This 186.2-mile journey from Garner to Iowa City is a manageable one-day trip, estimated to take about 3 hours and 43 minutes. With a fuel cost around $29, it's an economical choice for exploring more of the Midwest. The route primarily utilizes US 18 and the Avenue of the Saints, offering a mixed driving experience. You'll find a good balance of highway travel and potentially more local road sections as you make your way across Iowa. Given the duration and distance, it's well-suited for a single day's drive without feeling overly rushed.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
93.1 miles from Garner, IA
A natural place for your longest stop of the day
, about 1h 51m into the drive
.
Main Roads
Road
Distance
Duration
US 18
94.7 mi
1h 53m
Avenue of the Saints
67.3 mi
1h 14m
Leo P Rooff Expressway
6.7 mi
8m
I 380
6.5 mi
7m
I 80
4.2 mi
4m
Washington Street
2.4 mi
3m
North Dubuque Street
1 mi
2m
North Gilbert Street
0.8 mi
2m
Longest stretch:
US 18
— 94.7 mi, about 1h 53m
Turn-by-Turn Driving Directions
Step-by-step road directions between Garner, IA and Iowa City, IA.
1
Start on East 3rd Street
69 ft·5 sec·East 3rd Street
2
Turn right onto State Street
0.2 mi·38 sec·State Street
3
Turn right onto US 18
13 mi·18 min·US 18
4
Take the ramp onto US 18
0.3 mi·37 sec·US 18
Toward I 35 south, US 18 east, IA 27 south: Des Moines
5
Merge onto I 35; US 18; IA 27
2.6 mi·2 min·Avenue of the Saints
6
Take the exit onto US 18; IA 27
0.4 mi·26 sec·US 18; IA 27
Toward US 18 East, IA 27 South: Mason City, Charles City
7
Turn slight right onto US 18; IA 27
81 mi·1 hr 34 min·US 18; IA 27
Toward US 18 East, IA 27 South: Mason City, Charles City
8
Take the exit
317 ft·7 sec
Toward US 218 south: Waterloo
9
Continue on US 218
0.3 mi·39 sec·US 218
Toward US 218 south: Waterloo
10
Merge onto US 218
6.7 mi·8 min·Leo P Rooff Expressway
11
Continue on US 218
2.4 mi·3 min·Washington Street
12
Keep slight right at fork onto I 380
6.5 mi·7 min·I 380
Toward I-380 south, US 20, IA 27: Cedar Rapids, Dubuque, Cedar Falls
13
Keep slight right at fork onto I 380; IA 27
65 mi·1 hr 11 min·Avenue of the Saints
Toward I 380 South, IA 27 South: Cedar Rapids
14
Take the exit
0.3 mi·33 sec
Toward I 80
15
Keep slight left at fork
1.2 mi·2 min
Toward I 80 East: Davenport
16
Merge onto I 80
4.2 mi·4 min·I 80
17
Take the exit
0.4 mi·52 sec
Toward Downtown
18
Turn right onto North Dubuque Street
1.0 mi·2 min·North Dubuque Street
19
Turn left onto Kimball Road
477 ft·21 sec·Kimball Road
20
Keep slight right at fork onto North Gilbert Street
0.8 mi·2 min·North Gilbert Street
21
Arrive at destination
South Gilbert Street
Trip Plan
For this 186.2-mile drive, leaving in the morning will give you plenty of daylight and flexibility. Plan for one stop to break up the 3-hour, 43-minute travel time, perhaps around the halfway point. Since this is a single-day trip, you have the advantage of not needing to rush. Keep an eye on your fuel, especially during the longest stretch of 94.7 miles on US 18, and consider topping off before entering that segment if your tank is low. The estimated fuel cost is approximately $29.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 93.1 miles from Garner, IA, or about 1h 51m into the drive.
The longest continuous stretch on this route runs about 94.7 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 41 miles or 51m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 93.1 miles or 1h 51m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h
Traffic, exits, and arrival timing usually matter more near Iowa City, IA than in the middle of the route.
Before You Leave
+
Open the route before leaving Garner, IA 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 Garner, IA
This is one driving day of about 186.2 miles and 3h 43m.
