How far is Rockford, IL from Frankfort, IL?
The driving distance from Rockford, IL to Frankfort, IL is about 108.3 miles (174.3 km), with a travel time of about 02h 16m by car.
- The straight-line flight distance is about 83.5 miles (134.4 km).
- For a round trip, plan for roughly 04h 32m 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 02h 16m.
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.
Village in United States of America
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 Frankfort.
Turn-by-Turn Driving Directions
Step-by-step road directions between Rockford and Frankfort.
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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
32.7 mi · 39 min
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18
Keep slight left to continue on I 80 East: Indiana
1.3 mi · 3 min
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19
Merge slight left
4.7 mi · 5 min
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20
Take the exit slight right toward US 45: La Grange Road
2537 ft · 1 min
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21
Keep slight right to continue on US 45 South: Mokena, Frankfort
53 m · 6 sec
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22
Turn straight onto South La Grange Road
3.3 mi · 6 min · South La Grange Road
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23
Turn left onto Old Frankfort Way
1104 ft · 32 sec · Old Frankfort Way
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24
At the end of the road, turn right onto North White Street
1754 ft · 53 sec · North White Street
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25
At the end of the road, turn left onto East Nebraska Street
63 m · 8 sec · East Nebraska Street
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26
Turn right onto Center Road
853 ft · 25 sec · Center Road
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27
Turn right
22 m · 7 sec
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28
Turn right
51 m · 12 sec
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29
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Rockford and Frankfort.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
I 355 South Tollway
Keep slight left to continue on I 355 South Tollway: Joliet
32.7 mi · 00h 39m
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 Frankfort.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Rockford to Frankfort?
The road trip is about 108.3 miles (174.3 km) and usually takes 02h 16m 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?
South Barrington is a useful midpoint, sitting about 54.1 miles from Rockford and 54.2 miles from Frankfort.
How much longer is the road route than the straight-line distance?
The direct path is about 83.5 miles (134.4 km), while the road route adds roughly 24.8 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 8:00 AM to 10:00 AM CST. If you want a more comfortable same-day return, try to leave by 1:58 PM CST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $17.43 one way or $34.85 round trip. Estimated CO2 is about 33.9 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Rockford and Mostly Sunny near Frankfort.
Stop Ideas Near South Barrington
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 South Barrington.
Glenview station
Naperville
La Grange Road
Summit
Flight Path Map
This map shows the direct air route between Rockford and Frankfort. Straight-line distance: 83.5 mi (134.38 km).
#1 Rockford
The second most populous city in Illinois.
| Population | 144,835 |
| Coordinates | 42.2711300, -89.0940000 |
| Altitude | 218 |
| Country | United States |
#2 Frankfort
Frankfort is a place in Illinois, United States.
| Population | 0 |
| Coordinates | 41.4958700, -87.8486600 |
| Altitude | 232 |
| Country | United States |
End: Frankfort (-87.84866, 41.49587)
Estimated Travel Time
Distance: 174 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 36m |
| 40 mph (64.37 km/h) | 02h 42m |
| 50 mph (80.47 km/h) | 02h 09m |
| 60 mph (96.56 km/h) | 01h 48m |
| 70 mph (112.65 km/h) | 01h 32m |
| 80 mph (129 km/h) | 01h 21m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.56 | $17.43 | $34.85 |
| Mid-grade | $5.19 | $19.81 | $39.63 |
| Premium | $5.75 | $21.96 | $43.92 |
| Diesel | $6.56 | $25.07 | $50.13 |
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 07, 2026