How far is Stockton, CA from Diamond Bar, CA?
The driving distance from Stockton, CA to Diamond Bar, CA is about 363.9 miles (585.6 km), with a travel time of about 06h 42m by car.
- The straight-line flight distance is about 333.9 miles (537.4 km).
- For a round trip, plan for roughly 13h 25m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 06h 42m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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.
Census-designated place in Kern County, California
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Light Rain
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Stockton and Diamond Bar.
Turn-by-Turn Driving Directions
Step-by-step road directions between Stockton and Diamond Bar.
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1
Start on East Fremont Street
153 m · 31 sec · East Fremont Street
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2
Turn left onto North Center Street
2615 ft · 1 min · North Center Street
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3
Take the ramp slight right
1823 ft · 44 sec
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4
Keep slight left to continue on I 5 South
1 km · 1 min
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5
Merge slight left onto Westside Freeway
12.9 mi · 14 min · Westside Freeway
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6
Keep slight left to continue on Westside Freeway
1.2 km · 49 sec · Westside Freeway
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7
Keep slight left to continue on Westside Freeway
236.6 mi · 4 hr 14 min · Westside Freeway
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8
Keep slight right
58.4 mi · 1 hr 7 min
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9
Keep slight left to continue on Golden State Freeway
2 mi · 2 min · Golden State Freeway
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10
Take the exit slight right toward I 210 East: Pasadena
1347 ft · 18 sec
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11
Continue on Foothill Freeway
24.4 mi · 28 min · Foothill Freeway
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12
Keep slight right to continue on Foothill Freeway
19.1 mi · 22 min · Foothill Freeway
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13
Keep slight right to continue on Foothill Freeway
2476 ft · 33 sec · Foothill Freeway
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14
Take the exit slight right toward CA 57 South: Santa Ana
1.4 km · 2 min
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15
Continue on Orange Freeway
6.3 mi · 7 min · Orange Freeway
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16
Take the exit slight right toward Sunset Crossing Road
1334 ft · 40 sec
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17
Turn left onto Sunset Crossing Road
725 ft · 25 sec · Sunset Crossing Road
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18
Turn left
12 m · 3 sec
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19
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Stockton and Diamond Bar.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Westside Freeway
Keep slight left to continue on Westside Freeway
237 mi · 04h 14m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
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.
Chance Light Rain leaving Stockton and Mostly Sunny near Diamond Bar.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Stockton to Diamond Bar?
The road trip is about 363.9 miles (585.6 km) and usually takes 06h 42m 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?
Lost Hills is a useful midpoint, sitting about 182 miles from Stockton and 181.9 miles from Diamond Bar.
How much longer is the road route than the straight-line distance?
The direct path is about 333.9 miles (537.4 km), while the road route adds roughly 30 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 $74.07 one way or $148.15 round trip. Estimated CO2 is about 114.1 kg one way.
What should you check before leaving?
Before you leave, expect Chance Light Rain around Stockton and Mostly Sunny near Diamond Bar.
Stop Ideas Near Lost Hills
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Lost Hills.
Wasco station
Kettleman City, California
Corcoran station
Bakersfield
Flight Path Map
This map shows the direct air route between Stockton and Diamond Bar. Straight-line distance: 333.93 mi (537.41 km).
#1 Stockton
The fifth most populous city in California and the center of the Stockton metropolitan area.
| Population | 312,716 |
| Coordinates | 37.9577000, -121.2907800 |
| Altitude | 4 |
| Country | United States |
#2 Diamond Bar
A city in Los Angeles County, California.
| Population | 54,880 |
| Coordinates | 34.0286200, -117.8103400 |
| Altitude | 212 |
| Country | United States |
End: Diamond Bar (-117.81034, 34.02862)
Estimated Travel Time
Distance: 586 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 12h 07m |
| 40 mph (64.37 km/h) | 09h 05m |
| 50 mph (80.47 km/h) | 07h 16m |
| 60 mph (96.56 km/h) | 06h 03m |
| 70 mph (112.65 km/h) | 05h 11m |
| 80 mph (129 km/h) | 04h 32m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $74.07 | $148.15 |
| Mid-grade | $6.07 | $77.89 | $155.77 |
| Premium | $6.24 | $80.16 | $160.32 |
| Diesel | $7.57 | $97.16 | $194.32 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.