How far is St. Petersburg, FL from Upper Grand Lagoon, FL?

The driving distance from St. Petersburg, FL to Upper Grand Lagoon, FL is about 358.2 miles (576.5 km), with a travel time of about 07h 49m by car.

  • The straight-line flight distance is about 248.1 miles (399.3 km).
  • For a round trip, plan for roughly 15h 39m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 7:30 AM EDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
358.19 mi
07h 49m
Flight
248.11 mi
399.3 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from St. Petersburg.

Flight Distance

Direct air line
248.11 mi
Kilometers
399.3 km
Flight Time
00h 29m

Driving Distance

Road route
358.19 mi
Kilometers
576.45 km
Drive Time
07h 49m

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 07h 49m.

Arrival Snapshot
Arrive in Upper Grand Lagoon
Thu, Apr 23, 5:52 AM CDT
Return by in St. Petersburg
Thu, Apr 23, 2:41 PM EDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave St. Petersburg
2026-04-22T23:02
Arrive Upper Grand Lagoon
Thu, Apr 23, 6:52 AM EDT
Route Timing
07h 49m
One way by road
Best Departure Window
6:00 AM to 7:30 AM EDT
Treat this as a longer travel day
Arrive between
12:50 PM to 2:20 PM CDT

Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.

Leave by
8:20 PM EDT
Keeps a same-day return open with about 08h 00m at the destination.
Back in St. Petersburg
8:00 PM EDT
Overnight-style route

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.

Mid-route stop
Cross City
FL

Town in Florida, United States

From St. Petersburg
179.2 mi
03h 54m
To Upper Grand Lagoon
179 mi
03h 54m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
86°F
Wednesday

Mostly Sunny

Starts
Wed, Apr 22 6:00 AM EDT
Wind
8 mph ENE
Destination
75°F
Wednesday

Mostly Sunny

Starts
Wed, Apr 22 6:00 AM CDT
Wind
5 to 15 mph SE

Driving Route Map

The map below follows the saved road route between St. Petersburg and Upper Grand Lagoon.

Turn-by-Turn Driving Directions

Step-by-step road directions between St. Petersburg and Upper Grand Lagoon.

  1. 1

    Start on 34th Street South

    2326 ft · 1 min · 34th Street South

  2. 2

    Turn right onto 5th Avenue North

    1.2 mi · 2 min · 5th Avenue North

  3. 3

    Take the ramp left toward I 275 North

    1811 ft · 50 sec

  4. 4

    Merge slight left

    15.2 mi · 19 min

  5. 5

    Take the exit slight right toward FL 60: Clearwater, Tampa International Airport, Kennedy Boulevard, West Shore Boulevard

    2708 ft · 1 min

  6. 6

    Keep slight right to continue on FL 60 East: Kennedy Boulevard, West Shore Boulevard

