How far is Johnston, IA from Ames, IA?
The driving distance from Johnston, IA to Ames, IA is about 37.2 miles (59.9 km), with a travel time of about 00h 38m by car.
- The straight-line flight distance is about 25.3 miles (40.7 km).
- For a round trip, plan for roughly 01h 17m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM CDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 38m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Polk County, Iowa, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Driving Route Map
The map below follows the saved road route between Johnston and Ames.
Turn-by-Turn Driving Directions
Step-by-step road directions between Johnston and Ames.
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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 right to continue on I 35 North, I 235 South: Minneapolis, Des Moines
27 mi · 30 min
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7
Take the exit slight right toward USDA Veterinary Labs
1758 ft · 45 sec
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8
Turn left onto East 13th Street
2.7 mi · 5 min · East 13th Street
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9
Arrive at your destination
0 m · 1 sec · 13th Street
Car Route Details
A richer read on the saved driving route between Johnston and Ames.
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 right to continue on I 35 North, I 235 South: Minneapolis, Des Moines
27 mi · 00h 30m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Partly Sunny leaving Johnston and Mostly Sunny near Ames.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Johnston to Ames?
The road trip is about 37.2 miles (59.9 km) and usually takes 00h 38m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Alleman is a useful midpoint, sitting about 18.5 miles from Johnston and 18.6 miles from Ames.
How much longer is the road route than the straight-line distance?
The direct path is about 25.3 miles (40.7 km), while the road route adds roughly 11.9 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 7:00 AM to 7:00 PM CDT. If you want a more comfortable same-day return, try to leave by 7:12 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.94 one way or $9.88 round trip. Estimated CO2 is about 11.6 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Johnston and Mostly Sunny near Ames.
Stop Ideas Near Alleman
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 Alleman.
Osceola
Creston
Flight Path Map
This map shows the direct air route between Johnston and Ames. Straight-line distance: 25.31 mi (40.73 km).
#1 Johnston
City in Iowa, United States
| Population | 23,092 |
| Coordinates | 41.6730400, -93.6977200 |
| Altitude | 253 |
| Country | United States |
#2 Ames
The most populous city in Story County, Iowa.
| Population | 67,033 |
| Coordinates | 42.0347100, -93.6199400 |
| Altitude | 287 |
| Country | United States |
End: 13th Street (-93.619967, 42.034517)
Estimated Travel Time
Distance: 60 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 14m |
| 40 mph (64.37 km/h) | 00h 55m |
| 50 mph (80.47 km/h) | 00h 44m |
| 60 mph (96.56 km/h) | 00h 37m |
| 70 mph (112.65 km/h) | 00h 31m |
| 80 mph (129 km/h) | 00h 27m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $4.94 | $9.88 |
| Mid-grade | $4.25 | $5.57 | $11.14 |
| Premium | $4.65 | $6.10 | $12.19 |
| Diesel | $5.30 | $6.95 | $13.90 |
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.