How far is Irvine, CA from Simi Valley, CA?
The driving distance from Irvine, CA to Simi Valley, CA is about 85.7 miles (137.9 km), with a travel time of about 01h 41m by car.
- The straight-line flight distance is about 68.8 miles (110.7 km).
- For a round trip, plan for roughly 03h 22m 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 41m.
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 second most populous city in the United States and the center of the Los Angeles metropolitan area.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Irvine and Simi Valley.
Turn-by-Turn Driving Directions
Step-by-step road directions between Irvine and Simi Valley.
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1
Start on San Diego Freeway
1.4 mi · 2 min · San Diego Freeway
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2
Take the exit slight right toward University Drive, Jeffrey Road
1456 ft · 21 sec
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3
Turn left onto Jeffrey Road
951 ft · 22 sec · Jeffrey Road
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4
Take the ramp slight right toward I 405 North: Los Angeles
1228 ft · 18 sec
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5
Merge slight left onto San Diego Freeway
4.2 mi · 5 min · San Diego Freeway
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6
Take the exit slight right toward CA 55 South, CA 55 North: Freeway
1254 ft · 16 sec
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7
Keep slight right to continue on CA 55 North
2685 ft · 35 sec
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8
Merge slight left onto Costa Mesa Freeway
3.2 mi · 4 min · Costa Mesa Freeway
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9
Keep slight right to continue on Costa Mesa Freeway
2136 ft · 28 sec · Costa Mesa Freeway
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10
Take the exit slight right toward I 5 North: Santa Ana
1.1 km · 47 sec
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11
Merge slight left onto Santa Ana Freeway
2756 ft · 36 sec · Santa Ana Freeway
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12
Keep slight right to continue on Santa Ana Freeway
1.7 mi · 2 min · Santa Ana Freeway
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13
Keep slight right to continue on Santa Ana Freeway
9.4 mi · 11 min · Santa Ana Freeway
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14
Keep slight right to continue on Santa Ana Freeway
18 mi · 21 min · Santa Ana Freeway
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15
Keep slight right to continue on Golden State Freeway
22.9 mi · 27 min · Golden State Freeway
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16
Take the exit slight right toward CA 118 West, CA 118 East
702 ft · 9 sec
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17
Keep slight left to continue on CA 118 West
1.4 km · 59 sec
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18
Merge slight right onto Ronald Reagan Freeway
2639 ft · 35 sec · Ronald Reagan Freeway
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19
Keep slight right to continue on Ronald Reagan Freeway
1.8 mi · 2 min · Ronald Reagan Freeway
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20
Keep slight right to continue on Ronald Reagan Freeway
1 mi · 1 min · Ronald Reagan Freeway
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21
Keep slight right to continue on Ronald Reagan Freeway
1.9 mi · 2 min · Ronald Reagan Freeway
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22
Keep slight right to continue on Ronald Reagan Freeway
1.2 mi · 1 min · Ronald Reagan Freeway
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23
Keep slight right to continue on Ronald Reagan Freeway
1.9 mi · 2 min · Ronald Reagan Freeway
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24
Keep slight right to continue on Ronald Reagan Freeway
11.1 mi · 13 min · Ronald Reagan Freeway
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25
Take the exit slight right toward First Street
1667 ft · 53 sec
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26
Turn left onto First Street
1.3 km · 2 min · First Street
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27
Turn right onto East Los Angeles Avenue
697 ft · 17 sec · East Los Angeles Avenue
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28
Turn left onto 3rd Street
856 ft · 38 sec · 3rd Street
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29
Arrive at your destination
0 m · 1 sec · 3rd Street
Car Route Details
A richer read on the saved driving route between Irvine and Simi Valley.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Golden State Freeway
Keep slight right to continue on Golden State Freeway
22.9 mi · 00h 27m
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 Irvine and Sunny near Simi Valley.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Irvine to Simi Valley?
The road trip is about 85.7 miles (137.9 km) and usually takes 01h 41m 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?
Los Angeles is a useful midpoint, sitting about 42.8 miles from Irvine and 42.9 miles from Simi Valley.
How much longer is the road route than the straight-line distance?
The direct path is about 68.8 miles (110.7 km), while the road route adds roughly 16.9 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 3:08 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $17.42 one way or $34.84 round trip. Estimated CO2 is about 26.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Irvine and Sunny near Simi Valley.
Stop Ideas Near Los Angeles
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 Los Angeles
City Of El Monte Public Works Department
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Los Angeles.
Los Angeles Union Station
Glendale Transportation Center
Pasadena, California
Westchester, CA
Flight Path Map
This map shows the direct air route between Irvine and Simi Valley. Straight-line distance: 68.8 mi (110.73 km).
#1 Irvine
A city located in Orange County, California.
| Population | 283,700 |
| Coordinates | 33.6694600, -117.8231100 |
| Altitude | 17 |
| Country | United States |
#2 Simi Valley
The third most populous city in Ventura County, California.
| Population | 125,168 |
| Coordinates | 34.2694500, -118.7814800 |
| Altitude | 234 |
| Country | United States |
End: Simi Valley (-118.78148, 34.26945)
Estimated Travel Time
Distance: 138 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 51m |
| 40 mph (64.37 km/h) | 02h 08m |
| 50 mph (80.47 km/h) | 01h 42m |
| 60 mph (96.56 km/h) | 01h 25m |
| 70 mph (112.65 km/h) | 01h 13m |
| 80 mph (129 km/h) | 01h 04m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $17.42 | $34.84 |
| Mid-grade | $6.07 | $18.32 | $36.64 |
| Premium | $6.24 | $18.85 | $37.71 |
| Diesel | $7.57 | $22.85 | $45.70 |
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.