Road Ranger
0.1 mi from route
Trip from Rockford, IL to Thomasboro, IL
Pin this tripCompiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 29, 2026 · Editorial standards
Drive Time
3h 34m
Distance
191.6 mi
308 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$30
one way
EV Charging
Unknown
Best Time to Leave
4 AM
3h 22m
★
6 AM
3h 34m
8 AM
3h 59m
10 AM
3h 43m
12 PM
3h 41m
3 PM
3h 44m
5 PM
3h 58m
8 PM
3h 27m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Rockford, IL
Wikimedia Commons
Thomasboro, IL
Wikimedia Commons
Trip Overview
Rockford to Thomasboro is 191.6 miles and takes about 3h 34m via I 39 and I 74, with a fuel budget near $29 and enough daylight to finish in a day. This trip stays within Illinois, traversing the Midwest region. You'll spend most of your time on major highways, making for a straightforward drive. Given the relatively short duration, it's ideal for a single-day excursion. Plan for a smooth, efficient trip between these two Illinois cities.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
95.8 miles from Rockford, IL
A natural place for your longest stop of the day , about 1h 47m into the drive .
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 39 | 118.2 mi | 2h 6m |
| I 74 | 45.3 mi | 48m |
| US 51 | 7.6 mi | 8m |
| U.S. Grant Memorial Highway | 4.3 mi | 4m |
| County Road 1500 East | 3.6 mi | 5m |
| South Main Street | 3.6 mi | 6m |
| East Leverett Road | 3.5 mi | 6m |
| I 57 | 2.4 mi | 2m |
Longest stretch:
I 39
— 118.2 mi, about 2h 6m
Traffic on I-39
Hour-of-day weekday pattern from 4 FHWA count stations on your route.
Peak
3 PM
~990 veh/hr typical · worst 1,284
Quietest
1 AM
~98 veh/hr
Peak-to-quiet ratio
10.1×
busier at peak than in the quiet hours
12a
6a
noon
6p
11p
Averaged across 50 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Rockford, IL and Thomasboro, IL.
1
Start on West State Street
0.1 mi
·
23 sec
·
West State Street
2
Turn left onto IL 2
0.3 mi
·
36 sec
·
South Church Street
3
Turn left onto IL 2
275 ft
·
4 sec
·
Cedar Street
4
Turn right onto IL 2
3.6 mi
·
6 min
·
South Main Street
5
Take the ramp
0.3 mi
·
43 sec
6
Merge onto US 20
4.3 mi
·
4 min
·
U.S. Grant Memorial Highway
7
Take the exit
0.8 mi
·
1 min
8
Merge onto I 39; US 51
118 mi
·
2 hr 6 min
·
I 39; US 51
9
Keep slight right at fork onto US 51
7.6 mi
·
8 min
·
US 51
Toward I 55 South, US 51 South: Peoria, Champaign, Saint Louis, Decatur
10
Keep slight left at fork onto I 74; US 51
45 mi
·
48 min
·
I 74; US 51
Toward I 74 East, US 51 South, US 55 Business North: Indianapolis, Decatur
11
Take the exit
0.4 mi
·
35 sec
Exit 179
Toward I 57: Chicago, Memphis
12
Keep slight left at fork
0.7 mi
·
1 min
Exit 179
Toward I 57 North: Chicago
13
Merge onto I 57
2.4 mi
·
2 min
·
I 57
14
Take the exit
0.3 mi
·
26 sec
Exit 240
Toward Market Street
15
Keep slight right at fork
124 ft
·
5 sec
16
Turn straight onto Market Street
0.2 mi
·
23 sec
·
Market Street
17
Turn left onto East Leverett Road
3.5 mi
·
6 min
·
East Leverett Road
18
Turn left onto US 45
3.6 mi
·
5 min
·
County Road 1500 East
19
Turn left onto West Clark Street
312 ft
·
10 sec
·
West Clark Street
20
Arrive at destination
West Clark Street
Trip Plan
For this 3h 34m drive, starting in the morning allows ample time to reach Thomasboro without feeling rushed. Since it's a single-day trip, you have flexibility in departure time. The estimated fuel cost is $29, so ensure you have enough for the roughly 191.6 miles. The longest stretch without significant changes in road type is 118.2 miles on I 39, so plan your last major fuel stop before entering this segment if needed. With only one recommended stop, you can easily manage your breaks.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 95.8 miles from Rockford, IL, or about 1h 47m into the drive.
