How far is Johnston, IA from Iowa City, IA?
The driving distance from Johnston, IA to Iowa City, IA is about 116.1 miles (186.9 km), with a travel time of about 01h 53m by car.
- The straight-line flight distance is about 111.8 miles (180 km).
- For a round trip, plan for roughly 03h 46m 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 01h 53m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Poweshiek County, Iowa, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Johnston and Iowa City.
Turn-by-Turn Driving Directions
Step-by-step road directions between Johnston and Iowa City.
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1
Start on Merle Hay Road
1.5 mi · 3 min · Merle Hay Road
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2
Turn left onto I-35 north, I-80 east
1746 ft · 43 sec
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3
Merge slight left
4 mi · 5 min
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4
Continue straight
1.2 km · 51 sec
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5
Continue straight
3105 ft · 41 sec
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6
Keep slight left
106.9 mi · 1 hr 56 min
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7
Take the exit slight right toward Downtown
2061 ft · 53 sec
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8
Turn right onto North Dubuque Street
1.5 km · 3 min · North Dubuque Street
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9
Turn left onto Kimball Road
145 m · 21 sec · Kimball Road
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10
Keep slight right to continue on North Gilbert Street
1.3 km · 3 min · North Gilbert Street
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11
Arrive at your destination
0 m · 1 sec · South Gilbert Street
Car Route Details
A richer read on the saved driving route between Johnston and Iowa City.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I-35 north
Keep slight left
107 mi · 01h 56m
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.
Partly Sunny leaving Johnston and Chance Rain Showers near Iowa City.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Johnston to Iowa City?
The road trip is about 116.1 miles (186.9 km) and usually takes 01h 53m 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?
Malcom is a useful midpoint, sitting about 58 miles from Johnston and 58.2 miles from Iowa City.
How much longer is the road route than the straight-line distance?
The direct path is about 111.8 miles (180 km), while the road route adds roughly 4.3 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 2:44 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.46 one way or $30.92 round trip. Estimated CO2 is about 36.4 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Johnston and Chance Rain Showers near Iowa City.
Stop Ideas Near Malcom
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Malcom.
Ottumwa station
Mount Pleasant
Flight Path Map
This map shows the direct air route between Johnston and Iowa City. Straight-line distance: 111.88 mi (180.05 km).
#1 Johnston
City in Iowa, United States
| Population | 23,092 |
| Coordinates | 41.6730400, -93.6977200 |
| Altitude | 253 |
| Country | United States |
#2 Iowa City
The most populous city in Johnson County, Iowa.
| Population | 75,130 |
| Coordinates | 41.6611300, -91.5301700 |
| Altitude | 204 |
| Country | United States |
End: South Gilbert Street (-91.530165, 41.661126)
Estimated Travel Time
Distance: 187 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 52m |
| 40 mph (64.37 km/h) | 02h 54m |
| 50 mph (80.47 km/h) | 02h 19m |
| 60 mph (96.56 km/h) | 01h 56m |
| 70 mph (112.65 km/h) | 01h 39m |
| 80 mph (129 km/h) | 01h 26m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $15.46 | $30.92 |
| Mid-grade | $4.25 | $17.44 | $34.87 |
| Premium | $4.65 | $19.08 | $38.16 |
| Diesel | $5.30 | $21.75 | $43.49 |
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 Iowa · May 07, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.