How far is Storm Lake, IA from Marion, IA?
The driving distance from Storm Lake, IA to Marion, IA is about 212.8 miles (342.5 km), with a travel time of about 03h 24m by car.
- The straight-line flight distance is about 189.1 miles (304.4 km).
- For a round trip, plan for roughly 06h 48m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 24m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Township in Hardin County, Iowa
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between Storm Lake and Marion.
Turn-by-Turn Driving Directions
Step-by-step road directions between Storm Lake and Marion.
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1
Start on Grand Avenue
942 ft · 40 sec · Grand Avenue
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2
Continue on West Lakeshore Drive
3.1 mi · 7 min · West Lakeshore Drive
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3
Continue on 130th Avenue
10.9 mi · 15 min · 130th Avenue
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4
Continue on US 71
1014 ft · 20 sec · US 71
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5
Take the exit left toward US 20 East: Fort Dodge
1841 ft · 51 sec
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6
Merge slight left
153.3 mi · 2 hr 57 min
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7
Keep slight right to continue on Avenue of the Saints
40.7 mi · 44 min · Avenue of the Saints
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8
Take the exit slight right toward IA 100
1286 ft · 31 sec
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9
Keep slight left
802 ft · 20 sec
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10
Keep slight right to continue on IA 100
1460 ft · 28 sec
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11
Keep slight left to continue on I-380 south, IA 27 south: Iowa City
564 ft · 17 sec
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12
Turn left onto I-380 north, IA 27 north, IA 100 east: Waterloo, Marion
3094 ft · 1 min
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13
Merge slight left onto Collins Road Northeast
1663 ft · 30 sec · Collins Road Northeast
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14
Keep slight right to continue on Collins Road Northeast
1.8 mi · 2 min · Collins Road Northeast
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15
Turn left onto 1st Avenue East
717 ft · 22 sec · 1st Avenue East
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16
Continue on Marion Boulevard
1 km · 1 min · Marion Boulevard
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17
Continue on 7th Avenue
1664 ft · 46 sec · 7th Avenue
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18
Turn left onto 6th Street
96 m · 18 sec · 6th Street
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19
Turn right onto 8th Avenue
1702 ft · 1 min · 8th Avenue
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20
Arrive at your destination
0 m · 1 sec · 8th Avenue
Car Route Details
A richer read on the saved driving route between Storm Lake and Marion.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
US 20 East
Merge slight left
153 mi · 02h 57m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Slight Chance Rain Showers leaving Storm Lake and Chance Showers And Thunderstorms then Showers And Thunderstorms Likely near Marion.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Storm Lake to Marion?
The road trip is about 212.8 miles (342.5 km) and usually takes 03h 24m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Buckeye is a useful midpoint, sitting about 106.6 miles from Storm Lake and 106.2 miles from Marion.
How much longer is the road route than the straight-line distance?
The direct path is about 189.1 miles (304.4 km), while the road route adds roughly 23.7 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 10:12 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $28.32 one way or $56.64 round trip. Estimated CO2 is about 66.7 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers around Storm Lake and Chance Showers And Thunderstorms then Showers And Thunderstorms Likely near Marion.
Flight Path Map
This map shows the direct air route between Storm Lake and Marion. Straight-line distance: 189.17 mi (304.44 km).
#1 Storm Lake
City in Iowa
| Population | 10,438 |
| Coordinates | 42.6410900, -95.2097200 |
| Altitude | 433 |
| Country | United States |
#2 Marion
The county seat of Linn County, Iowa.
| Population | 40,780 |
| Coordinates | 42.0341700, -91.5976800 |
| Altitude | 259 |
| Country | United States |
End: 8th Avenue (-91.59768, 42.03419)
Estimated Travel Time
Distance: 342 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 05m |
| 40 mph (64.37 km/h) | 05h 19m |
| 50 mph (80.47 km/h) | 04h 15m |
| 60 mph (96.56 km/h) | 03h 32m |
| 70 mph (112.65 km/h) | 03h 02m |
| 80 mph (129 km/h) | 02h 39m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $28.32 | $56.64 |
| Mid-grade | $4.25 | $31.94 | $63.88 |
| Premium | $4.65 | $34.95 | $69.90 |
| Diesel | $5.30 | $39.83 | $79.67 |
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 · Apr 16, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.