Origin
Atwater, CA
Afternoon in Atwater on Sunday
Local time
3:33 PM
PDT
Current temp
74°F
Unavailable
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Create accountDrive Time
6h 8m
Distance
326.2 mi
525 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$76
one way
EV Charging
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station data
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Atwater, CA
Stephen Leonardi
Spanning 326.2 miles, the trek from Atwater to Fontana is a straightforward journey typically taking 6 hours and 8 minutes. Because the entire route stays within the Pacific Coast region of California, you can easily complete this drive in a single day. Budgeting approximately $76 for fuel is a smart way to prepare for the trip ahead. Since it is designed as a highway-focused drive, you will spend most of your time on major corridors, making it a functional rather than leisurely excursion. Whether you are traveling for business or visiting family, this route provides a consistent path between these two points.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
163.1 miles from Atwater, CA
A natural place for your longest stop of the day , about 3h into the drive .
Expect a high-speed experience, as 80% of this journey is comprised of highway driving. You will navigate via CA 99, the Golden State Freeway, and the Foothill Freeway, which keep traffic moving steadily toward your destination. Be prepared for a long haul, as the longest uninterrupted stretch covers 102.5 miles on CA 99. The character of the road is largely defined by this interstate grind, offering a consistent pace that requires steady focus rather than technical maneuvering. By staying primarily on these major arteries, you gain efficiency at the cost of varied road types.
This is a straightforward highway drive that stays mostly on CA 99 and Golden State Freeway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 63.3 miles in near CA 99.
Demanding - plan breaks and stay ahead of the key maneuvers
This is a demanding drive. With 18 significant decision points across 326.2 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 63.3 miles (CA 99): Highway fork - watch signs carefully. Lane positioning matters here; at 168 miles (CA 99 / Golden State Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 255.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
These are the spots where you need to pay the most attention. Preview them before you drive.
Keep slight left at fork onto CA 99
Highway fork - watch signs carefully. Lane positioning matters here
Keep slight left at fork onto CA 99 / Golden State Freeway toward CA 99 South: Los Angeles
Highway fork - watch signs carefully. Lane positioning matters here
Take the exit toward I 210 East: Pasadena
Exit ramp - move to the correct lane early. Lane positioning matters here
Keep slight right at fork onto I 210 / Foothill Freeway toward CA 134 West, I 210 East: San Bernardino, Ventura
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Take the exit toward Sierra Avenue
Exit ramp - move to the correct lane early. Lane positioning matters here
On the drive from Atwater, CA to Fontana, CA, road signs begin pointing toward Ventura along the way.
Ventura
| Road | Distance | Duration |
|---|---|---|
| CA 99 | 102.5 mi | 1h 54m |
| Golden State Freeway | 92.8 mi | 1h 44m |
| Foothill Freeway | 67 mi | 1h 17m |
| Golden State Highway | 58.6 mi | 1h 2m |
| Sierra Avenue | 3 mi | 4m |
| Atwater Boulevard | 1.5 mi | 2m |
| 3rd Street | 0.1 mi | <1m |
| Merrill Avenue | <0.1 mi | <1m |
Step-by-step road directions between Atwater, CA and Fontana, CA.
Start on Cedar Avenue
Turn right onto 3rd Street
At end of road, turn left onto Atwater Boulevard
Take the ramp
Merge onto CA 99
Keep slight left at fork onto CA 99
Keep slight left at fork onto CA 99
Continue on CA 99
Keep slight left at fork onto CA 99
Keep slight left at fork onto CA 99
Keep slight left at fork onto I 5
Take the exit
Continue on I 210
Keep slight right at fork onto I 210
Keep slight right at fork onto I 210
Keep slight right at fork onto CA 210
Keep slight right at fork onto CA 210
Keep slight right at fork onto CA 210
Keep slight right at fork onto CA 210
Take the exit
Turn right onto Sierra Avenue
Turn left onto Merrill Avenue
Arrive at destination
To keep your drive manageable, aim to head out early in the day to avoid peak congestion on the major freeways. While the trip is feasible as a one-day run, planning for at least one dedicated stop will help you stay refreshed for the full 6-hour duration. Keep an eye on your fuel gauge during that 102.5-mile stretch on CA 99, as finding a convenient exit for a quick break or a refill is your best strategy for maintaining momentum. Since the route is entirely highway-reliant, flexibility is your greatest advantage; if you hit unexpected traffic, use your navigation tools to gauge the flow on the Golden State or Foothill freeways before committing to your next stop.
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 80 miles or 1h 31m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 163.1 miles or 3h in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 59m
Traffic, exits, and arrival timing usually matter more near Fontana, CA than in the middle of the route.
Open the route before leaving Atwater, CA so your first major turns are already loaded.
Leave with enough water and a charging cable within reach, not packed away.
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Atwater, CA
This is one driving day of about 326.2 miles and 6h 8m.
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 163.1 mi from Atwater, CA · 3h into the drive
Mid-route town
Meal stop
163 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 80 miles helps settle the day before fatigue starts building.
The midpoint is around 163.1 miles from Atwater, CA, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before CA 99 if your tank is already low. That segment runs about 102.5 miles.
The final approach into Fontana, CA usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Fontana, CA.
After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Regular Gas
$75.54 one way
$151.08 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $6.07 | $77.90 | $155.81 |
| premium | $6.24 | $80.18 | $160.35 |
| diesel | $5.64 | $72.47 | $144.94 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$76
Meals
$25–$50
Total
$101–$126
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 114.1 kg one way. Prices: EIA weekly data, 2026-04-06.
Driving Electric?
About $34 in charging · 1 stop · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 97.9 | 1 | $34.25 | $15.66 |
| Efficient EV | 81.6 | 0 | $28.54 | $13.05 |
| EV Truck/SUV | 130.5 | 1 | $45.67 | $20.88 |
Gas CO2
114 kg
EV CO2
38 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Current conditions at both ends of the drive.
Origin
Afternoon in Atwater on Sunday
Local time
3:33 PM
PDT
Current temp
74°F
Unavailable
Destination
Afternoon in Fontana on Sunday
Local time
3:33 PM
PDT
Current temp
54°F
Unavailable
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
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