How far is Bloomington, IL from Marengo, IL?
The driving distance from Bloomington, IL to Marengo, IL is about 145.1 miles (233.5 km), with a travel time of about 02h 50m by car.
- The straight-line flight distance is about 123.5 miles (198.8 km).
- For a round trip, plan for roughly 05h 40m 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 02h 50m.
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.
Township in LaSalle County, Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Showers And Thunderstorms then Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Bloomington and Marengo.
Turn-by-Turn Driving Directions
Step-by-step road directions between Bloomington and Marengo.
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1
Start on North East Street
42 m · 6 sec · North East Street
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2
Continue on North Main Street
3.8 mi · 9 min · North Main Street
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3
Take the ramp slight right toward I 55 South: Saint Louis
2316 ft · 59 sec
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4
Keep slight right to continue on I 39 North, US 51 North: Rockford
2374 ft · 41 sec
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5
Continue straight
119.3 mi · 2 hr 8 min
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6
Merge slight left
2.2 mi · 3 min
-
7
Take the exit slight right toward US 20 East: Belvedere
1251 ft · 31 sec · U.S. Grant Memorial Highway
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8
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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9
Continue on West Grant Highway
5 mi · 8 min · West Grant Highway
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10
Turn left onto South State Street
33 m · 2 sec · South State Street
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11
Arrive at your destination
0 m · 1 sec · South State Street
Car Route Details
A richer read on the saved driving route between Bloomington 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
Continue straight
119 mi · 02h 08m
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.
Slight Chance Showers And Thunderstorms then Mostly Sunny leaving Bloomington and Sunny near Marengo.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Bloomington to Marengo?
The road trip is about 145.1 miles (233.5 km) and usually takes 02h 50m 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?
Troy Grove is a useful midpoint, sitting about 72.6 miles from Bloomington and 72.5 miles from Marengo.
How much longer is the road route than the straight-line distance?
The direct path is about 123.5 miles (198.8 km), while the road route adds roughly 21.6 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 12:50 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $19.31 one way or $38.62 round trip. Estimated CO2 is about 45.5 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Showers And Thunderstorms then Mostly Sunny around Bloomington 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 Bloomington and Marengo. Straight-line distance: 123.53 mi (198.81 km).
#1 Bloomington
The second most populous city in McLean County, Illinois.
| Population | 77,132 |
| Coordinates | 40.4842000, -88.9936900 |
| Altitude | 243 |
| 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: 233 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 50m |
| 40 mph (64.37 km/h) | 03h 37m |
| 50 mph (80.47 km/h) | 02h 54m |
| 60 mph (96.56 km/h) | 02h 25m |
| 70 mph (112.65 km/h) | 02h 04m |
| 80 mph (129 km/h) | 01h 48m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $19.31 | $38.62 |
| Mid-grade | $4.25 | $21.78 | $43.55 |
| Premium | $4.65 | $23.83 | $47.66 |
| Diesel | $5.30 | $27.16 | $54.31 |
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 · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.