The longest continuous stretch on this route runs about 118.2 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 42 miles or 49m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 95.8 miles or 1h 47m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 52m
Traffic, exits, and arrival timing usually matter more near Thomasboro, IL than in the middle of the route.
Before You Leave
+
Open the route before leaving Rockford, IL so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Rockford, IL
This is one driving day of about 191.6 miles and 3h 34m.
Your first comfortable stop window is around 42 miles from Rockford, IL.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 39 for about 118.2 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
96 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
Pacing Suggestions
Fuel and coffee
A short stop after about 42 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 95.8 miles from Rockford, IL, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before I 39 if your tank is already low. That segment runs about 118.2 miles.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Stops Along Your Drive
Picked by where they fit in your drive — first break, midpoint reset, final stretch.
Willow Creek Rest Area - Northbound
0.1 mi from route
Farmland Rest Area - Westbound
0.1 mi from route
TA
0.2 mi from route
Road Ranger
0.2 mi from route
Love's Travel Stop
0.2 mi from route
Farmland Rest Area - Eastbound
0.2 mi from route
Love's Travel Stop
0.2 mi from route
Love's Travel Stop
0.2 mi from route
Love's Travel Stop
0.3 mi from route
Road Ranger
0.3 mi from route
Willow Creek Rest Area - Southbound
0.3 mi from route
Love's Travel Stop
0.3 mi from route
Petro Stopping Centers
0.4 mi from route
Pilot Travel Center
0.4 mi from route
Service Plaza
0.4 mi from route
Pilot Travel Center
0.6 mi from route
Road Ranger
0.6 mi from route
Road Ranger
0.7 mi from route
Flying J Travel Center
2 mi from route
QuikTrip
2.2 mi from route
Love's Travel Stop
2.3 mi from route
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 145 decision points cluster between mile 0.1 and 180.8 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0.1 mi into trip
|
~0m in
|
IL 2 / South Church Street
Turn left onto IL 2 / South Church Street
Navigation decision point
6
127.6 mi into trip
|
~2h 21m in
|
US 51
Keep slight right at fork onto US 51 toward I 55 South, US 51 South: Peoria, Champaign, Saint Louis, Decatur
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward I 55 South, US 51 South: Peoria, Champai...
6
135.2 mi into trip
|
~2h 29m in
|
I 74; US 51
Keep slight left at fork onto I 74; US 51 toward I 74 East, US 51 South, US 55 Business North: Indianapolis, Decatur
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward I 74 East, US 51 South, US 55 Business N...
6
180.4 mi into trip
|
~3h 17m in
Take the exit toward I 57: Chicago, Memphis
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 179
Toward I 57: Chicago, Memphis
6
180.8 mi into trip
|
~3h 18m in
Keep slight left at fork toward I 57 North: Chicago
Highway fork - watch signs carefully
Exit 179
Toward I 57 North: Chicago
Fuel & Cost
Regular Gas
$29.94 one way
$59.88 round trip
$3.97/gal
25.4 MPG avg
67 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.37 | $32.96 | $65.91 |
| premium | $4.88 | $36.80 | $73.59 |
| diesel | $5.35 | $40.36 | $80.73 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$30
Meals
$25–$50
Total
$55–$80
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 67 kg one way. Prices: EIA weekly data, 2026-04-27.
Driving Electric?
