How far is Rancho Cucamonga, CA from Placentia, CA?

The driving distance from Rancho Cucamonga, CA to Placentia, CA is about 29.5 miles (47.4 km), with a travel time of about 00h 40m by car.

  • The straight-line flight distance is about 22.7 miles (36.5 km).
  • For a round trip, plan for roughly 01h 20m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 7:00 AM to 7:00 PM PDT.
Trip Tools

Reverse, save, or send this route

This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.

Reverse Route
Quick Snapshot
Road
29.45 mi
00h 40m
Flight
22.67 mi
36.49 km direct

This is an easy same-day return drive.

Learn Distance

Choose another destination from Rancho Cucamonga.

Flight Distance

Direct air line
22.67 mi
Kilometers
36.49 km
Flight Time
00h 02m

Driving Distance

Road route
29.45 mi
Kilometers
47.4 km
Drive Time
00h 40m

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 40m.

Arrival Snapshot
Arrive in Placentia
Thu, Oct 15, 12:06 PM PDT
Return by in Rancho Cucamonga
Thu, Oct 15, 12:46 PM PDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Rancho Cucamonga
2026-10-15T11:26
Arrive Placentia
Thu, Oct 15, 12:06 PM PDT
Route Timing
00h 40m
One way by road
Best Departure Window
7:00 AM to 7:00 PM PDT
Leave when it suits your day
Arrive between
7:40 AM to 7:40 PM PDT

This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.

Leave by
7:10 PM PDT
Keeps a same-day return open with about 01h 30m at the destination.
Back in Rancho Cucamonga
10:00 PM PDT
Flexible departure

This departure sits inside the recommended comfort window for the route.

Halfway Point

A useful midpoint for breaks, coffee, or meeting in the middle.

Mid-route stop
Diamond Bar
CA

A city in Los Angeles County, California.

From Rancho Cucamonga
14.7 mi
00h 20m
To Placentia
14.7 mi
00h 20m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
85°F
Thursday

Sunny

Starts
Thu, Oct 15 6:00 AM PDT
Wind
5 to 20 mph N
Destination
90°F
Thursday

Sunny

Starts
Thu, Oct 15 6:00 AM PDT
Wind
0 to 5 mph N

Driving Route Map

The map below follows the saved road route between Rancho Cucamonga and Placentia.

Turn-by-Turn Driving Directions

Step-by-step road directions between Rancho Cucamonga and Placentia.

  1. 1

    Start on the route

    56 m · 16 sec

  2. 2

    At the end of the road, turn right

    27 m · 12 sec

  3. 3

    Turn left onto Archibald Avenue

    1.6 km · 2 min · Archibald Avenue

  4. 4

    Turn right onto 8th Street

    3.3 mi · 6 min · 8th Street

  5. 5

    Turn left onto South Euclid Avenue

    1527 ft · 28 sec · South Euclid Avenue

  6. 6

    Take the ramp slight right toward I 10 West: Los Angeles

    1400 ft · 36 sec

  7. 7

    Merge slight left onto San Bernardino Freeway

    1.6 km · 1 min · San Bernardino Freeway

  8. 8

    Take the exit slight left

    86 m · 7 sec

  9. 9

    Merge slight left onto I-10 Metro ExpressLanes

    1.4 mi · 2 min · I-10 Metro ExpressLanes

  10. 10

    Merge slight right onto San Bernardino Freeway

    1.2 mi · 1 min · San Bernardino Freeway

  11. 11

    Keep slight right to continue on San Bernardino Freeway

    1.4 km · 1 min · San Bernardino Freeway

  12. 12

    Keep slight right to continue on San Bernardino Freeway

    1.3 mi · 2 min · San Bernardino Freeway

  13. 13

    Keep slight right to continue on San Bernardino Freeway

    1.9 mi · 2 min · San Bernardino Freeway

  14. 14

    Keep slight right to continue on San Bernardino Freeway

    1.3 km · 55 sec · San Bernardino Freeway

  15. 15

    Take the exit slight right toward CA 57: Santa Ana

    1086 ft · 27 sec

  16. 16

    Keep slight left to continue on CA 57 South: Santa Ana

    1.5 km · 2 min

  17. 17

    Merge slight left onto Orange Freeway

    2.9 mi · 3 min · Orange Freeway

  18. 18

    Merge slight left onto Pomona Freeway

    1.3 mi · 1 min · Pomona Freeway

  19. 19

    Keep slight right to continue on Orange Freeway

    123 m · 5 sec · Orange Freeway

  20. 20

    Keep slight left to continue on Orange Freeway

    1.3 km · 57 sec · Orange Freeway

  21. 21

    Keep slight right to continue on Orange Freeway

    1.5 mi · 2 min · Orange Freeway

  22. 22

    Keep slight right to continue on Orange Freeway

    7.2 mi · 8 min · Orange Freeway

  23. 23

    Take the exit slight right toward Fullerton, Nutwood Avenue, Chapman Avenue

    1336 ft · 35 sec

  24. 24

    Continue on CA 57 South: Santa Ana, Chapman Avenue

    76 m · 6 sec

  25. 25

    Keep slight right

    1155 ft · 30 sec

  26. 26

    Turn left onto East Chapman Avenue

    1 km · 2 min · East Chapman Avenue

  27. 27

    Turn left onto North Bradford Avenue

    13 m · 1 sec · North Bradford Avenue

  28. 28

    Arrive at your destination

    0 m · 1 sec · North Bradford Avenue

Car Route Details

A richer read on the saved driving route between Rancho Cucamonga and Placentia.

