How far is Half Moon Bay, CA from Fremont, CA?
The driving distance from Half Moon Bay, CA to Fremont, CA is about 36.2 miles (58.2 km), with a travel time of about 00h 49m by car.
- The straight-line flight distance is about 24.8 miles (39.9 km).
- For a round trip, plan for roughly 01h 39m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM PDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 49m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
City in San Mateo County, California, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Half Moon Bay and Fremont.
Turn-by-Turn Driving Directions
Step-by-step road directions between Half Moon Bay and Fremont.
-
1
Start on Kelly Street
58 m · 9 sec · Kelly Street
-
2
Turn right onto Main Street
1634 ft · 42 sec · Main Street
-
3
Turn right onto San Mateo Road
4.9 mi · 8 min · San Mateo Road
-
4
Continue on Half Moon Bay Road
2.7 mi · 4 min · Half Moon Bay Road
-
5
Continue on J Arthur Younger Freeway
17 mi · 21 min · J Arthur Younger Freeway
-
6
Take the exit slight right toward I 880: Oakland, San Jose, Hesperian Boulevard
1112 ft · 15 sec
-
7
Keep slight left to continue on I 880: Oakland, San Jose
3241 ft · 43 sec
-
8
Keep slight right to continue on I 880 South: San Jose
1683 ft · 24 sec
-
9
Merge slight left onto Nimitz Freeway
1 mi · 1 min · Nimitz Freeway
-
10
Keep slight left
2.4 mi · 3 min
-
11
Keep slight left
5.6 mi · 6 min
-
12
Take the exit slight right toward Mowry Avenue, Central Fremont
1404 ft · 36 sec
-
13
Turn left
36 m · 3 sec
-
14
Turn straight onto Mowry Avenue
643 ft · 11 sec · Mowry Avenue
-
15
Continue on Mowry Avenue
1.5 mi · 3 min · Mowry Avenue
-
16
Arrive at your destination
0 m · 1 sec · Mowry Avenue
Car Route Details
A richer read on the saved driving route between Half Moon Bay and Fremont.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
J Arthur Younger Freeway
Continue on J Arthur Younger Freeway
17 mi · 00h 21m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Mostly Sunny leaving Half Moon Bay and Sunny near Fremont.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Half Moon Bay to Fremont?
The road trip is about 36.2 miles (58.2 km) and usually takes 00h 49m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Foster City is a useful midpoint, sitting about 18.5 miles from Half Moon Bay and 17.7 miles from Fremont.
How much longer is the road route than the straight-line distance?
The direct path is about 24.8 miles (39.9 km), while the road route adds roughly 11.4 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 8:00 AM to 10:00 AM PDT. If you want a more comfortable same-day return, try to leave by 4:50 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.38 one way or $14.77 round trip. Estimated CO2 is about 11.4 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Half Moon Bay and Sunny near Fremont.
Stop Ideas Near Foster City
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 Foster City.
Hayward station
Oakland Coliseum station
Fremont station
Oakland – Jack London Square station
Flight Path Map
This map shows the direct air route between Half Moon Bay and Fremont. Straight-line distance: 24.82 mi (39.94 km).
#1 Half Moon Bay
City in San Mateo County, California
| Population | 12,513 |
| Coordinates | 37.4635500, -122.4285900 |
| Altitude | 22 |
| Country | United States |
#2 Fremont
The fifth most populous city in California.
| Population | 234,569 |
| Coordinates | 37.5482700, -121.9885700 |
| Altitude | 17 |
| Country | United States |
End: Mowry Avenue (-121.988548, 37.548259)
Estimated Travel Time
Distance: 58 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 12m |
| 40 mph (64.37 km/h) | 00h 54m |
| 50 mph (80.47 km/h) | 00h 43m |
| 60 mph (96.56 km/h) | 00h 36m |
| 70 mph (112.65 km/h) | 00h 31m |
| 80 mph (129 km/h) | 00h 27m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $7.38 | $14.77 |
| Mid-grade | $6.07 | $7.76 | $15.53 |
| Premium | $6.24 | $7.99 | $15.98 |
| Diesel | $7.57 | $9.69 | $19.37 |
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 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.