    1762 ft · 42 sec

  7. 7

    Continue on West Kennedy Boulevard

    1581 ft · 32 sec · West Kennedy Boulevard

  8. 8

    Turn left onto Memorial Highway

    1.1 km · 1 min · Memorial Highway

  9. 9

    Keep slight left to continue on Veterans Expressway

    4.5 mi · 6 min · Veterans Expressway

  10. 10

    Keep slight left to continue on FL 589 Toll Express Lane

    3.2 mi · 4 min · FL 589 Toll Express Lane

  11. 11

    Merge slight left onto Veterans Expressway

    1 km · 48 sec · Veterans Expressway

  12. 12

    Keep slight left to continue on FL 589 Toll Express Lane

    4.6 mi · 6 min · FL 589 Toll Express Lane

  13. 13

    Merge slight right onto Veterans Expressway

    1938 ft · 28 sec · Veterans Expressway

  14. 14

    Keep slight left to continue on Suncoast Parkway

    54.2 mi · 59 min · Suncoast Parkway

  15. 15

    Take the exit slight right toward FL 44: Gulf to Lake Highway

    1944 ft · 44 sec

  16. 16

    Turn left onto Gulf to Lake Highway

    4.8 mi · 8 min · Gulf to Lake Highway

  17. 17

    Continue on Northeast 5th Street

    1.4 km · 2 min · Northeast 5th Street

  18. 18

    Turn right onto Suncoast Boulevard

    47 mi · 59 min · Suncoast Boulevard

  19. 19

    Continue on Young Boulevard

    66.5 mi · 1 hr 26 min · Young Boulevard

  20. 20

    Turn left onto Hampton Springs Avenue

    38.6 mi · 50 min · Hampton Springs Avenue

  21. 21

    Turn right onto Bloxham Cutoff Road

    30.8 mi · 42 min · Bloxham Cutoff Road

  22. 22

    At the end of the road, turn left onto Jackson Bluff Road

    1.1 km · 57 sec · Jackson Bluff Road

  23. 23

    Continue on Blountstown Highway

    49.2 mi · 1 hr 8 min · Blountstown Highway

  24. 24

    Turn left

    22.5 mi · 30 min

  25. 25

    Turn right onto East 23rd Street

    5.4 mi · 9 min · East 23rd Street

  26. 26

    Take the ramp slight left

    1693 ft · 43 sec

  27. 27

    Merge slight left

    1.6 mi · 3 min

  28. 28

    Take the exit straight

    1295 ft · 41 sec

  29. 29

    Turn left onto Navy Boulevard

    1.3 mi · 2 min · Navy Boulevard

  30. 30

    Turn left onto Coast Guard Road

    1812 ft · 53 sec · Coast Guard Road

  31. 31

    Turn right

    1239 ft · 55 sec

  32. 32

    Continue on Magnolia Beach Road

    664 ft · 34 sec · Magnolia Beach Road

  33. 33

    Turn left

    1642 ft · 2 min

  34. 34

    Keep slight left

    43 m · 11 sec

  35. 35

    Turn right

    1237 ft · 56 sec

  36. 36

    Turn right

    37 m · 8 sec

  37. 37

    Turn right onto Ammo Road

    101 m · 19 sec · Ammo Road

  38. 38

    Turn left

    150 m · 36 sec

  39. 39

    Arrive at your destination

    0 m · 1 sec

Car Route Details

A richer read on the saved driving route between St. Petersburg and Upper Grand Lagoon.

OSRM road route
Drive Character

Long-distance drive

This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.

Directions
39 steps
17 turns on the saved route
Ramps & Exits
9
4 merges, 5 ramps or exits
Navigation Density
10.9 / 100 mi
Decision points by distance
Main Roads
Young Boulevard
66.5 mi · 19%
Suncoast Parkway
54.2 mi · 15%
Blountstown Highway
49.2 mi · 14%
Suncoast Boulevard
47 mi · 13%
Hampton Springs Avenue
38.6 mi · 11%
Bloxham Cutoff Road
30.8 mi · 9%
Longest Stretch

Young Boulevard

Continue on Young Boulevard

66.5 mi · 01h 26m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

Better with a longer stop

This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.

Drive Time
07h 49m
Overnight route
Same-Day Return
15h 40m
Round-trip wheel time
Road vs Air
+110.1 mi
248.1 mi direct line
Halfway Stop
Cross City
03h 54m from St. Petersburg
Leave By
8:20 PM EDT
Overnight-style route
Weather Watch

Mostly Sunny leaving St. Petersburg and Mostly Sunny near Upper Grand Lagoon.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from St. Petersburg to Upper Grand Lagoon?

The road trip is about 358.2 miles (576.5 km) and usually takes 07h 49m in normal driving conditions.

Is this a same-day trip or an overnight route?

This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.

What is the halfway point on this route?

Cross City is a useful midpoint, sitting about 179.2 miles from St. Petersburg and 179 miles from Upper Grand Lagoon.

How much longer is the road route than the straight-line distance?

The direct path is about 248.1 miles (399.3 km), while the road route adds roughly 110.1 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 7:30 AM EDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $52.43 one way or $104.86 round trip. Estimated CO2 is about 112.3 kg one way.

Do you cross a time zone on this route?

Yes. There is about a 1 hour time difference between St. Petersburg and Upper Grand Lagoon, so arrival and return times should be read in local time.

What should you check before leaving?

Before you leave, expect Mostly Sunny around St. Petersburg and Mostly Sunny near Upper Grand Lagoon.

Stop Ideas Near Cross City

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
Local place coverage is thin around Cross City, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Cross City.

BUS

Gainesville, Florida

78 mi away
201 East University Ave.
BUS

Waldo, Florida

94 mi away
14648 NE 147th Avenue
BUS

Ocala, Florida

108 mi away
531 Northeast First Ave

Flight Path Map

This map shows the direct air route between St. Petersburg and Upper Grand Lagoon. Straight-line distance: 248.11 mi (399.3 km).

St. Petersburg

#1 St. Petersburg

The second most populous city in Florida.

Population253,693
Coordinates27.7708600, -82.6792700
Altitude13
CountryUnited States
Upper Grand Lagoon

#2 Upper Grand Lagoon

Census designated place

Population13,963
Coordinates30.1632600, -85.7407600
Altitude0
CountryUnited States
Start: St. Petersburg (-82.67927, 27.77086)
End: Upper Grand Lagoon (-85.74076, 30.16326)

Estimated Travel Time

Distance: 576 km by road

SpeedTime
30 mph (48.3 km/h)11h 56m
40 mph (64.37 km/h)08h 57m
50 mph (80.47 km/h)07h 09m
60 mph (96.56 km/h)05h 58m
70 mph (112.65 km/h)05h 07m
80 mph (129 km/h)04h 28m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
12.64 gal
47.85 L · about $52.43
Round trip
$104.86
25.28 gal · 95.7 L
Estimated CO2
112.3 kg one way
Round trip: 224.7 kg / 495 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $4.15 $52.43 $104.86
Mid-grade $4.60 $58.09 $116.19
Premium $4.90 $61.89 $123.77
Diesel $4.35 $54.98 $109.97

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 23, 2026

Please keep in mind that there is a 1 hour time gap between St. Petersburg, FL and Upper Grand Lagoon, FL. The current time in St. Petersburg is 23:02:33, although it is 22:02:33 in Upper Grand Lagoon.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.