How far is Peoria, IL from Marengo, IL?
The driving distance from Peoria, IL to Marengo, IL is about 153.6 miles (247.2 km), with a travel time of about 03h 03m by car.
- The straight-line flight distance is about 118.8 miles (191.2 km).
- For a round trip, plan for roughly 06h 07m 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 03m.
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 LaSalle County, Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Peoria and Marengo.
Turn-by-Turn Driving Directions
Step-by-step road directions between Peoria and Marengo.
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1
Start on Northeast Jefferson Avenue
26 m · 9 sec · Northeast Jefferson Avenue
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2
Turn left onto Hamilton Boulevard
142 m · 20 sec · Hamilton Boulevard
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3
Turn left onto Northeast Adams Street
2.6 mi · 5 min · Northeast Adams Street
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4
Continue on Northeast Adams Street
1568 ft · 41 sec · Northeast Adams Street
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5
Continue on North Galena Road
7.1 mi · 10 min · North Galena Road
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6
Keep slight left
98 m · 4 sec
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7
Keep slight right
45 m · 2 sec
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8
Continue on North Galena Road
2326 ft · 36 sec · North Galena Road
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9
Continue on North State Route 29
6.1 mi · 8 min · North State Route 29
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10
Continue on South 4th Street
9.1 mi · 11 min · South 4th Street
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11
Continue on Railroad Street
1.1 mi · 1 min · Railroad Street
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12
Continue on County Road 1400 East
17.8 mi · 20 min · County Road 1400 East
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13
Merge slight right
8.9 mi · 10 min
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14
Keep slight right to continue on I 80 East: Joliet
2040 ft · 44 sec
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15
Merge slight left
17.4 mi · 19 min
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16
Take the exit slight right toward I 39 North, US 51 North: Rockford
2555 ft · 1 min
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17
Merge slight left
60.7 mi · 1 hr 5 min
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18
Merge slight left
2.2 mi · 3 min
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19
Take the exit slight right toward US 20 East: Belvedere
1251 ft · 31 sec · U.S. Grant Memorial Highway
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20
Keep slight right to continue on U.S. Grant Memorial Highway
13.5 mi · 20 min · U.S. Grant Memorial Highway
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21
Continue on West Grant Highway
5 mi · 8 min · West Grant Highway
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22
Turn left onto South State Street
33 m · 2 sec · South State Street
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23
Arrive at your destination
0 m · 1 sec · South State Street
Car Route Details
A richer read on the saved driving route between Peoria and Marengo.
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 39 North
Merge slight left
60.7 mi · 01h 05m
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.
Mostly Sunny leaving Peoria and Sunny near Marengo.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Peoria to Marengo?
The road trip is about 153.6 miles (247.2 km) and usually takes 03h 03m 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?
Troy Grove is a useful midpoint, sitting about 76.8 miles from Peoria and 76.8 miles from Marengo.
How much longer is the road route than the straight-line distance?
The direct path is about 118.8 miles (191.2 km), while the road route adds roughly 34.8 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 10:52 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $20.44 one way or $40.88 round trip. Estimated CO2 is about 48.2 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Peoria and Sunny near Marengo.
Stop Ideas Near Troy Grove
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 Troy Grove.
Mendota station
Princeton
Plano
Dwight station
Flight Path Map
This map shows the direct air route between Peoria and Marengo. Straight-line distance: 118.82 mi (191.23 km).
#1 Peoria
The third most populous city in Illinois.
| Population | 109,428 |
| Coordinates | 40.6936500, -89.5889900 |
| Altitude | 153 |
| Country | United States |
#2 Marengo
City in McHenry County, Illinois, United States
| Population | 7,377 |
| Coordinates | 42.2486300, -88.6084300 |
| Altitude | 254 |
| Country | United States |
End: Marengo (-88.60843, 42.24863)
Estimated Travel Time
Distance: 247 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 07m |
| 40 mph (64.37 km/h) | 03h 50m |
| 50 mph (80.47 km/h) | 03h 04m |
| 60 mph (96.56 km/h) | 02h 33m |
| 70 mph (112.65 km/h) | 02h 11m |
| 80 mph (129 km/h) | 01h 54m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $20.44 | $40.88 |
| Mid-grade | $4.25 | $23.05 | $46.10 |
| Premium | $4.65 | $25.22 | $50.45 |
| Diesel | $5.30 | $28.75 | $57.50 |
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 Illinois · May 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.