Trip from Rolla, MO to O'Fallon, MO

Drive Time

2h 7m

Distance

100.7 mi

162 km

Drive Score

9/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$15

one way

EV Charging

station data

Best Time to Leave

Save up to 27 min

4 AM

1h 58m ★

6 AM

2h 7m

8 AM

2h 25m

10 AM

2h 14m

12 PM

2h 12m

3 PM

2h 15m

5 PM

2h 24m

8 PM

2h 2m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Best Time Drive vs Fly

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Rolla, MO

Nadezhda Moryak

O'Fallon, MO

Valeria Boltneva

Trip Overview

The drive from Rolla, MO to O'Fallon, MO covers 100.7 miles and takes about 2h 7m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.

The route leans on I 44, Manchester Road, MO K for much of the mileage, and the overall profile is highway-focused drive. The longest uninterrupted segment is about 66.3 miles on I 44. At current regular gas prices, budget about $15.30 one way before food or hotel costs.

Trip Pace

Same-day drive is realistic

A same-day return is realistic if you keep stops short.

Break Rhythm

0 planned breaks

A short stop every 2 to 3 hours is enough for this drive.

Midpoint

50.3 miles from Rolla, MO

A natural place for your longest stop of the day , about 55m into the drive .

Drive Character

This is a 2h 7m highway drive covering 100.7 miles, with most of the trip on I 44 and Manchester Road. The longest continuous stretch is about 66.3 miles on I 44.

Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.

There are about 28 navigation steps in the underlying route data, so the final approach matters more than the middle miles.

I 44 is the longest continuous segment at about 66.3 miles.

Elevation Profile

Mostly flat terrain

1,172 ft 629 ft

Total Climb

273 ft

Total Descent

670 ft

Highest Point

1,172 ft

~4.2 mi in

Elevation Range

543 ft

How Hard Is This Drive?

This is a straightforward highway drive that stays mostly on I 44 and Manchester Road. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes early in the drive near North Pine Street.

Route Complexity 7/10

Demanding - plan breaks and stay ahead of the key maneuvers

This is a demanding drive. With 16 significant decision points across 100.7 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.

Where does it get tricky?

The main spots that need attention: near the start (North Pine Street): Lane positioning matters here; at 0.6 miles (I 44 Business; US Historic 66; US 63 / North Bishop Avenue): Lane positioning matters here; at 0.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.

Critical Maneuvers

5 of 16 key points

These are the spots where you need to pay the most attention. Preview them before you drive.

0 mi into trip | ~0m in | North Pine Street

Turn right onto North Pine Street

Lane positioning matters here

Use the right lane.

0.6 mi into trip | ~2m in | I 44 Business; US Historic 66; US 63 / North Bishop Avenue

Turn right onto I 44 Business; US Historic 66; US 63 / North Bishop Avenue

Lane positioning matters here

Use the straight / right lanes.

0.8 mi into trip | ~2m in

Take the exit toward I 44 East: Saint Louis

Exit ramp - move to the correct lane early. Lane positioning matters here

Use the straight / slight right lanes. Toward I 44 East: Saint Louis

67.4 mi into trip | ~1h 14m in

Take the exit toward I 44 Business, MO 100 East: Gray Summit

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 253 Toward I 44 Business, MO 100 East: Gray Summit

93.2 mi into trip | ~1h 53m in

Take the exit toward MO K: O'Fallon

Exit ramp - move to the correct lane early. Lane positioning matters here

Use the straight / slight right lanes. Exit 9 Toward MO K: O'Fallon

Towns Along This Route

On the drive from Rolla, MO to O'Fallon, MO, road signs begin pointing toward Mo K: O'fallon along the way.

