How far is Rockford, IL from Lemont, IL?
The driving distance from Rockford, IL to Lemont, IL is about 91.3 miles (147 km), with a travel time of about 01h 54m by car.
- The straight-line flight distance is about 69.7 miles (112.1 km).
- For a round trip, plan for roughly 03h 48m 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 01h 54m.
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.
The second most populous city in Kane County, Illinois.
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 Lemont.
Turn-by-Turn Driving Directions
Step-by-step road directions between Rockford and Lemont.
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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
3021 ft · 1 min · Harrison Avenue
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8
Take the ramp slight left
1207 ft · 30 sec
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9
Merge slight left
912 ft · 11 sec
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10
Take the exit slight right toward I 90 East: Chicago
2544 ft · 1 min
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11
Merge slight left onto Jane Addams Memorial Tollway
19.8 mi · 21 min · Jane Addams Memorial Tollway
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12
Keep slight left to continue on Jane Addams Memorial Tollway
29.8 mi · 32 min · Jane Addams Memorial Tollway
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13
Take the exit slight right toward I 290, IL 53: Chicago, West Suburbs
2618 ft · 1 min
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14
Keep slight right to continue on I 290 East, IL 53 South: Chicago, West Suburbs
1686 ft · 41 sec
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15
Continue on I 290 East, IL 53 South: Chicago, West Suburbs
1362 ft · 33 sec
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16
Merge slight left
5.7 mi · 7 min
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17
Keep slight left to continue on I 355 South Tollway: Joliet
23.4 mi · 29 min
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18
Take the exit slight right toward 127th Street, Lemont
1901 ft · 46 sec
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19
Continue on 127th Street, Lemont
827 ft · 22 sec
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20
Turn straight onto 127th Street
1.6 km · 2 min · 127th Street
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21
Turn left onto State Street
1.1 mi · 2 min · State Street
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22
Turn right onto East Illinois Street
154 m · 19 sec · East Illinois Street
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23
Turn left onto Lemont Street
58 m · 14 sec · Lemont Street
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24
Turn left onto Main Street
139 m · 18 sec · Main Street
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25
Arrive at your destination
0 m · 1 sec · West New Avenue
Car Route Details
A richer read on the saved driving route between Rockford and Lemont.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Jane Addams Memorial Tollway
Keep slight left to continue on Jane Addams Memorial Tollway
29.8 mi · 00h 32m
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 Lemont.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Rockford to Lemont?
The road trip is about 91.3 miles (147 km) and usually takes 01h 54m 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?
Elgin is a useful midpoint, sitting about 45.6 miles from Rockford and 45.7 miles from Lemont.
How much longer is the road route than the straight-line distance?
The direct path is about 69.7 miles (112.1 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 2:42 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $12.14 one way or $24.29 round trip. Estimated CO2 is about 28.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Rockford and Mostly Sunny near Lemont.
Stop Ideas Near Elgin
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 Elgin.
Naperville
Glenview station
La Grange Road
Summit
Flight Path Map
This map shows the direct air route between Rockford and Lemont. Straight-line distance: 69.66 mi (112.1 km).
#1 Rockford
The second most populous city in Illinois.
| Population | 144,835 |
| Coordinates | 42.2711300, -89.0940000 |
| Altitude | 218 |
| Country | United States |
#2 Lemont
Historic village in the U.
| Population | 17,338 |
| Coordinates | 41.6736400, -88.0017300 |
| Altitude | 185 |
| Country | United States |
End: Lemont (-88.00173, 41.67364)
Estimated Travel Time
Distance: 147 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 02m |
| 40 mph (64.37 km/h) | 02h 17m |
| 50 mph (80.47 km/h) | 01h 49m |
| 60 mph (96.56 km/h) | 01h 31m |
| 70 mph (112.65 km/h) | 01h 18m |
| 80 mph (129 km/h) | 01h 08m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $12.14 | $24.29 |
| Mid-grade | $4.25 | $13.69 | $27.39 |
| Premium | $4.65 | $14.99 | $29.97 |
| Diesel | $5.30 | $17.08 | $34.16 |
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.