If you are planning a transit across Missouri, the 52.6-mile trek from Crystal City to Saint Peters is a straightforward connection through the Midwest. You can expect to spend about 1 hour and 7 minutes behind the wheel, making this a perfect candidate for a single-day trip. With a fuel budget of approximately $8, the drive is quite economical for a solo traveler or a small group. Since the route relies heavily on major infrastructure, it functions primarily as a functional commute rather than a leisurely sightseeing tour. You won't need to worry about overnight lodging, as the duration is easily manageable in one sitting. It serves as an efficient link between these two Missouri communities.
Main Roads
Road
Distance
Duration
I 270
18.1 mi
22m
I 55
16.2 mi
17m
I 70
10.5 mi
13m
North Truman Boulevard
1.5 mi
2m
Rosa Parks Highway
1.3 mi
1m
Commercial Boulevard
0.6 mi
1m
Jefferson Avenue
0.5 mi
1m
McNutt Street
0.5 mi
<1m
Longest stretch:
I 270
— 18.1 mi, about 22m
Turn-by-Turn Driving Directions
Step-by-step road directions between Crystal City, MO and Saint Peters, MO.
1
Start on North Taylor Avenue
20 ft·2 sec·North Taylor Avenue
2
Turn right onto 2nd Avenue
368 ft·18 sec·2nd Avenue
3
Turn right onto Jefferson Avenue
0.5 mi·1 min·Jefferson Avenue
4
Turn left onto 8th Street
0.2 mi·27 sec·8th Street
5
Turn right onto I 55 Business; US 61; US 67
1.5 mi·2 min·North Truman Boulevard
6
Continue on I 55 Business; US 61; US 67
0.6 mi·1 min·Commercial Boulevard
7
Turn left onto I 55 Business
0.5 mi·58 sec·McNutt Street
Use the left lane.
8
Take the ramp
0.2 mi·30 sec
Toward I 55 North: Saint LouisUse the right lane.
9
Merge onto I 55
16 mi·17 min·I 55
10
Continue on I 55
1.3 mi·1 min·Rosa Parks Highway
11
Take the exit
0.2 mi·27 sec
Exit 196Toward I 270 West, I 255 East: Kansas City, ChicagoUse the slight right lane.
12
Keep slight left at fork
388 ft·8 sec
Toward I 270 West: Kansas CityUse the slight left lane.
13
Continue on this road
0.7 mi·1 min·this road
Exit 196Toward I 270 West
14
Merge onto I 270
18 mi·22 min·I 270
Use the straight lane.
15
Take the exit
1.0 mi·1 min
Exit 20AToward I 70: Kansas City, Saint Louis, Saint Louis Lambert International AirportUse the slight right lane.
16
Keep slight left at fork
0.1 mi·11 sec
Toward I 70 West: Kansas CityUse the slight left lane.
17
Continue on this road
0.6 mi·57 sec·this road
Exit 20BToward I 70 West: Kansas City
18
Merge onto I 70
11 mi·13 min·I 70
Use the straight / slight right lanes.
19
Arrive at destination
I 70
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
The midpoint is around 26.3 miles from Crystal City, 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.
Heads-up: tricky spots
5 of 13
5 decision points cluster between mile 2.9 and 41.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
2.9 mi into trip|~6m in|I 55 Business / McNutt Street
Turn left onto I 55 Business / McNutt Street
Lane positioning matters here
Use the left lane.
8
21.1 mi into trip|~26m in
Take the exit toward I 270 West, I 255 East: Kansas City, Chicago
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 196
Toward I 270 West, I 255 East: Kansas City, Chi...
8
21.3 mi into trip|~27m in
Keep slight left at fork toward I 270 West: Kansas City
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left lane.
Toward I 270 West: Kansas City
8
40.3 mi into trip|~51m in
Take the exit toward I 70: Kansas City, Saint Louis, Saint Louis Lambert International Airport
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 20A
Toward I 70: Kansas City, Saint Louis, Saint Lo...
7
41.3 mi into trip|~52m in
Keep slight left at fork toward I 70 West: Kansas City
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left lane.
Toward I 70 West: Kansas City
Fuel & Cost
Regular Gas
$8.22 one way
$16.45 round trip
$3.97/gal25.4 MPG avg18 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.36
$9.03
$18.06
premium
$4.89
$10.12
$20.24
diesel
$5.61
$11.61
$23.23
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$8
Estimated CO2 emission: 18.4 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $6 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
15.8
0
$5.52
$2.52
Efficient EV
13.2
0
$4.60
$2.10
EV Truck/SUV
21
0
$7.36
$3.37
Gas CO2
18 kg
EV CO2
6 kg (67% 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.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 11, 2026
Origin
Crystal City, MO
Night
in Crystal City on Saturday
Local time
11:26 PM
CDT
Current temp
75°F
Slight Chance Showers And Thunderstorms
SE 7 mph21% chanceLive forecast
Flood Warning
Flood Warning issued April 11 at 11:35AM CDT by NWS St Louis MO
Flood Warning
Flood Warning issued April 11 at 11:35AM CDT by NWS St Louis MO
Destination
Saint Peters, MO
Night
in Saint Peters on Saturday
Local time
11:26 PM
CDT
Current temp
54°F
Unavailable
Live forecast
64°F
Oakville, MO
26 mi in
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
21 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
1h 7m on the road
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.
More Details
What kind of drive is this?
This drive is a quintessential highway-focused experience, with 85% of your time spent on fast-moving interstates. You will navigate a combination of I-55, I-270, and I-70 to reach your destination. Expect a steady, predictable pace, highlighted by a longest uninterrupted stretch of 18.1 miles while cruising along I-270. Because the route prioritizes speed and efficiency, it lacks the technical curves or stop-and-go nature of local backroads. You should be prepared for a high-intensity, interstate-heavy environment that demands your full attention to traffic flow.
85% highway — fuel and pacing are the main things to plan.
19 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 18.1 mi on I 270.
How Hard Is This Drive?
9/10
This is a straightforward highway drive that stays mostly on I 270 and I 55. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 2.9 miles in near I 55 Business / McNutt Street.
Driving Effort9/10
Demanding - stay alert through the decision-heavy sections
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 52.6 miles you will encounter 13 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 2.9 miles (I 55 Business / McNutt Street): Lane positioning matters here; at 21.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 21.3 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
Mostly flat terrain
650 ft402 ft
Total Climb
740 ft
Total Descent
740 ft
Highest Point
650 ft
~32.9 mi in
Elevation Range
248 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Crystal City, MO and Saint Peters, MO, road signs point toward Chicago, Saint Louis and Saint Louis Lambert International Airport.
Chicago
21.1 mi in|~26m
Saint Louis
40.3 mi in|~51m
Saint Louis Lambert International Airport
40.3 mi in|~51m
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 1h 7m. Total distance: 52.6 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 7m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (85%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 18.1 miles on I 270. The full list of main roads is in the Roads section above.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Saint Peters, MO before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: at 2.9 miles (I 55 Business / McNutt Street): Lane positioning matters here; at 21.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 21.3 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Yes — Gateway Arch National Park and Ste. Geneviève National Historical Park. See the National Parks section for detour distances and tips on detours.
Yes. A round trip is manageable in a single day if you plan a break at Saint Peters, MO before heading back.