Mo K: O'fallon

93.2 mi in | ~1h 53m

Main Roads

Road	Distance	Duration
I 44	66.3 mi	1h 11m
Manchester Road	13.4 mi	18m
MO K	6.3 mi	11m
MO 109	4.9 mi	7m
Avenue of the Saints	3.1 mi	3m
South Eatherton Road	2.4 mi	4m
Olive Street Road	0.9 mi	1m
Chesterfield Airport Road	0.7 mi	1m

Longest stretch: I 44 — 66.3 mi, about 1h 11m

Turn-by-Turn Driving Directions

Step-by-step road directions between Rolla, MO and O'Fallon, MO.

Start on MO BB

88 ft · 7 sec · West 10th Street

Turn right onto North Pine Street

0.6 mi · 1 min · North Pine Street

Use the right lane.

Turn right onto I 44 Business; US Historic 66; US 63

0.3 mi · 37 sec · North Bishop Avenue

Use the straight / right lanes.

Take the exit

0.2 mi · 23 sec

Toward I 44 East: Saint Louis Use the straight / slight right lanes.

Merge onto I 44

66 mi · 1 hr 11 min · I 44

Take the exit

0.2 mi · 27 sec

Exit 253 Toward I 44 Business, MO 100 East: Gray Summit Use the slight right lane.

Turn left onto MO 100

13 mi · 18 min · Manchester Road

Use the straight lane.

Take the exit

0.2 mi · 30 sec

Toward MO 109

Enter roundabout onto MO 109

224 ft · 4 sec · MO 109

Continue on MO 109

515 ft · 10 sec · MO 109

Enter roundabout onto MO 109

98 ft · 1 sec · MO 109

Continue on MO 109

0.4 mi · 45 sec · MO 109

Enter roundabout onto MO 109

94 ft · 2 sec · MO 109

Continue on MO 109

4.3 mi · 6 min · MO 109

Enter roundabout onto South Eatherton Road

94 ft · 1 sec · South Eatherton Road

Continue on South Eatherton Road

2.4 mi · 4 min · South Eatherton Road

Continue on Olive Street Road

0.9 mi · 1 min · Olive Street Road

Take the ramp onto Chesterfield Airport Road

0.7 mi · 1 min · Chesterfield Airport Road

Merge onto I 64; US 40; US 61

3.1 mi · 3 min · Avenue of the Saints

Use the straight lane.

Take the exit

327 ft · 6 sec

Exit 9 Toward MO K: O'Fallon Use the straight / slight right lanes.

Merge onto North Outer Road

0.3 mi · 31 sec · North Outer Road

Continue on North Outer Road

0.2 mi · 17 sec · North Outer Road

Turn right onto MO K

3.3 mi · 5 min · MO K

Continue on MO K

1.5 mi · 2 min · MO K

Use the right lane.

Continue on MO K

1.6 mi · 3 min · MO K

Use the right lane.

Continue on South Main Street

0.6 mi · 1 min · South Main Street

Turn right

25 ft · 1 sec

Arrive at destination

Trip Plan

Morning Departure

Leave by 9 AM and you'll arrive before lunch.

Evening Departure

Even a 4 PM departure gets you there before dark in summer.

You can normally do this drive in one day.

You may only need one short stretch break if traffic stays light.

The halfway point lands around 50.3 miles from Rolla, MO, or about 55m into the drive.

The longest continuous stretch on this route runs about 66.3 miles.

This is a comfortable same-day trip.

Departure

Before you leave

Start with fuel, water, and navigation already sorted so the first hour feels easy.

First stop

Around 80 miles or 1h 32m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 50.3 miles or 55m in

This is the best place for your longest stop, a real meal, and a full fuel check.

Final approach

Final hour starts around 1h 36m

Traffic, exits, and arrival timing usually matter more near O'Fallon, MO than in the middle of the route.

Before You Leave

Open the route before leaving Rolla, MO so your first major turns are already loaded.

Leave with enough water and a charging cable within reach, not packed away.

Check your fuel range against the first long segment, especially if you are starting outside city service areas.

