, Chumash Highway for much of the mileage, and the overall profile is highway-focused drive. The longest uninterrupted segment is about 71.6 miles on US 101. At current regular gas prices, budget about $57.23 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
124.5 miles from Riverside, CA
A natural place for your longest stop of the day , about 2h 31m into the drive .
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 5h 9m. Total distance: 249 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 9m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (70%). Some complex stretches to watch for.
Drive Character
This is a 5h 9m highway drive covering 249 miles, with most of the trip on US 101 and Ventura Freeway. The longest continuous stretch is about 71.6 miles on US 101.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 42 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
US 101 is the longest continuous segment at about 71.6 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on US 101 and Ventura Freeway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 22.4 miles in.
Driving Effort
10/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 34 significant decision points across 249 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 22.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 22.6 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 58.7 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 34 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
8
22.4 mi into trip
|
~30m in
Take the exit toward CA 71 South, CA 71 North: Corona, Pomona
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 29B
Toward CA 71 South, CA 71 North: Corona, Pomona
7
22.6 mi into trip
|
~30m in
Keep slight right at fork toward CA 71 North: Pomona
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight right lane.
Toward CA 71 North: Pomona
9
58.7 mi into trip
|
~1h 15m in
Keep slight right at fork toward CA 134 West: Ventura Freeway, Ventura, Zoo Drive
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Toward CA 134 West: Ventura Freeway, Ventura, Z...
8
59 mi into trip
|
~1h 15m in
Keep slight left at fork toward CA 134: Ventura
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward CA 134: Ventura
8
152 mi into trip
|
~3h 3m in
Take the exit toward CA 154: State Street, Cachuma Lake
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 101B
Toward CA 154: State Street, Cachuma Lake
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Riverside, CA and Los Osos, CA, road signs point toward Pomona, Los Angeles, Sacramento, Ventura and Cachuma Lake.
Pomona
22.4 mi in
|
~30m
Los Angeles
58.3 mi in
|
~1h 14m
Sacramento
58.3 mi in
|
~1h 14m
Ventura
58.7 mi in
|
~1h 15m
Cachuma Lake
152 mi in
|
~3h 3m
Main Roads
| Road | Distance | Duration |
|---|---|---|
| US 101 | 71.6 mi | 1h 22m |
| Ventura Freeway | 66 mi | 1h 16m |
| Chumash Highway | 32.5 mi | 45m |
| Foothill Freeway | 18.3 mi | 21m |
| El Camino Real | 16.4 mi | 18m |
| Pomona Freeway | 12.1 mi | 13m |
| Los Osos Valley Road | 10.3 mi | 16m |
| Van Buren Boulevard | 6.1 mi | 8m |
Longest stretch:
US 101
— 71.6 mi, about 1h 22m
Turn-by-Turn Driving Directions
Step-by-step road directions between Riverside, CA and Los Osos, CA.
1
Start on this road
181 ft
·
13 sec
·
this road
2
Turn right
94 ft
·
7 sec
3
Turn right onto Magnolia Avenue
228 ft
·
14 sec
·
Magnolia Avenue
4
Turn left onto Central Avenue
3.5 mi
·
6 min
·
Central Avenue
Use the left lane.
5
Turn right onto Van Buren Boulevard
6.1 mi
·
8 min
·
Van Buren Boulevard
Use the right lane.
6
Continue on Mission Boulevard
0.3 mi
·
24 sec
·
Mission Boulevard
Use the straight lane.
7
Take the ramp
0.3 mi
·
41 sec
Toward CA 60 West
8
Merge onto CA 60
12 mi
·
13 min
·
Pomona Freeway
Use the straight / slight right lanes.
9
Take the exit
0.2 mi
·
29 sec
Exit 29B
Toward CA 71 South, CA 71 North: Corona, Pomona
Use the straight / slight right lanes.
10
Keep slight right at fork
0.5 mi
·
1 min
Toward CA 71 North: Pomona
Use the slight right lane.
11
Keep slight left at fork
0.2 mi
·
19 sec
Use the straight / slight right lanes.
12
Merge onto CA 71
3.5 mi
·
4 min
·
Chino Valley Freeway
Use the straight / slight right lanes.
13
Keep slight left at fork
0.7 mi
·
1 min
Toward CA 57 North
14
Continue on CA 57
3.4 mi
·
3 min
·
CA 57
Use the straight / slight right lanes.
15
Keep slight left at fork
1.1 mi
·
2 min
Exit 25C
Toward I 210 West: Pasadena
16
Merge onto I 210
18 mi
·
21 min
·
Foothill Freeway
Use the straight / slight right lanes.
17
Keep slight left at fork onto CA 134
6.4 mi
·
7 min
·
Ventura Freeway
Use the straight / slight right lanes.
18
Keep slight right at fork onto CA 134
1.1 mi
·
1 min
·
Ventura Freeway
Use the straight / slight right lanes.
19
Keep slight right at fork onto CA 134
0.5 mi
·
36 sec
·
Ventura Freeway
Use the straight / slight right lanes.
