How far is Riverside, CA from Sebastopol, CA?

The driving distance from Riverside, CA to Sebastopol, CA is about 509 miles (819.2 km), with a travel time of about 09h 45m by car.

  • The straight-line flight distance is about 426.9 miles (687 km).
  • For a round trip, plan for roughly 19h 30m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 7:30 AM PDT.
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
509 mi
09h 45m
Flight
426.88 mi
686.99 km direct

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

Learn Distance

Choose another destination from Riverside.

Flight Distance

Direct air line
426.88 mi
Kilometers
686.99 km
Flight Time
00h 51m

Driving Distance

Road route
509 mi
Kilometers
819.16 km
Drive Time
09h 45m

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 09h 45m.

Arrival Snapshot
Arrive in Sebastopol
Sat, Apr 18, 7:10 PM PDT
Return by in Riverside
Sun, Apr 19, 4:55 AM PDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Riverside
2026-04-18T09:24
Arrive Sebastopol
Sat, Apr 18, 7:10 PM PDT
Route Timing
09h 45m
One way by road
Best Departure Window
6:00 AM to 7:30 AM PDT
Treat this as a longer travel day
Arrive between
3:45 PM to 5:15 PM PDT

Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.

Leave by
4:30 PM PDT
Keeps a same-day return open with about 08h 00m at the destination.
Back in Riverside
8:00 PM PDT
Overnight-style route

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
Coalinga
CA

City in Fresno County, California, United States

From Riverside
254.6 mi
04h 52m
To Sebastopol
254.4 mi
04h 52m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
84°F
Saturday

Sunny

Starts
Sat, Apr 18 6:00 AM PDT
Wind
5 to 10 mph W
Destination
69°F
Saturday

Sunny

Starts
Sat, Apr 18 6:00 AM PDT
Wind
5 mph S

Driving Route Map

The map below follows the saved road route between Riverside and Sebastopol.

Turn-by-Turn Driving Directions

Step-by-step road directions between Riverside and Sebastopol.

  1. 1

    Start on the route

    55 m · 14 sec

  2. 2

    Turn right

    29 m · 7 sec

  3. 3

    Turn right onto Magnolia Avenue

    70 m · 15 sec · Magnolia Avenue

  4. 4

    Turn left onto Central Avenue

    3.5 mi · 6 min · Central Avenue

  5. 5

    Turn right onto Van Buren Boulevard

    6.1 mi · 8 min · Van Buren Boulevard

  6. 6

    Continue on Mission Boulevard

    1434 ft · 24 sec · Mission Boulevard

  7. 7

    Take the ramp slight left toward CA 60 West

    1617 ft · 41 sec

  8. 8

    Merge slight left onto Pomona Freeway

    12.1 mi · 14 min · Pomona Freeway

  9. 9

    Take the exit slight right toward CA 71 South, CA 71 North: Corona, Pomona

    1213 ft · 30 sec

  10. 10

    Keep slight right to continue on CA 71 North: Pomona

    2510 ft · 1 min

  11. 11

    Keep slight left

    811 ft · 20 sec

  12. 12

    Merge slight left onto Chino Valley Freeway

    3.5 mi · 4 min · Chino Valley Freeway

  13. 13

    Keep slight left to continue on CA 57 North

    1.2 km · 2 min

  14. 14

    Continue straight

    3.4 mi · 4 min

  15. 15

    Keep slight left to continue on I 210 West: Pasadena

    1.1 mi · 2 min

  16. 16

    Merge slight left onto Foothill Freeway

    18.3 mi · 21 min · Foothill Freeway

  17. 17

    Keep slight right to continue on Foothill Freeway

    25.6 mi · 30 min · Foothill Freeway

  18. 18

    Keep slight right

    686 ft · 9 sec

  19. 19

    Merge slight right

    1.6 km · 1 min

  20. 20

    Keep slight left

    36.1 mi · 42 min

  21. 21

    Keep slight left to continue on Golden State Freeway

    22.3 mi · 25 min · Golden State Freeway

  22. 22

    Keep slight right to continue on Westside Freeway

    225.6 mi · 4 hr 2 min · Westside Freeway

  23. 23

    Keep slight right to continue on Westside Freeway

    25.5 mi · 28 min · Westside Freeway

  24. 24

    Keep left to continue on Westside Freeway

    46 mi · 51 min · Westside Freeway

  25. 25

    Take the exit slight right toward US 50, I 80 East: San Francisco, South Lake Tahoe

    975 ft · 13 sec

  26. 26

    Keep slight right to continue on US 50 East, I 80 Business East: South Lake Tahoe, Broadway