About $20 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 57.5 | 0 | $20.12 | $9.20 |
| Efficient EV | 47.9 | 0 | $16.76 | $7.66 |
| EV Truck/SUV | 76.6 | 0 | $26.82 | $12.26 |
Gas CO2
67 kg
EV CO2
22 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Origin
Rockford, IL
Morning in Rockford on Wednesday
Local time
6:55 AM
CDT
Current temp
70°F
Mostly Sunny
ESE 10 mph
0% chance
Live forecast
Flood Warning
Flood Warning issued April 26 at 3:49PM CDT by NWS Milwaukee/Sullivan WI
Flood Warning
Flood Warning issued April 26 at 3:49PM CDT until May 2 at 7:00PM CDT by NWS Milwaukee/Sullivan WI
Destination
Thomasboro, IL
Morning in Thomasboro on Wednesday
Local time
6:55 AM
CDT
Current temp
75°F
Mostly Sunny
ESE 12 mph
0% chance
Live forecast
Flood Warning
Flood Warning issued April 26 at 3:49PM CDT by NWS Milwaukee/Sullivan WI
Flood Warning
Flood Warning issued April 26 at 3:49PM CDT until May 2 at 7:00PM CDT by NWS Milwaukee/Sullivan WI
72°F
Toluca, IL
96 mi in
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
5 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
3h 34m on the road
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
What kind of drive is this?
This route is primarily highway driving, with 91% of the travel on major roads. You'll experience a long stretch of 118.2 miles on I 39, which means extended periods of consistent speed. Surface roads are encountered later in the trip, likely near your destination. Expect relatively frequent exits on the interstate sections, indicating potential for convenient services.
91% highway — fuel and pacing are the main things to plan.
20 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 118.2 mi on I 39.
How Hard Is This Drive?
7/10
This is a straightforward highway drive that stays mostly on I 39 and I 74. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.1 miles in near IL 2 / South Church Street.
Driving Effort
7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 14 significant decision points across 191.6 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 0.1 miles (IL 2 / South Church Street): Navigation decision point; at 127.6 miles (US 51): Highway fork - watch signs carefully. Multiple destination signs - pick the right one; at 135.2 miles (I 74; US 51): Highway fork - watch signs carefully. Multiple destination signs - pick the right one.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Rockford, IL and Thomasboro, IL, road signs point toward Champaign, Saint Louis, Decatur and Memphis.
Champaign
127.6 mi in
|
~2h 21m
|
via US 51
Saint Louis
127.6 mi in
|
~2h 21m
|
via US 51
Decatur
127.6 mi in
|
~2h 21m
|
via US 51
Memphis
180.4 mi in
|
~3h 17m
About the Cities
Starting in Rockford, IL
Full guide →Founded 1852
Rockford is a city in the Rock River Valley in Northern Illinois. With a population of over 145,000 (2019), it is the third largest city in the state.
Top landmarks
- • Kenneth and Phyllis Laurent House — Usonian house
- • Herrick Cobblestone — house in Rockford, Illinois, USA
- • Haight Village Historic District — park in the United States of America
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 3h 34m. Total distance: 191.6 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 34m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (91%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 118.2 miles on I 39. The full list of main roads is in the Roads section above.
Yes — we found about 22 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Thomasboro, IL before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. There are 22 rest areas along the route for bathroom stops.
The main spots that need attention: at 0.1 miles (IL 2 / South Church Street): Navigation decision point; at 127.6 miles (US 51): Highway fork - watch signs carefully. Multiple destination signs - pick the right one; at 135.2 miles (I 74; US 51): Highway fork - watch signs carefully. Multiple destination signs - pick the right one.
Possible but tiring. At 3.6 hours each way, an in-and-out day trip would put you behind the wheel for 7.1 hours — manageable with a long break at Thomasboro, IL, but most travelers stay overnight.
How this page is built
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and FHWA TMAS for hourly traffic volumes. See our methodology for refresh cadence and limitations.
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