20
Take the exit
0.4 mi
·
24 sec
Toward I 5: Golden State Freeway, Los Angeles, Sacramento
Use the slight right lane.
21
Keep slight right at fork
323 ft
·
4 sec
Toward I 5 North, CA 134 West: Golden State Freeway, Sacramento, Ventura Freeway, Ventura, Zoo Drive
22
Keep slight right at fork
0.2 mi
·
17 sec
Toward CA 134 West: Ventura Freeway, Ventura, Zoo Drive
Use the slight right lane.
23
Keep slight left at fork
0.1 mi
·
9 sec
Toward CA 134: Ventura
Use the straight / slight right lanes.
24
Merge onto CA 134
0.6 mi
·
43 sec
·
Ventura Freeway
25
Keep slight right at fork onto CA 134
1.9 mi
·
2 min
·
Ventura Freeway
Use the straight / slight right lanes.
26
Keep slight right at fork onto CA 134
0.8 mi
·
52 sec
·
Ventura Freeway
Use the straight / slight right lanes.
27
Keep slight right at fork onto CA 134
55 mi
·
1 hr 3 min
·
Ventura Freeway
Use the straight / slight right lanes.
28
Keep slight left at fork onto US 101
18 mi
·
21 min
·
US 101
Use the straight / slight right lanes.
29
Continue on US 101
16 mi
·
18 min
·
El Camino Real
Use the straight / slight right lanes.
30
Take the exit
0.2 mi
·
29 sec
Exit 101B
Toward CA 154: State Street, Cachuma Lake
Use the slight right lane.
31
Continue on CA 154
0.3 mi
·
40 sec
·
Calle Real
Use the left / straight / right lanes.
32
Turn right onto CA 154
24 mi
·
33 min
·
Chumash Highway
Use the straight / right lanes.
33
Enter roundabout onto CA 154
116 ft
·
1 sec
·
Chumash Highway
Toward CA 154 West: Los Olivos, US 101 North
34
Continue on CA 154
2.2 mi
·
3 min
·
Chumash Highway
Toward CA 154 West: Los Olivos, US 101 North
35
Enter roundabout onto CA 154
140 ft
·
2 sec
·
Chumash Highway
36
Continue on CA 154
6.3 mi
·
9 min
·
Chumash Highway
37
Take the ramp
0.2 mi
·
31 sec
Toward US 101 North
38
Merge onto US 101
53 mi
·
1 hr 1 min
·
US 101
39
Take the exit
0.3 mi
·
38 sec
Toward Los Osos Valley Road
40
Turn left onto Los Osos Valley Road
10 mi
·
16 min
·
Los Osos Valley Road
Use the straight lane.
41
Continue on Los Osos Valley Road
273 ft
·
13 sec
·
Los Osos Valley Road
42
Arrive at destination
Los Osos Valley Road
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 124.5 miles from Riverside, CA, or about 2h 31m into the drive.
The longest continuous stretch on this route runs about 71.6 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 55 miles or 1h 11m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 124.5 miles or 2h 31m 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 12m
Traffic, exits, and arrival timing usually matter more near Los Osos, CA than in the middle of the route.
Before You Leave
+
Open the route before leaving Riverside, CA 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 Riverside, CA
This is one driving day of about 249 miles and 5h 9m.
Your first comfortable stop window is around 55 miles from Riverside, CA.
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 US 101 for about 71.6 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 124.5 mi from Riverside, CA · 2h 31m into the drive
Mid-route town
Meal stop
125 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
Pacing Suggestions
Fuel and coffee
A short stop after about 55 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 124.5 miles from Riverside, CA, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before US 101 if your tank is already low. That segment runs about 71.6 miles.
Arriving in Los Osos, CA
The final approach into Los Osos, CA usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Los Osos, CA.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$57.23 one way
$114.46 round trip
$5.84/gal
25.4 MPG avg
87 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $6.02 | $58.98 | $117.95 |
| premium | $6.18 | $60.55 | $121.11 |
| diesel | $5.61 | $54.98 | $109.95 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$57
Meals
$25–$50
Total
$82–$107
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 87.1 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $26 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 74.7 | 0 | $26.15 | $11.95 |
| Efficient EV | 62.3 | 0 | $21.79 | $9.96 |
| EV Truck/SUV | 99.6 | 1 | $34.86 | $15.94 |
Gas CO2
87 kg
EV CO2
29 kg (67% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
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
Los Osos, CA
Evening in Los Osos on Thursday
Local time
7:44 PM
PDT
Current temp
66°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
14 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
5h 9m 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.
Frequently Asked Questions
The drive from Riverside, CA to Los Osos, CA covers 249 miles and takes about 5h 9m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are US 101, Ventura Freeway, Chumash Highway. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 124.5 miles from Riverside, CA. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $57.23 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 demanding drive. With 34 significant decision points across 249 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
The main spots that need attention: at 22.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 22.6 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 58.7 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Between Riverside, CA and Los Osos, CA, road signs point toward Pomona, Los Angeles, Sacramento, Ventura and Cachuma Lake.
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