    809 ft · 13 sec

  27. 27

    Keep slight left to continue on US 50 East, I 80 East: South Lake Tahoe

    1.1 km · 1 min

  28. 28

    Merge slight left onto Capital City Freeway

    1.2 mi · 1 min · Capital City Freeway

  29. 29

    Keep slight right to continue on Capital City Freeway

    9.4 mi · 10 min · Capital City Freeway

  30. 30

    Continue on Dwight D. Eisenhower Highway

    7 mi · 8 min · Dwight D. Eisenhower Highway

  31. 31

    Continue on Alan S. Hart Freeway

    16.9 mi · 19 min · Alan S. Hart Freeway

  32. 32

    Take the exit slight right toward CA 49 North: Grass Valley, Placerville

    943 ft · 31 sec

  33. 33

    Turn left onto Grass Valley Highway

    5.8 mi · 9 min · Grass Valley Highway

  34. 34

    Enter the roundabout and take exit 2 toward Grass Valley Highway

    36 m · 3 sec · Grass Valley Highway

  35. 35

    Exit the roundabout onto Grass Valley Highway

    1.3 mi · 2 min · Grass Valley Highway

  36. 36

    Enter the roundabout and take exit 2 toward Grass Valley Highway

    36 m · 3 sec · Grass Valley Highway

  37. 37

    Exit the roundabout onto Grass Valley Highway

    1.1 mi · 1 min · Grass Valley Highway

  38. 38

    Continue on State Highway 49

    18.9 mi · 25 min · State Highway 49

  39. 39

    Take the exit slight right toward Broad Street

    1025 ft · 26 sec

  40. 40

    Turn left onto Broad Street

    1652 ft · 39 sec · Broad Street

  41. 41

    Continue on West Broad Street

    2260 ft · 54 sec · West Broad Street

  42. 42

    Turn left

    10.9 mi · 15 min

  43. 43

    Turn left onto Pleasant Valley Road

    1077 ft · 32 sec · Pleasant Valley Road

  44. 44

    Turn right onto Sweetland Road

    1.1 mi · 4 min · Sweetland Road

  45. 45

    Keep slight right to continue on Sweetland Road

    1865 ft · 1 min · Sweetland Road

  46. 46

    Arrive at your destination

    0 m · 1 sec · Sweetland Road

Car Route Details

A richer read on the saved driving route between Riverside and Sebastopol.

OSRM road route
Drive Character

Long-distance drive

This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.

Directions
46 steps
13 turns on the saved route
Ramps & Exits
14
5 merges, 9 ramps or exits
Navigation Density
9 / 100 mi
Decision points by distance
Main Roads
Westside Freeway
297 mi · 58%
Foothill Freeway
81.2 mi · 16%
Golden State Freeway
22.3 mi · 4%
State Highway 49
18.9 mi · 4%
Alan S. Hart Freeway
16.9 mi · 3%
Pomona Freeway
12.1 mi · 2%
Longest Stretch

Westside Freeway

Keep slight right to continue on Westside Freeway

226 mi · 04h 02m

Route Summary

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

Trip Read

Better with a longer stop

This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.

Drive Time
09h 45m
Overnight route
Same-Day Return
19h 30m
Round-trip wheel time
Road vs Air
+82.1 mi
426.9 mi direct line
Halfway Stop
Coalinga
04h 52m from Riverside
Leave By
4:30 PM PDT
Overnight-style route
Weather Watch

Sunny leaving Riverside and Sunny near Sebastopol.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Riverside to Sebastopol?

The road trip is about 509 miles (819.2 km) and usually takes 09h 45m in normal driving conditions.

Is this a same-day trip or an overnight route?

This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.

What is the halfway point on this route?

Coalinga is a useful midpoint, sitting about 254.6 miles from Riverside and 254.4 miles from Sebastopol.

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

The direct path is about 426.9 miles (687 km), while the road route adds roughly 82.1 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 7:30 AM PDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $103.61 one way or $207.22 round trip. Estimated CO2 is about 159.6 kg one way.

What should you check before leaving?

Before you leave, expect Sunny around Riverside and Sunny near Sebastopol.

Stop Ideas Near Coalinga

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
Local place coverage is thin around Coalinga, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Coalinga.

BUS

Kettleman City, California

40 mi away
3300 Hubert Way
BUS

Lemoore (Naval Air Station), California

49 mi away
25th Ave and Highway 198
BUS

Lemoore, California

53 mi away
300 E Street
RAIL

Paso Robles station

65 mi away
800 Pine Street

Flight Path Map

This map shows the direct air route between Riverside and Sebastopol. Straight-line distance: 426.88 mi (686.99 km).

Riverside

#1 Riverside

The most populous city in Riverside County, California and the center of the Riverside metropolitan area.

Population330,786
Coordinates33.9533500, -117.3961600
Altitude252
CountryUnited States
Sebastopol

#2 Sebastopol

City in Sonoma County, California, United States of America

Population7,593
Coordinates39.3626700, -121.1210700
Altitude583
CountryUnited States
Start: Riverside (-117.39616, 33.95335)
End: Sebastopol (-121.12107, 39.36267)

Estimated Travel Time

Distance: 819 km by road

SpeedTime
30 mph (48.3 km/h)16h 57m
40 mph (64.37 km/h)12h 43m
50 mph (80.47 km/h)10h 10m
60 mph (96.56 km/h)08h 29m
70 mph (112.65 km/h)07h 16m
80 mph (129 km/h)06h 21m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
17.96 gal
67.99 L · about $103.61
Round trip
$207.22
35.92 gal · 135.98 L
Estimated CO2
159.6 kg one way
Round trip: 319.2 kg / 704 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $5.77 $103.61 $207.22
Mid-grade $6.07 $108.95 $217.89
Premium $6.24 $112.12 $224.25
Diesel $7.57 $135.90 $271.81

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 California · Apr 18, 2026

There is no time difference between Riverside and Sebastopol. The current time is 09:24:53.

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.