Your first comfortable stop window is around 41 miles from Garner, IA.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on US 18 for about 94.7 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 17
5 decision points cluster between mile 0 and 113.6 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0 mi into trip|~0m in|State Street
Turn right onto State Street
Navigation decision point
6
13 mi into trip|~18m in|US 18
Take the ramp onto US 18 toward I 35 south, US 18 east, IA 27 south: Des Moines
Multiple destination signs - pick the right one
Toward I 35 south, US 18 east, IA 27 south: Des...
5
15.9 mi into trip|~22m in|US 18; IA 27
Take the exit onto US 18; IA 27 toward US 18 East, IA 27 South: Mason City, Charles City
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward US 18 East, IA 27 South: Mason City, Cha...
6
107 mi into trip|~2h 9m in|I 380
Keep slight right at fork onto I 380 toward I-380 south, US 20, IA 27: Cedar Rapids, Dubuque, Cedar Falls
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward I-380 south, US 20, IA 27: Cedar Rapids,...
6
113.6 mi into trip|~2h 17m in|I 380; IA 27 / Avenue of the Saints
Keep slight right at fork onto I 380; IA 27 / Avenue of the Saints toward I 380 South, IA 27 South: Cedar Rapids
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward I 380 South, IA 27 South: Cedar Rapids
Fuel & Cost
Regular Gas
$29.11 one way
$58.22 round trip
$3.97/gal25.4 MPG avg65 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.36
$31.96
$63.92
premium
$4.89
$35.83
$71.67
diesel
$5.61
$41.11
$82.22
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$29
Meals
$25–$50
Total
$54–$79
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 65.1 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $20 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
55.9
0
$19.55
$8.94
Efficient EV
46.6
0
$16.29
$7.45
EV Truck/SUV
74.5
0
$26.07
$11.92
Gas CO2
65 kg
EV CO2
22 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 as of Apr 16, 2026
Origin
Garner, IA
Late night
in Garner on Tuesday
Local time
5:46 AM
CDT
Current temp
71°F
Unavailable
Live forecast
Destination
Iowa City, IA
Late night
in Iowa City on Tuesday
Local time
5:46 AM
CDT
Current temp
65°F
Unavailable
Live forecast
59°F
Waterloo, IA
93 mi in
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
6 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
3h 43m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
Expect a drive that's about 60% highway, meaning you'll encounter some faster stretches on major roads like US 18 and the Avenue of the Saints. The longest continuous segment without a major change in road type spans 94.7 miles on US 18, so be prepared for extended periods on this particular highway. This route offers a mixed drive profile, suggesting a blend of efficient highway cruising and potentially more varied driving as you approach your destination. It’s not a monotonous interstate grind, but rather a journey with different road surfaces and speeds.
60% highway — fuel and pacing are the main things to plan.
21 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 94.7 mi on US 18.
How Hard Is This Drive?
7/10
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes early in the drive near State Street.
Driving Effort7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 17 significant decision points across 186.2 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 (State Street): Navigation decision point; at 13 miles (US 18): Multiple destination signs - pick the right one; at 15.9 miles (US 18; IA 27): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Garner, IA and Iowa City, IA, road signs point toward Charles City, Dubuque and Cedar Falls.
Hip and urban, Iowa City is a prominent college town primarily known as the home of the University of Iowa. Along with its adjacent suburb of Coralville, just to the west. Iowa City sits at the center of a metro area home to 171,000 people (2020) in the I-380 Corridor region of Eastern Iowa.
Doable as a same-day drive at 3h 43m. Total distance: 186.2 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 43m drive, comfortable solo distance.
Frequently Asked Questions
The longest stretch is about 94.7 miles on US 18. The full list of main roads is in the Roads section above.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
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 Iowa City, IA before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: near the start (State Street): Navigation decision point; at 13 miles (US 18): Multiple destination signs - pick the right one; at 15.9 miles (US 18; IA 27): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
Possible but tiring. At 3.7 hours each way, an in-and-out day trip would put you behind the wheel for 7.4 hours — manageable with a long break at Iowa City, IA, but most travelers stay overnight.
