How far is Rossmoor, CA from San Diego, CA?
The driving distance from Rossmoor, CA to San Diego, CA is about 100.7 miles (162 km), with a travel time of about 01h 44m by car.
- The straight-line flight distance is about 91 miles (146.5 km).
- For a round trip, plan for roughly 03h 29m 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 01h 44m.
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 Orange 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 Rossmoor and San Diego.
Turn-by-Turn Driving Directions
Step-by-step road directions between Rossmoor and San Diego.
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1
Start on Kempton Drive
38 m · 8 sec · Kempton Drive
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2
Turn right onto Foster Road
94 m · 18 sec · Foster Road
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3
Turn left onto Mainway Drive
2547 ft · 2 min · Mainway Drive
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4
Turn right onto Montecito Road
1504 ft · 39 sec · Montecito Road
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5
Continue on Saint Cloud Drive
1200 ft · 33 sec · Saint Cloud Drive
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6
Turn right onto Seal Beach Boulevard
1.1 km · 1 min · Seal Beach Boulevard
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7
Take the ramp left toward CA 22 East, I 405 South: San Diego, Garden Grove
2087 ft · 53 sec
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8
Merge slight left onto San Diego Freeway
1.3 mi · 2 min · San Diego Freeway
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9
Keep slight left to continue on San Diego Freeway
893 ft · 12 sec · San Diego Freeway
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10
Keep slight left
10.3 mi · 12 min
-
11
Keep slight right to continue on Corona Del Mar Freeway
4 mi · 5 min · Corona Del Mar Freeway
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12
Continue on San Joaquin Hills Transportation Corridor
10.3 mi · 12 min · San Joaquin Hills Transportation Corridor
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13
Take the exit slight right toward La Paz Road, Moulton Parkway
133 m · 6 sec
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14
Keep slight left to continue on CA 73 South: Moulton Parkway
2519 ft · 33 sec
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15
Keep slight left to continue on CA 73 South
3218 ft · 42 sec
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16
Merge slight left onto San Joaquin Hills Transportation Corridor
2.5 mi · 3 min · San Joaquin Hills Transportation Corridor
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17
Merge slight left onto San Diego Freeway
67.8 mi · 1 hr 19 min · San Diego Freeway
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18
Take the exit slight right toward Front Street, Civic Center, 2nd Avenue
1164 ft · 28 sec
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19
Keep slight right to continue on Front Street, Civic Center
592 ft · 15 sec
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20
Continue on Front Street
2662 ft · 2 min · Front Street
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21
Arrive at your destination
0 m · 1 sec · Front Street
Car Route Details
A richer read on the saved driving route between Rossmoor and San Diego.
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 Diego Freeway
Merge slight left onto San Diego Freeway
67.8 mi · 01h 19m
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 Rossmoor and Mostly Sunny near San Diego.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Rossmoor to San Diego?
The road trip is about 100.7 miles (162 km) and usually takes 01h 44m 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?
San Clemente is a useful midpoint, sitting about 50.3 miles from Rossmoor and 50.4 miles from San Diego.
How much longer is the road route than the straight-line distance?
The direct path is about 91 miles (146.5 km), while the road route adds roughly 9.7 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 3:00 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $20.48 one way or $40.96 round trip. Estimated CO2 is about 31.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Rossmoor and Mostly Sunny near San Diego.
Stop Ideas Near San Clemente
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Blue Lantern Inn, A Four Sisters Inn
Laguna Cliffs Marriott Resort & Spa
CITY HALL, City of San Juan Capistrano
Doheny State Beach Campground
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to San Clemente.
San Clemente Pier station
San Juan Capistrano
Irvine Transportation Center
Oceanside Transit Center
Flight Path Map
This map shows the direct air route between Rossmoor and San Diego. Straight-line distance: 91.06 mi (146.55 km).
#1 Rossmoor
Census-designated place in Orange County, California, United States
| Population | 10,244 |
| Coordinates | 33.7855700, -118.0850600 |
| Altitude | 4 |
| Country | United States |
#2 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 |
End: Front Street (-117.164717, 32.71571)
Estimated Travel Time
Distance: 162 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 21m |
| 40 mph (64.37 km/h) | 02h 31m |
| 50 mph (80.47 km/h) | 02h 00m |
| 60 mph (96.56 km/h) | 01h 40m |
| 70 mph (112.65 km/h) | 01h 26m |
| 80 mph (129 km/h) | 01h 15m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $20.48 | $40.96 |
| Mid-grade | $6.07 | $21.53 | $43.07 |
| Premium | $6.24 | $22.16 | $44.33 |
| Diesel | $7.57 | $26.86 | $53.73 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.