How far is Long Beach, CA from Diamond Bar, CA?
The driving distance from Long Beach, CA to Diamond Bar, CA is about 39.3 miles (63.3 km), with a travel time of about 00h 51m by car.
- The straight-line flight distance is about 28.3 miles (45.5 km).
- For a round trip, plan for roughly 01h 43m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM PDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 00h 51m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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 most populous city in Los Angeles County, California.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Long Beach and Diamond Bar.
Turn-by-Turn Driving Directions
Step-by-step road directions between Long Beach and Diamond Bar.
-
1
Start on East Ocean Boulevard
1.2 km · 2 min · East Ocean Boulevard
-
2
Turn right onto North Golden Avenue
126 m · 7 sec · North Golden Avenue
-
3
Keep slight left to continue on I 710 North
761 ft · 19 sec
-
4
Merge slight left onto Shoreline Drive
2800 ft · 48 sec · Shoreline Drive
-
5
Keep slight left to continue on I 710 North
1984 ft · 32 sec
-
6
Merge slight right onto Seaside Freeway
2683 ft · 42 sec · Seaside Freeway
-
7
Continue on Long Beach Freeway
8.1 mi · 11 min · Long Beach Freeway
-
8
Take the exit slight right toward I 105 West, I 105 East: El Segundo, Norwalk
1944 ft · 48 sec
-
9
Keep slight right to continue on I 105 East: Norwalk
1102 ft · 27 sec
-
10
Keep slight left to continue on I 105 East
1991 ft · 51 sec
-
11
Merge slight left onto Century Freeway
3.5 mi · 4 min · Century Freeway
-
12
Keep slight left to continue on I 605 North
1.1 km · 1 min
-
13
Keep slight left to continue on I 605 North
1555 ft · 40 sec
-
14
Merge slight left onto San Gabriel River Freeway
8.8 mi · 10 min · San Gabriel River Freeway
-
15
Take the exit slight right toward CA 60 West, CA 60 East: Los Angeles, Pomona
1062 ft · 23 sec
-
16
Keep slight right to continue on CA 60 East: Pomona Freeway, Pomona
1662 ft · 36 sec
-
17
Merge slight left onto Pomona Freeway
62 m · 3 sec · Pomona Freeway
-
18
Keep slight right to continue on Pomona Freeway
1.3 km · 55 sec · Pomona Freeway
-
19
Keep slight right to continue on Pomona Freeway
1.8 mi · 2 min · Pomona Freeway
-
20
Keep slight right to continue on Pomona Freeway
2.4 mi · 3 min · Pomona Freeway
-
21
Keep slight right to continue on Pomona Freeway
2.6 mi · 3 min · Pomona Freeway
-
22
Keep slight right to continue on Pomona Freeway
2 mi · 2 min · Pomona Freeway
-
23
Keep slight right to continue on Pomona Freeway
3.9 mi · 4 min · Pomona Freeway
-
24
Take the exit slight right toward Diamond Bar Boulevard
939 ft · 29 sec
-
25
Turn left onto North Diamond Bar Boulevard
2321 ft · 1 min · North Diamond Bar Boulevard
-
26
Turn right
26 m · 7 sec
-
27
Turn right
10 m · 2 sec
-
28
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Long Beach and Diamond Bar.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
San Gabriel River Freeway
Merge slight left onto San Gabriel River Freeway
8.85 mi · 00h 10m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Mostly Sunny leaving Long Beach 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 Long Beach to Diamond Bar?
The road trip is about 39.3 miles (63.3 km) and usually takes 00h 51m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Pico Rivera is a useful midpoint, sitting about 19.7 miles from Long Beach and 19.7 miles from Diamond Bar.
How much longer is the road route than the straight-line distance?
The direct path is about 28.3 miles (45.5 km), while the road route adds roughly 11 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 8:00 AM to 10:00 AM PDT. If you want a more comfortable same-day return, try to leave by 4:46 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $8.02 one way or $16.04 round trip. Estimated CO2 is about 12.4 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Long Beach and Mostly Sunny near Diamond Bar.
Stop Ideas Near Pico Rivera
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Bell Gardens Inn Los Angeles
City of South El Monte City Hall
City Of El Monte Public Works Department
Los ANgeles city Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Pico Rivera.
Los Angeles Union Station
Pasadena, California
Fullerton Transportation Center
Glendale Transportation Center
Flight Path Map
This map shows the direct air route between Long Beach and Diamond Bar. Straight-line distance: 28.27 mi (45.49 km).
#1 Long Beach
The second most populous city in California, Long Beach is a major center for business, manufacturing, and tourism.
| Population | 454,681 |
| Coordinates | 33.7669600, -118.1892300 |
| Altitude | 9 |
| 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: 63 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 18m |
| 40 mph (64.37 km/h) | 00h 59m |
| 50 mph (80.47 km/h) | 00h 47m |
| 60 mph (96.56 km/h) | 00h 39m |
| 70 mph (112.65 km/h) | 00h 33m |
| 80 mph (129 km/h) | 00h 29m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $8.02 | $16.04 |
| Mid-grade | $6.07 | $8.43 | $16.86 |
| Premium | $6.24 | $8.68 | $17.36 |
| Diesel | $7.57 | $10.52 | $21.04 |
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.