Distance between cities › USA › California › Oceanside, CA › Distance from Oceanside to Simi Valley Book Hotels

Distance from Oceanside, CA to Simi Valley, CA

Distance

125 mi

Time

2 hours 30 mins

Gas Cost

$19 - $37

There are 109.50 miles from Oceanside to Simi Valley in northwest direction and 125 miles (201.17 kilometers) by car, following the I-5 route.

Oceanside and Simi Valley are 2 hours 30 mins far apart, if you drive non-stop .

This is the fastest route from Oceanside, CA to Simi Valley, CA. The halfway point is Buena Park, CA.

Oceanside, CA and Simi Valley, CA are in the same time zone (PDT). Current time in both locations is 10:34 am.

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Lowest Price Rental Cars in Oceanside, CA

Planning on renting a car to go from Oceanside, CA to Simi Valley, CA? Here there are some offers to rent a car in Oceanside, CA

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Oceanside »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 5.04 gallons of gas to cover the route between Oceanside, CA and Simi Valley, CA.

The estimated cost of gas to go from Oceanside to Simi Valley is $26.87.

During the route, an average car will release 98.67 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $5.34 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Oceanside, CA and Simi Valley, CA

If you want to meet halfway between Oceanside, CA and Simi Valley, CA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 33.873455 and -118.004181, or 33º 52' 24.438" N, 118º 0' 15.0516" W. This location is 62.70 miles away from Oceanside, CA and Simi Valley, CA and it would take approximately 1 hour 15 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest city to the halfway point is Buena Park, CA, situated 63 miles from Oceanside, CA and 62 miles from Simi Valley, CA. It would take 1 hour 1 min to go from Oceanside to Buena Park and 1 hour 6 mins to go from Simi Valley to Buena Park.

Major City Closest to Halfway Point

The major city closest to the halfway point between Oceanside, CA and Simi Valley, CA is Los Angeles, CA, situated 84 miles from Oceanside, CA and 42 miles from Simi Valley, CA. It would take 1 hour 23 mins to go from Oceanside to and 46 minutes to go from Simi Valley to Los Angeles.

Major Cities Along the Route

Some other major cities along the route include Carlsbad, CA,Irvine, CA,Santa Ana, CA,Orange, CA,Garden Grove, CA,Anaheim, CA,Fullerton, CA,Norwalk, CA,Downey, CA,East Los Angeles, CA,Glendale, CA, and Burbank, CA.