How far is San Diego, CA from Barstow, CA?
The driving distance from San Diego, CA to Barstow, CA is about 176.1 miles (283.4 km), with a travel time of about 03h 18m by car.
- The straight-line flight distance is about 151.1 miles (243.1 km).
- For a round trip, plan for roughly 06h 36m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM PDT.
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.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
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 18m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
The fifth most populous city in Riverside County, California.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Mostly Clear
Driving Route Map
The map below follows the saved road route between San Diego and Barstow.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Diego and Barstow.
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1
Start on Front Street
8 m · 6 sec · Front Street
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2
Turn left onto West Broadway
3088 ft · 1 min · West Broadway
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3
Turn left onto 11th Avenue
1146 ft · 25 sec · 11th Avenue
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4
Continue on Cabrillo Parkway
2.4 mi · 3 min · Cabrillo Parkway
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5
Continue on Cabrillo Freeway
8.3 mi · 10 min · Cabrillo Freeway
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6
Keep slight left
2688 ft · 35 sec
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7
Continue on Semper Fi Highway
1.8 mi · 2 min · Semper Fi Highway
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8
Continue on Escondido Freeway
3.1 mi · 4 min · Escondido Freeway
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9
Continue on Tony Gwynn Memorial Freeway
4.6 mi · 5 min · Tony Gwynn Memorial Freeway
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10
Continue on Escondido Freeway
5.9 mi · 7 min · Escondido Freeway
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11
Keep slight left to continue on Escondido Freeway
6.9 mi · 8 min · Escondido Freeway
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12
Continue on Avocado Highway
21.9 mi · 23 min · Avocado Highway
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13
Continue on Escondido Freeway
6.3 mi · 7 min · Escondido Freeway
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14
Take the exit slight right toward I 215
1510 ft · 18 sec
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15
Continue on Escondido Freeway
34.5 mi · 40 min · Escondido Freeway
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16
Keep slight right to continue on I 215 North: San Bernardino, Barstow
2413 ft · 51 sec
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17
Merge slight left onto Riverside Freeway
5.4 mi · 6 min · Riverside Freeway
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18
Continue on San Bernardino Freeway
5.5 mi · 6 min · San Bernardino Freeway
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19
Continue on Barstow Freeway
8.9 mi · 10 min · Barstow Freeway
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20
Keep slight left
1141 ft · 14 sec
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21
Continue on Barstow and Mojave Freeway
6.8 mi · 7 min · Barstow and Mojave Freeway
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22
Continue on CHP Officer Larry L. Wetterling and San Bernardino County Sheriff's Lieutenant Alfred E. Stewart Memorial Highway
5.4 mi · 6 min · CHP Officer Larry L. Wetterling and San Bernardino County Sheriff's Lieutenant Alfred E. Stewart Memorial Highway
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23
Continue on Barstow and Mojave Freeway
44.8 mi · 48 min · Barstow and Mojave Freeway
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24
Take the exit slight right toward CA 247 South: Barstow Road
1813 ft · 52 sec
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25
Turn left onto Barstow Road
1.5 km · 2 min · Barstow Road
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26
At the end of the road, turn right onto East Main Street
16 m · 1 sec · East Main Street
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27
Arrive at your destination
0 m · 1 sec · East Main Street
Car Route Details
A richer read on the saved driving route between San Diego and Barstow.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Barstow and Mojave Freeway
Continue on Barstow and Mojave Freeway
44.8 mi · 00h 48m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
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.
Rain Showers Likely leaving San Diego and Mostly Clear near Barstow.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Diego to Barstow?
The road trip is about 176.1 miles (283.4 km) and usually takes 03h 18m 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?
Moreno Valley is a useful midpoint, sitting about 88.2 miles from San Diego and 87.9 miles from Barstow.
How much longer is the road route than the straight-line distance?
The direct path is about 151.1 miles (243.1 km), while the road route adds roughly 25 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 PDT. If you want a more comfortable same-day return, try to leave by 10:24 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $35.83 one way or $71.65 round trip. Estimated CO2 is about 55.2 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around San Diego and Mostly Clear near Barstow.
Stop Ideas Near Moreno Valley
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Brandon's Diner Jr. Of City Hall
Best Western Plus Arrowhead Hotel
Loma Linda City Hall
Perris City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Moreno Valley.
Moreno Valley, California
Riverside–Downtown
Perris, California
San Bernardino Santa Fe Depot
Flight Path Map
This map shows the direct air route between San Diego and Barstow. Straight-line distance: 151.04 mi (243.08 km).
#1 San Diego
The eighth most populous city in the United States and the center of the San Diego metropolitan area.
| Population | 1,422,420 |
| Coordinates | 32.7157100, -117.1647200 |
| Altitude | 20 |
| Country | United States |
#2 Barstow
City in San Bernardino County, California, United States
| Population | 23,692 |
| Coordinates | 34.8985900, -117.0228200 |
| Altitude | 663 |
| Country | United States |
End: Barstow (-117.02282, 34.89859)
Estimated Travel Time
Distance: 283 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 52m |
| 40 mph (64.37 km/h) | 04h 24m |
| 50 mph (80.47 km/h) | 03h 31m |
| 60 mph (96.56 km/h) | 02h 56m |
| 70 mph (112.65 km/h) | 02h 30m |
| 80 mph (129 km/h) | 02h 11m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $35.83 | $71.65 |
| Mid-grade | $6.07 | $37.67 | $75.34 |
| Premium | $6.24 | $38.77 | $77.54 |
| Diesel | $7.57 | $46.99 | $93.98 |
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 12, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.