How far is Fresno, CA from Byron, CA?
The driving distance from Fresno, CA to Byron, CA is about 138.6 miles (223 km), with a travel time of about 02h 48m by car.
- The straight-line flight distance is about 128.4 miles (206.7 km).
- For a round trip, plan for roughly 05h 36m 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 02h 48m.
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 California
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Fresno and Byron.
Turn-by-Turn Driving Directions
Step-by-step road directions between Fresno and Byron.
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1
Start on East Washington Avenue
9 m · 3 sec · East Washington Avenue
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2
Turn right onto North First Street
968 ft · 23 sec · North First Street
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3
Turn left onto East Belmont Avenue
2.9 mi · 6 min · East Belmont Avenue
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4
Take the ramp right toward CA 99 North
965 ft · 23 sec
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5
Merge slight left
9.4 mi · 11 min
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6
Take the exit slight right toward Avenue 7
2522 ft · 31 sec
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7
Merge slight left
21.4 mi · 24 min
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8
Keep slight right to continue on Northbound California State Route 99
74.7 mi · 1 hr 27 min · Northbound California State Route 99
-
9
Take the exit slight right toward CA 120 West: Manteca, San Francisco
1.5 km · 2 min
-
10
Merge slight right
6.8 mi · 8 min
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11
Merge slight left onto Westside Freeway
1.2 mi · 1 min · Westside Freeway
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12
Keep slight right to continue on Robert T. Monagan Freeway
7.3 mi · 8 min · Robert T. Monagan Freeway
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13
Take the exit slight right toward Naglee Road, Grant Line Road
1639 ft · 42 sec
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14
Turn left onto Naglee Road
1488 ft · 40 sec · Naglee Road
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15
Turn right onto West Grant Line Road
1 mi · 2 min · West Grant Line Road
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16
Turn straight onto Byron Road
2504 ft · 42 sec · Byron Road
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17
Enter the roundabout and take exit 1 toward Byron Road
18 m · 1 sec · Byron Road
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18
Exit the roundabout onto Byron Road
4.5 mi · 7 min · Byron Road
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19
Continue on Byron-Bethany Road
1.5 mi · 2 min · Byron-Bethany Road
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20
Continue on Byron Highway
5 mi · 8 min · Byron Highway
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21
Turn right
5 m · 1 sec
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22
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Fresno and Byron.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Northbound California State Route 99
Keep slight right to continue on Northbound California State Route 99
74.7 mi · 01h 27m
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.
Sunny leaving Fresno and Sunny near Byron.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Fresno to Byron?
The road trip is about 138.6 miles (223 km) and usually takes 02h 48m 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?
Livingston is a useful midpoint, sitting about 69.2 miles from Fresno and 69.3 miles from Byron.
How much longer is the road route than the straight-line distance?
The direct path is about 128.4 miles (206.7 km), while the road route adds roughly 10.2 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 12:54 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $30.62 one way or $61.23 round trip. Estimated CO2 is about 43.5 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Fresno and Sunny near Byron.
Stop Ideas Near Livingston
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 Livingston.
Denair station
Merced station
Modesto station
Manteca, CA
Flight Path Map
This map shows the direct air route between Fresno and Byron. Straight-line distance: 128.42 mi (206.68 km).
#1 Fresno
The fifth most populous city in California and the center of the Fresno metropolitan area.
| Population | 530,267 |
| Coordinates | 36.7477300, -119.7723700 |
| Altitude | 94 |
| Country | United States |
#2 Byron
Situated in eastern Contra Costa County at an elevation of 33 feet, this unincorporated community sits in the western San Joaquin Valley near the Sacramento-San Joaquin River Delta.
| Population | 0 |
| Coordinates | 37.8671500, -121.6380100 |
| Altitude | 10 |
| Country | United States |
End: Byron (-121.63801, 37.86715)
Estimated Travel Time
Distance: 223 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 37m |
| 40 mph (64.37 km/h) | 03h 27m |
| 50 mph (80.47 km/h) | 02h 46m |
| 60 mph (96.56 km/h) | 02h 18m |
| 70 mph (112.65 km/h) | 01h 58m |
| 80 mph (129 km/h) | 01h 43m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $6.26 | $30.62 | $61.23 |
| Mid-grade | $6.50 | $31.78 | $63.56 |
| Premium | $6.69 | $32.71 | $65.42 |
| Diesel | $8.41 | $41.14 | $82.28 |
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 · Oct 15, 2026