How far is Fremont, CA from Union City, CA?
The driving distance from Fremont, CA to Union City, CA is about 8.5 miles (13.7 km), with a travel time of about 00h 13m by car.
- The straight-line flight distance is about 6.1 miles (9.8 km).
- For a round trip, plan for roughly 00h 27m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM PDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 13m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
A city in Alameda County, California.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Fremont and Union City.
Turn-by-Turn Driving Directions
Step-by-step road directions between Fremont and Union City.
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1
Start on Mowry Avenue
33 m · 5 sec · Mowry Avenue
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2
Continue on Mowry Avenue
1.4 mi · 3 min · Mowry Avenue
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3
Take the ramp straight toward I 880 North: Oakland
1572 ft · 41 sec
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4
Merge slight left onto Nimitz Freeway
5.3 mi · 6 min · Nimitz Freeway
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5
Take the exit slight right toward Alvarado-Niles Road
1162 ft · 33 sec
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6
Turn left onto Alvarado-Niles Road
1.1 km · 1 min · Alvarado-Niles Road
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7
Continue on Smith Street
2884 ft · 2 min · Smith Street
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8
Continue on Cambridge Way
75 m · 12 sec · Cambridge Way
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9
Arrive at your destination
0 m · 1 sec · Cambridge Way
Car Route Details
A richer read on the saved driving route between Fremont and Union City.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Nimitz Freeway
Merge slight left onto Nimitz Freeway
5.32 mi · 00h 06m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Mostly Sunny leaving Fremont and Mostly Sunny near Union City.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Fremont to Union City?
The road trip is about 8.5 miles (13.7 km) and usually takes 00h 13m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Newark is a useful midpoint, sitting about 4.2 miles from Fremont and 4.2 miles from Union City.
How much longer is the road route than the straight-line distance?
The direct path is about 6.1 miles (9.8 km), while the road route adds roughly 2.4 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 7:00 AM to 7:00 PM PDT. If you want a more comfortable same-day return, try to leave by 8:02 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $1.73 one way or $3.46 round trip. Estimated CO2 is about 2.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Fremont and Mostly Sunny near Union City.
Stop Ideas Near Newark
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 Newark.
Fremont station
Fremont (San Joaquin Buses), California
Hayward station
Santa Clara – Great America station
Flight Path Map
This map shows the direct air route between Fremont and Union City. Straight-line distance: 6.08 mi (9.79 km).
#1 Fremont
The fifth most populous city in California.
| Population | 234,569 |
| Coordinates | 37.5482700, -121.9885700 |
| Altitude | 17 |
| Country | United States |
#2 Union City
A city in Placer County, California.
| Population | 74,107 |
| Coordinates | 37.5963232, -122.0816297 |
| Altitude | 3 |
| Country | United States |
End: Union City (-122.08163, 37.596323)
Estimated Travel Time
Distance: 14 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 16m |
| 40 mph (64.37 km/h) | 00h 12m |
| 50 mph (80.47 km/h) | 00h 10m |
| 60 mph (96.56 km/h) | 00h 08m |
| 70 mph (112.65 km/h) | 00h 07m |
| 80 mph (129 km/h) | 00h 06m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $1.73 | $3.46 |
| Mid-grade | $6.07 | $1.82 | $3.64 |
| Premium | $6.24 | $1.87 | $3.75 |
| Diesel | $7.57 | $2.27 | $4.54 |
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 · May 29, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.