How far is Rockford, IL from McCullom Lake, IL?
The driving distance from Rockford, IL to McCullom Lake, IL is about 50.2 miles (80.8 km), with a travel time of about 01h 23m by car.
- The straight-line flight distance is about 41.5 miles (66.8 km).
- For a round trip, plan for roughly 02h 47m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CST.
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 23m.
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 McHenry County, Illinois, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Rockford and McCullom Lake.
Turn-by-Turn Driving Directions
Step-by-step road directions between Rockford and McCullom Lake.
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1
Start on West State Street
3.4 mi · 6 min · West State Street
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2
Turn right onto South Alpine Road
1.5 km · 2 min · South Alpine Road
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3
Continue on South Alpine Road
109 m · 14 sec · South Alpine Road
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4
Turn right
26 m · 4 sec
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5
Turn right onto Charles Street
2.8 mi · 5 min · Charles Street
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6
Turn right onto South Mall Drive
118 m · 19 sec · South Mall Drive
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7
Turn left onto Harrison Avenue
1.1 km · 1 min · Harrison Avenue
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8
Continue on U.S. Grant Memorial Highway
13.4 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
4.5 mi · 7 min · South State Street
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11
Turn right onto Kishwaukee Valley Road
7.4 mi · 11 min · Kishwaukee Valley Road
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12
Continue on West Jackson Street
1.5 km · 3 min · West Jackson Street
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13
Turn left onto North Throop Street
924 ft · 30 sec · North Throop Street
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14
At the end of the road, turn right onto West Washington Street
1120 ft · 32 sec · West Washington Street
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15
Turn left onto North Madison Street
609 ft · 12 sec · North Madison Street
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16
Turn right onto McHenry Avenue
1 mi · 2 min · McHenry Avenue
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17
Continue on Greenwood Road
2.9 mi · 4 min · Greenwood Road
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18
Turn right onto State Route 120
2.6 mi · 4 min · State Route 120
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19
Continue on West Elm Street
2.1 mi · 3 min · West Elm Street
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20
Turn left onto Ringwood Road
1.4 km · 2 min · Ringwood Road
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21
Turn right onto West Flanders Road
2267 ft · 2 min · West Flanders Road
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22
Turn left onto Spring Road
1085 ft · 49 sec · Spring Road
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23
Turn right onto West Orchard Drive
856 ft · 43 sec · West Orchard Drive
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24
Turn left onto Eastwood Drive
717 ft · 36 sec · Eastwood Drive
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25
Turn right onto Parkview Drive
4 m · 1 sec · Parkview Drive
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26
Arrive at your destination
0 m · 1 sec · Parkview Drive
Car Route Details
A richer read on the saved driving route between Rockford and McCullom Lake.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
U.S. Grant Memorial Highway
Continue on U.S. Grant Memorial Highway
13.4 mi · 00h 20m
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.
Mostly Sunny leaving Rockford and Mostly Sunny near McCullom Lake.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Rockford to McCullom Lake?
The road trip is about 50.2 miles (80.8 km) and usually takes 01h 23m 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?
Marengo is a useful midpoint, sitting about 25 miles from Rockford and 25.2 miles from McCullom Lake.
How much longer is the road route than the straight-line distance?
The direct path is about 41.5 miles (66.8 km), while the road route adds roughly 8.7 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 8:00 AM to 10:00 AM CST. If you want a more comfortable same-day return, try to leave by 3:42 PM CST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $8.15 one way or $16.31 round trip. Estimated CO2 is about 15.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Rockford and Mostly Sunny near McCullom Lake.
Stop Ideas Near Marengo
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 Marengo.
Rockford, Illinois
South Beloit, Illinois
Janesville, Wisconsin
Naperville
Flight Path Map
This map shows the direct air route between Rockford and McCullom Lake. Straight-line distance: 41.49 mi (66.77 km).
#1 Rockford
The second most populous city in Illinois.
| Population | 144,835 |
| Coordinates | 42.2711300, -89.0940000 |
| Altitude | 218 |
| Country | United States |
#2 McCullom Lake
City in Illinois, United States of America
| Population | 996 |
| Coordinates | 42.3683500, -88.2925900 |
| Altitude | 240 |
| Country | United States |
End: McCullom Lake (-88.29259, 42.36835)
Estimated Travel Time
Distance: 81 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 40m |
| 40 mph (64.37 km/h) | 01h 15m |
| 50 mph (80.47 km/h) | 01h 00m |
| 60 mph (96.56 km/h) | 00h 50m |
| 70 mph (112.65 km/h) | 00h 43m |
| 80 mph (129 km/h) | 00h 37m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.61 | $8.15 | $16.31 |
| Mid-grade | $5.24 | $9.27 | $18.55 |
| Premium | $5.79 | $10.26 | $20.51 |
| Diesel | $6.59 | $11.67 | $23.34 |
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 · Nov 06, 2026