How far is Frankfort, IL from Rockford, IL?
The driving distance from Frankfort, IL to Rockford, IL is about 357.9 miles (576 km), with a travel time of about 05h 22m by car.
- The straight-line flight distance is about 302.2 miles (486.3 km).
- For a round trip, plan for roughly 10h 45m 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 05h 22m.
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.
City in Illinois, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms
Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between Frankfort and Rockford.
Turn-by-Turn Driving Directions
Step-by-step road directions between Frankfort and Rockford.
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1
Start on East Saint Louis Street
30 m · 9 sec · East Saint Louis Street
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2
Turn left onto North Benton Road
788 ft · 37 sec · North Benton Road
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3
Turn right onto East Main Street
2.3 mi · 4 min · East Main Street
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4
Enter the roundabout and take exit 1 toward the route
6 m · 1 sec
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5
Exit the roundabout
1714 ft · 42 sec
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6
Merge slight left onto Ken Gray Expressway
31 mi · 34 min · Ken Gray Expressway
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7
Keep slight right to continue on Ken Gray Expressway
20.5 mi · 22 min · Ken Gray Expressway
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8
Take the exit slight right toward US 50: Salem, Sandoval
2199 ft · 54 sec
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9
Merge slight left onto West Main Street
2.4 mi · 3 min · West Main Street
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10
Continue on East Poplar Street
2.7 mi · 3 min · East Poplar Street
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11
Continue on Poplar
2.7 mi · 3 min · Poplar
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12
Turn right onto 150E
10.4 mi · 12 min · 150E
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13
Continue on 300E
13.5 mi · 15 min · 300E
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14
Turn left
2405 ft · 35 sec
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15
Turn right onto North Kennedy Boulevard
1.6 mi · 2 min · North Kennedy Boulevard
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16
Continue on County Road 875 East
11.1 mi · 13 min · County Road 875 East
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17
Continue on South Superior Street
15.1 mi · 17 min · South Superior Street
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18
Continue on County Road 2400 East
2 mi · 3 min · County Road 2400 East
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19
Continue on Fair Avenue
3070 ft · 2 min · Fair Avenue
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20
Continue on South Poplar Street
2138 ft · 32 sec · South Poplar Street
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21
Turn right onto East 1st Street
2150 ft · 1 min · East 1st Street
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22
Turn left onto Cedar Street
116 m · 5 sec · Cedar Street
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23
Turn right onto Jackson Street
2709 ft · 2 min · Jackson Street
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24
Continue on North 2600 East Road
1.6 km · 2 min · North 2600 East Road
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25
Turn left
28.7 mi · 33 min
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26
Take the exit slight right toward Decatur
2582 ft · 1 min
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27
Keep slight right to continue on Decatur
44 m · 4 sec
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28
Turn straight onto South Business Route 51
2.6 mi · 4 min · South Business Route 51
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29
Continue on South Main Street
769 ft · 19 sec · South Main Street
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30
Continue on South Franklin Street
1.6 mi · 3 min · South Franklin Street
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31
Continue on North Water Street
27.4 mi · 37 min · North Water Street
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32
Continue on North 1450 East Road
14.7 mi · 18 min · North 1450 East Road
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33
Take the exit slight right toward I 74 West, US 51 North: Peoria, Rockford
8.9 mi · 10 min
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34
Take the exit slight right toward I 39 North: Rockford
119.9 mi · 2 hr 9 min
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35
Take the exit slight left toward US 20 West: Freeport, Rockford
1.1 mi · 2 min
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36
Merge slight left onto U.S. Grant Memorial Highway
4.7 mi · 5 min · U.S. Grant Memorial Highway
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37
Take the exit slight right toward IL 2: Rockford, Dixon
1810 ft · 44 sec
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38
Keep slight right
86 m · 7 sec
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39
Turn straight onto South Main Street
3.7 mi · 6 min · South Main Street
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40
Turn right onto West State Street
45 m · 4 sec · West State Street
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41
Arrive at your destination
0 m · 1 sec · West State Street
Car Route Details
A richer read on the saved driving route between Frankfort and Rockford.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 39 North
Take the exit slight right toward I 39 North: Rockford
120 mi · 02h 09m
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.
Chance Showers And Thunderstorms leaving Frankfort and Showers And Thunderstorms Likely near Rockford.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Frankfort to Rockford?
The road trip is about 357.9 miles (576 km) and usually takes 05h 22m 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?
Maroa is a useful midpoint, sitting about 167.1 miles from Frankfort and 190.8 miles from Rockford.
How much longer is the road route than the straight-line distance?
The direct path is about 302.2 miles (486.3 km), while the road route adds roughly 55.7 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 6:14 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $47.63 one way or $95.26 round trip. Estimated CO2 is about 112.2 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around Frankfort and Showers And Thunderstorms Likely near Rockford.
Stop Ideas Near Maroa
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Clinton City Hall
Warrensburg Village Hall
City of Decatur
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Maroa.
Lincoln
Uptown Station
Illinois Terminal
Springfield station
Flight Path Map
This map shows the direct air route between Frankfort and Rockford. Straight-line distance: 302.19 mi (486.32 km).
#1 Frankfort
County seat city in Franklin County, Kentucky, USA and Kentucky federated state capital city
| Population | 19,411 |
| Coordinates | 37.9000500, -88.9022900 |
| Altitude | 145 |
| Country | United States |
#2 Rockford
The second most populous city in Illinois.
| Population | 144,835 |
| Coordinates | 42.2711300, -89.0940000 |
| Altitude | 218 |
| Country | United States |
End: West State Street (-89.094046, 42.271066)
Estimated Travel Time
Distance: 576 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 55m |
| 40 mph (64.37 km/h) | 08h 56m |
| 50 mph (80.47 km/h) | 07h 09m |
| 60 mph (96.56 km/h) | 05h 57m |
| 70 mph (112.65 km/h) | 05h 06m |
| 80 mph (129 km/h) | 04h 27m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $47.63 | $95.26 |
| Mid-grade | $4.25 | $53.72 | $107.43 |
| Premium | $4.65 | $58.78 | $117.56 |
| Diesel | $5.30 | $66.99 | $133.98 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.