How far is Grass Valley, CA from Fontana, CA?
The driving distance from Grass Valley, CA to Fontana, CA is about 486.2 miles (782.5 km), with a travel time of about 09h 06m by car.
- The straight-line flight distance is about 407.2 miles (655.3 km).
- For a round trip, plan for roughly 18h 12m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM PDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 09h 06m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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.
Small city in Fresno County, California
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Patchy Fog then Partly Sunny
Driving Route Map
The map below follows the saved road route between Grass Valley and Fontana.
Turn-by-Turn Driving Directions
Step-by-step road directions between Grass Valley and Fontana.
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1
Start on Stewart Street
36 m · 11 sec · Stewart Street
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2
Turn left onto East Main Street
104 m · 13 sec · East Main Street
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3
Turn left onto South Auburn Street
1093 ft · 26 sec · South Auburn Street
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4
Take the ramp right
1105 ft · 16 sec
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5
Merge slight left onto Golden Center Freeway
14.9 mi · 20 min · Golden Center Freeway
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6
Continue on Grass Valley Highway
1.1 mi · 1 min · Grass Valley Highway
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7
Enter the roundabout and take exit 2 toward Grass Valley Highway
33 m · 3 sec · Grass Valley Highway
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8
Exit the roundabout onto Grass Valley Highway
1.3 mi · 2 min · Grass Valley Highway
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9
Enter the roundabout and take exit 2 toward Grass Valley Highway
32 m · 3 sec · Grass Valley Highway
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10
Exit the roundabout onto Grass Valley Highway
5.6 mi · 9 min · Grass Valley Highway
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11
Take the ramp slight right toward I 80 West: Sacramento
1346 ft · 33 sec
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12
Merge slight left onto Alan S. Hart Freeway
16.8 mi · 19 min · Alan S. Hart Freeway
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13
Continue on Dwight D. Eisenhower Highway
7.1 mi · 8 min · Dwight D. Eisenhower Highway
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14
Keep slight right to continue on Capital City Freeway
4.9 mi · 5 min · Capital City Freeway
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15
Keep slight left to continue on Capital City Freeway
3.7 mi · 4 min · Capital City Freeway
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16
Keep slight right to continue on Capital City Freeway
1.9 mi · 2 min · Capital City Freeway
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17
Take the exit slight right toward I 5: Los Angeles, Redding
803 ft · 15 sec
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18
Keep slight left to continue on I 5 South: Los Angeles
1.3 km · 2 min
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19
Merge slight left onto Westside Freeway
59 mi · 1 hr 5 min · Westside Freeway
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20
Keep slight left to continue on Westside Freeway
1.2 km · 49 sec · Westside Freeway
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21
Keep slight left to continue on Westside Freeway
236.6 mi · 4 hr 14 min · Westside Freeway
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22
Keep slight right
58.4 mi · 1 hr 7 min
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23
Keep slight left to continue on Golden State Freeway
2 mi · 2 min · Golden State Freeway
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24
Take the exit slight right toward I 210 East: Pasadena
1347 ft · 18 sec
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25
Continue on Foothill Freeway
24.4 mi · 28 min · Foothill Freeway
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26
Keep slight right to continue on Foothill Freeway
19.1 mi · 22 min · Foothill Freeway
-
27
Keep slight right to continue on Foothill Freeway
2.9 mi · 3 min · Foothill Freeway
-
28
Keep slight right to continue on Foothill Freeway
1.4 mi · 2 min · Foothill Freeway
-
29
Keep slight right to continue on Foothill Freeway
1.2 mi · 1 min · Foothill Freeway
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30
Keep slight right to continue on Foothill Freeway
1.8 mi · 2 min · Foothill Freeway
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31
Keep slight right to continue on Foothill Freeway
16.1 mi · 19 min · Foothill Freeway
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32
Take the exit slight right toward Sierra Avenue
1796 ft · 46 sec
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33
Turn right onto Sierra Avenue
3 mi · 5 min · Sierra Avenue
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34
Turn left onto Merrill Avenue
63 m · 4 sec · Merrill Avenue
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35
Arrive at your destination
0 m · 1 sec · Merrill Avenue
Car Route Details
A richer read on the saved driving route between Grass Valley and Fontana.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Westside Freeway
Keep slight left to continue on Westside Freeway
237 mi · 04h 14m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Mostly Sunny leaving Grass Valley and Patchy Fog then Partly Sunny near Fontana.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Grass Valley to Fontana?
The road trip is about 486.2 miles (782.5 km) and usually takes 09h 06m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Huron is a useful midpoint, sitting about 243.2 miles from Grass Valley and 243 miles from Fontana.
How much longer is the road route than the straight-line distance?
The direct path is about 407.2 miles (655.3 km), while the road route adds roughly 79 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 6:00 AM to 7:30 AM PDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $99.00 one way or $197.99 round trip. Estimated CO2 is about 152.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Grass Valley and Patchy Fog then Partly Sunny near Fontana.
Stop Ideas Near Huron
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Huron.
Lemoore (Naval Air Station), California
Kettleman City, California
Lemoore, California
Hanford station
Flight Path Map
This map shows the direct air route between Grass Valley and Fontana. Straight-line distance: 407.18 mi (655.3 km).
#1 Grass Valley
City in Nevada County, California, United States
| Population | 12,763 |
| Coordinates | 39.2190600, -121.0610600 |
| Altitude | 735 |
| Country | United States |
#2 Fontana
The second most populous city in San Bernardino County, California.
| Population | 216,173 |
| Coordinates | 34.0922300, -117.4350500 |
| Altitude | 377 |
| Country | United States |
End: Fontana (-117.43505, 34.09223)
Estimated Travel Time
Distance: 783 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 16h 12m |
| 40 mph (64.37 km/h) | 12h 09m |
| 50 mph (80.47 km/h) | 09h 43m |
| 60 mph (96.56 km/h) | 08h 06m |
| 70 mph (112.65 km/h) | 06h 56m |
| 80 mph (129 km/h) | 06h 03m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $99.00 | $197.99 |
| Mid-grade | $6.07 | $104.09 | $208.19 |
| Premium | $6.24 | $107.13 | $214.26 |
| Diesel | $7.57 | $129.85 | $259.70 |
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 16, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.