Distance between cities › USA › Texas › Katy, TX › Distance from Katy to Simi Valley Book Hotels

Distance from Katy, TX to Simi Valley, CA

Distance

1,556 mi

Time

1 day 2 hours

Gas Cost

$142 - $277

There are 1,376.72 miles from Katy to Simi Valley in northwest direction and 1,556 miles (2,504.14 kilometers) by car, following the I-10 and US-87 route.

Katy and Simi Valley are 1 day 2 hours far apart, if you drive non-stop .

This is the fastest route from Katy, TX to Simi Valley, CA.

Please note the time difference between Katy, TX and Simi Valley, CA is 2 hours. The current time in Katy is 9:42 pm and the current time in Simi Valley is 7:42 pm.

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Lowest Price Rental Cars in Katy, TX

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Katy »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 62.51 gallons of gas to cover the route between Katy, TX and Simi Valley, CA.

The estimated cost of gas to go from Katy to Simi Valley is $200.28.

During the route, an average car will release 1,224.67 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 $3.20 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Katy, TX and Simi Valley, CA

If you want to meet halfway between Katy, TX 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 32.242665 and -107.282612, or 32º 14' 33.594" N, 107º 16' 57.4032" W. This location is 778.24 miles away from Katy, TX and Simi Valley, CA and it would take approximately 13 hours 18 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Fairacres, NM, situated 762 miles from Katy, TX and 795 miles from Simi Valley, CA. It would take 12 hours 40 mins to go from Katy to Fairacres and 14 hours 1 min to go from Simi Valley to Fairacres.

Major City Closest to Halfway Point

The major city closest to the halfway point between Katy, TX and Simi Valley, CA is Las Cruces, NM, situated 760 miles from Katy, TX and 801 miles from Simi Valley, CA. It would take 12 hours 39 mins to go from Katy to Las Cruces and 14 hours 10 mins to go from Simi Valley to Las Cruces.

Major Cities Along the Route

Some other major cities along the route include Rialto, CA, Los Angeles, CA, Pomona, CA, Glendale, CA, Rancho Cucamonga, CA, East Los Angeles, CA, Phoenix, AZ, Ontario, CA, El Paso, TX, San Bernardino, CA, Tempe, AZ, El Monte, CA, Burbank, CA, West Covina, CA and Fontana, CA.