How far is St. Petersburg, FL from Lake Mary, FL?
The driving distance from St. Petersburg, FL to Lake Mary, FL is about 124.6 miles (200.6 km), with a travel time of about 02h 29m by car.
- The straight-line flight distance is about 107.4 miles (172.8 km).
- For a round trip, plan for roughly 04h 58m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
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 29m.
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 Polk County, Florida, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between St. Petersburg and Lake Mary.
Turn-by-Turn Driving Directions
Step-by-step road directions between St. Petersburg and Lake Mary.
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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
21.4 mi · 27 min
-
5
Take the exit slight right toward I 4 East: Orlando
2472 ft · 42 sec
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6
Continue straight
60.9 mi · 1 hr 7 min
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7
Keep slight left
13.4 mi · 16 min
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8
Keep slight right
23.1 mi · 28 min
-
9
Take the exit slight right toward Lake Mary, Heathrow
3117 ft · 1 min
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10
Turn right onto West Lake Mary Boulevard
2.4 mi · 4 min · West Lake Mary Boulevard
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11
Turn left onto Country Club Road
1032 ft · 23 sec · Country Club Road
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12
Turn right onto Crystal Lake Avenue
1368 ft · 38 sec · Crystal Lake Avenue
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13
Turn right onto Palmetto Street
15 m · 2 sec · Palmetto Street
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14
Arrive at your destination
0 m · 1 sec · Palmetto Street
Car Route Details
A richer read on the saved driving route between St. Petersburg and Lake Mary.
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 4 East
Continue straight
60.9 mi · 01h 07m
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.
Partly Sunny leaving St. Petersburg and Mostly Cloudy near Lake Mary.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from St. Petersburg to Lake Mary?
The road trip is about 124.6 miles (200.6 km) and usually takes 02h 29m 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?
Polk City is a useful midpoint, sitting about 62.3 miles from St. Petersburg and 62.3 miles from Lake Mary.
How much longer is the road route than the straight-line distance?
The direct path is about 107.4 miles (172.8 km), while the road route adds roughly 17.2 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 EDT. If you want a more comfortable same-day return, try to leave by 1:32 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $18.25 one way or $36.50 round trip. Estimated CO2 is about 39.1 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around St. Petersburg and Mostly Cloudy near Lake Mary.
Stop Ideas Near Polk 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 Polk City.
Lakeland
Lakeland
Winter Haven
Dade City, Florida
Flight Path Map
This map shows the direct air route between St. Petersburg and Lake Mary. Straight-line distance: 107.35 mi (172.76 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 Lake Mary
City in Seminole County, Florida, United States
| Population | 17,486 |
| Coordinates | 28.7588800, -81.3178400 |
| Altitude | 19 |
| Country | United States |
End: Lake Mary (-81.31784, 28.75888)
Estimated Travel Time
Distance: 201 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 09m |
| 40 mph (64.37 km/h) | 03h 06m |
| 50 mph (80.47 km/h) | 02h 29m |
| 60 mph (96.56 km/h) | 02h 04m |
| 70 mph (112.65 km/h) | 01h 46m |
| 80 mph (129 km/h) | 01h 33m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.15 | $18.25 | $36.50 |
| Mid-grade | $4.60 | $20.22 | $40.44 |
| Premium | $4.90 | $21.54 | $43.08 |
| Diesel | $4.35 | $19.14 | $38.28 |
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 Florida · Jun 02, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.