Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Sep 6, 2026 · Editorial standards
Drive Time
50m
Distance
38.2 mi
62 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$6
one way
EV Charging
Unknown
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Florissant, MO
Wikimedia Commons
Imperial, MO
Wikimedia Commons
The drive from Florissant, MO to Imperial, MO covers 38.2 miles and takes about 50m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Rosemary Straub Davison Highway, Police Officer Steven Jarvis Memorial Highway, Officer Thomas G. Smith, Jr. Memorial Highway for much of the mileage, and the overall profile is mostly surface roads. The longest uninterrupted segment is about 24.3 miles on Rosemary Straub Davison Highway. At current regular gas prices, budget about $5.92 one way before food or hotel costs.
| Road | Distance | Duration |
|---|---|---|
| Rosemary Straub Davison Highway | 24.3 mi | 30m |
| Police Officer Steven Jarvis Memorial Highway | 6.1 mi | 6m |
| Officer Thomas G. Smith, Jr. Memorial Highway | 1.8 mi | 2m |
| Lindbergh Boulevard | 1.7 mi | 3m |
| Rosa Parks Highway | 1.5 mi | 1m |
| Washington Street | 1 mi | 1m |
| Imperial Main Street | 0.2 mi | <1m |
| White Street | <0.1 mi | <1m |
Step-by-step road directions between Florissant, MO and Imperial, MO.
Start on North New Florissant Road
Turn right onto Washington Street
Turn left onto US 67
Take the ramp
Merge onto I 270
Take the exit
Keep slight right at fork
Merge onto I 55
Continue on I 55
Continue on I 55
Take the exit
Turn left
Turn left onto Imperial Main Street
Turn left onto Old State Road
Turn right onto White Street
Arrive at destination
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
19 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 38 miles helps settle the day before fatigue starts building.
The midpoint is around 19.1 miles from Florissant, MO, which is a good place for a longer meal and fuel stop.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
5 decision points cluster between mile 3.1 and 37.9 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
Merge onto I 270 / Rosemary Straub Davison Highway
Merge point - match speed before joining. Lane positioning matters here
Take the exit toward I 55, US 61, US 67: Saint Louis, Memphis, Lemay Ferry Road
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Keep slight right at fork toward I 55 South: Memphis
Highway fork - watch signs carefully
Take the exit toward Imperial Main Street
Exit ramp - move to the correct lane early
Turn left toward Imperial Main Street, Imperial, Kimmswick
Multiple destination signs - pick the right one
Regular Gas
$5.92 one way
$11.85 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.32 | $6.49 | $12.99 |
| premium | $4.93 | $7.41 | $14.82 |
| diesel | $5.60 | $8.42 | $16.84 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$6
Estimated CO2 emission: 13.4 kg one way. Prices: EIA weekly data, 2026-08-31.
Driving Electric?
About $4 in charging · 0 stops · 69% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 11.5 | 0 | $4.01 | $1.83 |
| Efficient EV | 9.6 | 0 | $3.34 | $1.53 |
| EV Truck/SUV | 15.3 | 0 | $5.35 | $2.44 |
Gas CO2
13 kg
EV CO2
4 kg (69% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Current conditions at both ends of the drive.
Origin
Late night in Florissant on Sunday
Local time
1:15 AM
CDT
Current temp
68°F
Partly Cloudy
Destination
Late night in Imperial on Sunday
Local time
1:15 AM
CDT
Current temp
65°F
Partly Cloudy
Time zone
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
38.2 mi in 50m across surface roads — expect steady turns and local traffic rather than long highway runs.
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 3.1 miles in near I 270 / Rosemary Straub Davison Highway.
Focused - busy navigation packed into a short drive
Balances navigation complexity with total wheel time.
This is a short but busy drive. With 11 decision points packed into just 38.2 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 50m.
Where does it get tricky?
The main spots that need attention: at 3.1 miles (I 270 / Rosemary Straub Davison Highway): Merge point - match speed before joining. Lane positioning matters here; at 27.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 27.7 miles: Highway fork - watch signs carefully.
Mostly flat terrain
Total Climb
315 ft
Total Descent
455 ft
Highest Point
655 ft
~16.4 mi in
Elevation Range
216 ft
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Florissant, MO to Imperial, MO, road signs begin pointing toward Memphis along the way.
Memphis
Founded 1785
St. Louis Area is the region around St. Louis, Missouri. It borders St. Louis Metro East (Illinois) along the Mississippi River. Within Missouri, it borders Southeast Missouri, Central Missouri, and Northeast Missouri.
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Weekend Trip
Doable as a same-day drive at 50m. Total distance: 38.2 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
50m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
Scenic Drive
Mostly surface roads route profile with national parks nearby.
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, USGS 3DEP for elevation, and NPS for national parks. See our methodology for refresh cadence and limitations.
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