OSRM road route
Drive Character

Turn-heavy local drive

The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.

Directions
28 steps
6 turns on the saved route
Ramps & Exits
9
5 merges, 4 ramps or exits
Navigation Density
94.9 / 100 mi
Decision points by distance
Main Roads
Orange Freeway
12.5 mi · 43%
San Bernardino Freeway
7.05 mi · 24%
8th Street
3.32 mi · 11%
I-10 Metro ExpressLanes
1.4 mi · 5%
Pomona Freeway
1.26 mi · 4%
CA 57 South
1.2 mi · 4%
Longest Stretch

Orange Freeway

Keep slight right to continue on Orange Freeway

7.23 mi · 00h 08m

Route Summary

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

Trip Read

A short regional drive

This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.

Drive Time
00h 40m
Quick drive
Same-Day Return
01h 20m
Round-trip wheel time
Road vs Air
+6.8 mi
22.7 mi direct line
Halfway Stop
Diamond Bar
00h 20m from Rancho Cucamonga
Leave By
7:10 PM PDT
Flexible departure
Weather Watch

Sunny leaving Rancho Cucamonga and Sunny near Placentia.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Rancho Cucamonga to Placentia?

The road trip is about 29.5 miles (47.4 km) and usually takes 00h 40m in normal driving conditions.

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

This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.

What is the halfway point on this route?

Diamond Bar is a useful midpoint, sitting about 14.7 miles from Rancho Cucamonga and 14.7 miles from Placentia.

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

The direct path is about 22.7 miles (36.5 km), while the road route adds roughly 6.8 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 7:00 AM to 7:00 PM PDT. If you want a more comfortable same-day return, try to leave by 7:10 PM PDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $6.51 one way or $13.02 round trip. Estimated CO2 is about 9.2 kg one way.

What should you check before leaving?

Before you leave, expect Sunny around Rancho Cucamonga and Sunny near Placentia.

Stop Ideas Near Diamond Bar

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

Mid-route Guidance
These suggestions come from reviewed places and nearby services around Diamond Bar and the surrounding midpoint area.
Stop photo coming soon
Coffee break 4.1 mi away

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Rating 5.0/5 2 reviews Bed & breakfast
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Stay option 10.6 mi away

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Scenic stop 13.9 mi away

City of South El Monte City Hall

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Rating 5.0/5 1 reviews Park,City or town hall
Chino City Hall
Meeting point 7.1 mi away

Chino City Hall

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Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Diamond Bar.

RAIL

Pomona station

6 mi away
100 West Commercial Street
BUS

Claremont, California

11 mi away
200 West First St.
RAIL

Ontario

15 mi away
228 South Plum Street
RAIL

Fullerton Transportation Center

21 mi away
120 East Santa Fe Avenue

Flight Path Map

This map shows the direct air route between Rancho Cucamonga and Placentia. Straight-line distance: 22.67 mi (36.49 km).

Rancho Cucamonga

#1 Rancho Cucamonga

The sixth most populous city in San Bernardino County, California.

Population178,849
Coordinates34.1064000, -117.5931100
Altitude368
CountryUnited States
Placentia

#2 Placentia

A city in Orange County, California.

Population51,519
Coordinates33.8722400, -117.8703400
Altitude83
CountryUnited States
Start: Rancho Cucamonga (-117.59311, 34.1064)
End: Placentia (-117.87034, 33.87224)

Estimated Travel Time

Distance: 47 km by road

SpeedTime
30 mph (48.3 km/h)00h 58m
40 mph (64.37 km/h)00h 44m
50 mph (80.47 km/h)00h 35m
60 mph (96.56 km/h)00h 29m
70 mph (112.65 km/h)00h 25m
80 mph (129 km/h)00h 22m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
1.04 gal
3.93 L · about $6.51
Round trip
$13.02
2.08 gal · 7.86 L
Estimated CO2
9.2 kg one way
Round trip: 18.5 kg / 41 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $6.26 $6.51 $13.02
Mid-grade $6.50 $6.76 $13.52
Premium $6.69 $6.96 $13.91
Diesel $8.41 $8.75 $17.50

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 · Oct 15, 2026

There is no time difference between Rancho Cucamonga and Placentia. The current time is 11:26:21.

Distance to Other Cities

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.