Day 1

Settle into the route from Rolla, MO

This is one driving day of about 100.7 miles and 2h 7m.

Your first comfortable stop window is around 80 miles from Rolla, MO.

This route can stay practical as a one-day drive if traffic stays reasonable.

You may only need one short stretch stop if conditions stay smooth.

The longest stretch is on I 44 for about 66.3 miles.

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

Halfway Point

Midpoint

About 50.3 mi from Rolla, MO · 55m into the drive

Mid-route town

Meal stop

Cahokia, IL

50 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.

Pacing Suggestions

Cahokia, IL

Fuel and coffee

A short stop after about 80 miles helps settle the day before fatigue starts building.

Cahokia, IL

Meal break

The midpoint is around 50.3 miles from Rolla, MO, which is a good place for a longer meal and fuel stop.

Before the longest stretch

Fuel check

Top up before I 44 if your tank is already low. That segment runs about 66.3 miles.

Arriving in O'Fallon, MO

The final approach into O'Fallon, MO usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.

Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around O'Fallon, MO.

These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.

Fuel & Cost

Regular Gas

$15.30 one way

$30.59 round trip

$3.86/gal 25.4 MPG avg 35 kg CO₂

Fuel Type	$/gal	One Way	Round Trip
midgrade	$4.25	$16.86	$33.72
premium	$4.80	$19.01	$38.02
diesel	$5.64	$22.37	$44.74

No toll roads detected on this route.

Estimated Trip Cost (one way, 1 person)

Fuel

$15

Meals

$25–$50

Total

$40–$65

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 35.2 kg one way. Prices: EIA weekly data, 2026-04-06.

Driving Electric?

About $11 in charging · 0 stops · 66% less CO₂

Vehicle Type	kWh	DC Fast	Home Charge
Average EV	30.2	$10.57	$4.83
Efficient EV	25.2	$8.81	$4.03
EV Truck/SUV	40.3	$14.10	$6.44

Gas CO2

35 kg

EV CO2

12 kg (66% 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 data refreshed 11 hours ago

Origin

Rolla, MO

Afternoon in Rolla on Sunday

Local time

3:36 PM

CDT

Current temp

63°F

Mostly Cloudy

S 10 mph 5% chance Live forecast

Special Weather Statement

Special Weather Statement issued April 12 at 12:21AM CDT by NWS Paducah KY

Flood Warning

Flood Warning issued April 11 at 9:46PM CDT until April 18 at 1:00PM CDT by NWS St Louis MO

Destination

O'Fallon, MO

Afternoon in O'Fallon on Sunday

Local time

3:36 PM

CDT

Current temp

53°F

Unavailable

Live forecast

Seasonal Notes

Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.

Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.

Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.

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

10 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

2h 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.

Frequently Asked Questions

The drive from Rolla, MO to O'Fallon, MO covers 100.7 miles and takes about 2h 7m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.

The main roads are I 44, Manchester Road, MO K. Most of the drive stays on highways, so watch for ramps and exits.

This is a comfortable same-day trip.

The midpoint is about 50.3 miles from Rolla, MO. Look for rest areas, gas stations, or food options near the halfway mark.

At current regular gas prices, expect to spend about $15.30 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.

Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.

On the drive from Rolla, MO to O'Fallon, MO, road signs begin pointing toward Mo K: O'fallon along the way.

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Trip from Rolla, MO to O'Fallon, MO

Best Time to Leave

Trip Overview

Drive Character

Elevation Profile

How Hard Is This Drive?

Critical Maneuvers

Towns Along This Route

Main Roads

Turn-by-Turn Driving Directions

Trip Plan

Before You Leave

Where to Stop

Pacing Suggestions

Arriving in O'Fallon, MO

Fuel & Cost

Travel Intel

Rolla, MO

O'Fallon, MO

Same local time

10 degrees cooler at arrival

2h 7m on the road

Frequently Asked Questions

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