How far is Troy, MO from Castle Point, MO?
The driving distance from Troy, MO to Castle Point, MO is about 51.4 miles (82.7 km), with a travel time of about 00h 54m by car.
- The straight-line flight distance is about 42.3 miles (68 km).
- For a round trip, plan for roughly 01h 48m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
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 54m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
The most populous city in St.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Troy and Castle Point.
Turn-by-Turn Driving Directions
Step-by-step road directions between Troy and Castle Point.
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1
Start on the route
30 m · 12 sec
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2
At the end of the road, turn left onto 2nd Street
30 m · 7 sec · 2nd Street
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3
Turn right onto East Cherry Street
1042 ft · 21 sec · East Cherry Street
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4
Enter the roundabout and take exit 1 toward East Cherry Street
35 m · 3 sec · East Cherry Street
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5
Exit the roundabout onto East Cherry Street
2215 ft · 50 sec · East Cherry Street
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6
Turn left onto North Lincoln Drive
1177 ft · 24 sec · North Lincoln Drive
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7
Turn slight right
63 m · 8 sec
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8
Turn slight right
837 ft · 21 sec
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9
Take the ramp slight right toward US 61 South: Saint Louis
1011 ft · 15 sec
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10
Merge slight left onto Avenue of the Saints
15.1 mi · 19 min · Avenue of the Saints
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11
Take the exit slight left toward I 70 East: Saint Louis
2705 ft · 51 sec
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12
Merge slight left onto Dwight D Eisenhower Highway
21.2 mi · 26 min · Dwight D Eisenhower Highway
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13
Take the exit slight right toward I 270: Chicago, Memphis
872 ft · 12 sec
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14
Keep slight left to continue on I 270 North: Chicago
2556 ft · 36 sec
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15
Continue on I 270 North: Chicago
1270 ft · 18 sec
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16
Keep slight left to continue on I 270 North: Chicago
988 ft · 14 sec
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17
Merge slight left
9 mi · 11 min
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18
Take the exit slight right toward AC: New Halls Ferry Road, Old Halls Ferry Road
1556 ft · 38 sec
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19
Turn straight onto Pershall Road
1677 ft · 48 sec · Pershall Road
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20
Turn right onto New Halls Ferry Road
3172 ft · 58 sec · New Halls Ferry Road
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21
Continue on Halls Ferry Road
1766 ft · 35 sec · Halls Ferry Road
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22
Turn left onto Hudson Drive
1352 ft · 1 min · Hudson Drive
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23
Turn right onto Edgefield Drive
1370 ft · 1 min · Edgefield Drive
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24
Turn left onto Duchess Drive
1166 ft · 57 sec · Duchess Drive
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25
Turn left onto Lord Drive
87 m · 13 sec · Lord Drive
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26
Arrive at your destination
0 m · 1 sec · Lord Drive
Car Route Details
A richer read on the saved driving route between Troy and Castle Point.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Dwight D Eisenhower Highway
Merge slight left onto Dwight D Eisenhower Highway
21.2 mi · 00h 26m
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.
Showers And Thunderstorms leaving Troy and Showers And Thunderstorms near Castle Point.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Troy to Castle Point?
The road trip is about 51.4 miles (82.7 km) and usually takes 00h 54m 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?
O'Fallon is a useful midpoint, sitting about 25.2 miles from Troy and 26.2 miles from Castle Point.
How much longer is the road route than the straight-line distance?
The direct path is about 42.3 miles (68 km), while the road route adds roughly 9.1 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 4:42 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.83 one way or $13.65 round trip. Estimated CO2 is about 16.1 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Troy and Showers And Thunderstorms near Castle Point.
Stop Ideas Near O'Fallon
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City Hall Park
City of O'Fallon
Swingley Ridge @ Chesterfield City Hall SB
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to O'Fallon.
Kirkwood
Washington
Gateway Transportation Center
Alton
Flight Path Map
This map shows the direct air route between Troy and Castle Point. Straight-line distance: 42.27 mi (68.03 km).
#1 Troy
City in Lincoln County, Montana, USA
| Population | 13,341 |
| Coordinates | 38.9794900, -90.9807000 |
| Altitude | 165 |
| Country | United States |
#2 Castle Point
A census-designated place in Jefferson County, Missouri.
| Population | 90,070 |
| Coordinates | 38.7581100, -90.2481700 |
| Altitude | 152 |
| Country | United States |
End: Count Drive (-90.248701, 38.758102)
Estimated Travel Time
Distance: 83 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 42m |
| 40 mph (64.37 km/h) | 01h 17m |
| 50 mph (80.47 km/h) | 01h 01m |
| 60 mph (96.56 km/h) | 00h 51m |
| 70 mph (112.65 km/h) | 00h 44m |
| 80 mph (129 km/h) | 00h 38m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $6.83 | $13.65 |
| Mid-grade | $4.25 | $7.70 | $15.40 |
| Premium | $4.65 | $8.42 | $16.85 |
| Diesel | $5.30 | $9.60 | $19.20 |
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 Missouri · Apr 24, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.