How far is St. Petersburg, FL from Interlachen, FL?
The driving distance from St. Petersburg, FL to Interlachen, FL is about 161.4 miles (259.7 km), with a travel time of about 03h 09m by car.
- The straight-line flight distance is about 136.6 miles (219.9 km).
- For a round trip, plan for roughly 06h 19m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
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 03h 09m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Town in Florida, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between St. Petersburg and Interlachen.
Turn-by-Turn Driving Directions
Step-by-step road directions between St. Petersburg and Interlachen.
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1
Start on 34th Street South
2326 ft · 1 min · 34th Street South
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2
Turn right onto 5th Avenue North
1.2 mi · 2 min · 5th Avenue North
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3
Take the ramp left toward I 275 North
1811 ft · 50 sec
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4
Merge slight left
37.7 mi · 47 min
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5
Merge slight left
82.3 mi · 1 hr 28 min
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6
Take the exit slight right toward FL 326
1315 ft · 32 sec
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7
Turn slight right
44 m · 5 sec
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8
Turn slight right
1.1 mi · 2 min
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9
Continue on Northwest 70th Street
1.5 mi · 2 min · Northwest 70th Street
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10
Turn left
5.5 mi · 7 min
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11
Turn straight onto North US 301: Starke
18.7 mi · 24 min
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12
Take the exit right
1138 ft · 31 sec
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13
Merge slight left onto Hawthorne Road
12.1 mi · 15 min · Hawthorne Road
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14
Turn right onto Commonwealth Avenue
130 m · 21 sec · Commonwealth Avenue
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15
Turn right
29 m · 4 sec
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16
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between St. Petersburg and Interlachen.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 275 North
Merge slight left
82.3 mi · 01h 28m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Sunny leaving St. Petersburg and Mostly Sunny near Interlachen.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from St. Petersburg to Interlachen?
The road trip is about 161.4 miles (259.7 km) and usually takes 03h 09m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Bushnell is a useful midpoint, sitting about 80.8 miles from St. Petersburg and 80.5 miles from Interlachen.
How much longer is the road route than the straight-line distance?
The direct path is about 136.6 miles (219.9 km), while the road route adds roughly 24.8 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 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 10:40 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $23.64 one way or $47.29 round trip. Estimated CO2 is about 50.7 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around St. Petersburg and Mostly Sunny near Interlachen.
Stop Ideas Near Bushnell
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 Bushnell.
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Flight Path Map
This map shows the direct air route between St. Petersburg and Interlachen. Straight-line distance: 136.64 mi (219.9 km).
#1 St. Petersburg
The second most populous city in Florida.
| Population | 253,693 |
| Coordinates | 27.7708600, -82.6792700 |
| Altitude | 13 |
| Country | United States |
#2 Interlachen
City in Putnam County, Florida, United States of America
| Population | 1,477 |
| Coordinates | 29.6242100, -81.8925600 |
| Altitude | 32 |
| Country | United States |
End: Interlachen (-81.89256, 29.62421)
Estimated Travel Time
Distance: 260 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 22m |
| 40 mph (64.37 km/h) | 04h 02m |
| 50 mph (80.47 km/h) | 03h 13m |
| 60 mph (96.56 km/h) | 02h 41m |
| 70 mph (112.65 km/h) | 02h 18m |
| 80 mph (129 km/h) | 02h 00m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.15 | $23.64 | $47.29 |
| Mid-grade | $4.60 | $26.20 | $52.39 |
| Premium | $4.90 | $27.91 | $55.81 |
| Diesel | $4.35 | $24.79 | $49.59 |
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 Florida · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.