How far is Rockford, IL from Boulder Hill, IL?
The driving distance from Rockford, IL to Boulder Hill, IL is about 75.1 miles (120.9 km), with a travel time of about 01h 32m by car.
- The straight-line flight distance is about 54.8 miles (88.2 km).
- For a round trip, plan for roughly 03h 05m 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 32m.
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 Illinois, US
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 Boulder Hill.
Turn-by-Turn Driving Directions
Step-by-step road directions between Rockford and Boulder Hill.
-
1
Start on West State Street
546 ft · 23 sec · West State Street
-
2
Turn left onto South Church Street
1519 ft · 37 sec · South Church Street
-
3
Turn left onto Cedar Street
84 m · 5 sec · Cedar Street
-
4
Turn right onto South Main Street
3.6 mi · 6 min · South Main Street
-
5
Take the ramp left
1707 ft · 44 sec
-
6
Merge slight left onto U.S. Grant Memorial Highway
4.3 mi · 5 min · U.S. Grant Memorial Highway
-
7
Take the exit slight right
1.2 km · 2 min
-
8
Merge slight right
21.5 mi · 23 min
-
9
Take the exit slight right toward I 88 East Toll: Chicago
2318 ft · 1 min
-
10
Merge slight left onto Ronald Reagan Memorial Tollway
35.9 mi · 39 min · Ronald Reagan Memorial Tollway
-
11
Take the exit slight right toward Orchard Road
1702 ft · 54 sec
-
12
At the end of the road, turn left onto Orchard Road
4.9 mi · 8 min · Orchard Road
-
13
Turn left onto East Base Line Road
2.1 mi · 3 min · East Base Line Road
-
14
Turn right onto Briarcliff Road
82 m · 18 sec · Briarcliff Road
-
15
Turn left onto Fernwood Road
92 m · 15 sec · Fernwood Road
-
16
Turn right onto Greenbriar Road
1618 ft · 1 min · Greenbriar Road
-
17
Turn left onto Circle Drive East
1261 ft · 56 sec · Circle Drive East
-
18
Arrive at your destination
0 m · 1 sec · Circle Drive East
Car Route Details
A richer read on the saved driving route between Rockford and Boulder Hill.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Ronald Reagan Memorial Tollway
Merge slight left onto Ronald Reagan Memorial Tollway
35.9 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 Boulder Hill.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Rockford to Boulder Hill?
The road trip is about 75.1 miles (120.9 km) and usually takes 01h 32m 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?
Malta is a useful midpoint, sitting about 37.5 miles from Rockford and 37.6 miles from Boulder Hill.
How much longer is the road route than the straight-line distance?
The direct path is about 54.8 miles (88.2 km), while the road route adds roughly 20.3 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 3:24 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $9.99 one way or $19.99 round trip. Estimated CO2 is about 23.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Rockford and Mostly Sunny near Boulder Hill.
Stop Ideas Near Malta
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 Malta.
Rockford, Illinois
Plano
Mendota station
Naperville
Flight Path Map
This map shows the direct air route between Rockford and Boulder Hill. Straight-line distance: 54.81 mi (88.21 km).
#1 Rockford
The second most populous city in Illinois.
| Population | 144,835 |
| Coordinates | 42.2711300, -89.0940000 |
| Altitude | 218 |
| Country | United States |
#2 Boulder Hill
City in Illinois, United States of America
| Population | 8,108 |
| Coordinates | 41.7125300, -88.3361800 |
| Altitude | 204 |
| Country | United States |
End: Boulder Hill (-88.33618, 41.71253)
Estimated Travel Time
Distance: 121 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 30m |
| 40 mph (64.37 km/h) | 01h 52m |
| 50 mph (80.47 km/h) | 01h 30m |
| 60 mph (96.56 km/h) | 01h 15m |
| 70 mph (112.65 km/h) | 01h 04m |
| 80 mph (129 km/h) | 00h 56m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $9.99 | $19.99 |
| Mid-grade | $4.25 | $11.27 | $22.54 |
| Premium | $4.65 | $12.33 | $24.67 |
| Diesel | $5.30 | $14.06 | $28.11 |
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.