How far is Boulder Hill, IL from Rockford, IL?
The driving distance from Boulder Hill, IL to Rockford, IL is about 76 miles (122.3 km), with a travel time of about 01h 22m by car.
- The straight-line flight distance is about 54.8 miles (88.2 km).
- For a round trip, plan for roughly 02h 45m 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 22m.
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.
Sunny
Driving Route Map
The map below follows the saved road route between Boulder Hill and Rockford.
Turn-by-Turn Driving Directions
Step-by-step road directions between Boulder Hill and Rockford.
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1
Start on Circle Drive East
1261 ft · 57 sec · Circle Drive East
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2
Turn right onto Greenbriar Road
1618 ft · 1 min · Greenbriar Road
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3
Turn left onto Fernwood Road
92 m · 16 sec · Fernwood Road
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4
Turn right onto Briarcliff Road
82 m · 14 sec · Briarcliff Road
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5
Turn left
5.6 mi · 8 min
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6
Continue straight
3.1 mi · 4 min
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7
Continue on Illinois Route 47
3.1 mi · 5 min · Illinois Route 47
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8
Continue on Route 47
1.5 km · 1 min · Route 47
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9
Continue on Illinois Route 47
684 ft · 9 sec · Illinois Route 47
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10
Take the exit slight right toward I 88 West Toll: DeKalb
1562 ft · 38 sec
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11
Merge slight left onto Ronald Reagan Memorial Tollway
30.3 mi · 32 min · Ronald Reagan Memorial Tollway
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12
Take the exit slight right toward I 39 North, US 51 North: Rockford
1.1 km · 1 min
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13
Merge slight left
21.1 mi · 23 min
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14
Take the exit slight left toward US 20 West: Freeport, Rockford
1.1 mi · 2 min
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15
Merge slight left onto U.S. Grant Memorial Highway
4.7 mi · 5 min · U.S. Grant Memorial Highway
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16
Take the exit slight right toward IL 2: Rockford, Dixon
1810 ft · 44 sec
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17
Keep slight right
86 m · 7 sec
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18
Turn straight onto South Main Street
3.7 mi · 6 min · South Main Street
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19
Turn right onto West State Street
45 m · 4 sec · West State Street
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20
Arrive at your destination
0 m · 1 sec · West State Street
Car Route Details
A richer read on the saved driving route between Boulder Hill and Rockford.
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
30.3 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.
Sunny leaving Boulder Hill and Sunny near Rockford.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Boulder Hill to Rockford?
The road trip is about 76 miles (122.3 km) and usually takes 01h 22m 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 37.8 miles from Boulder Hill and 38.2 miles from Rockford.
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 21.2 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 3:44 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $10.11 one way or $20.21 round trip. Estimated CO2 is about 23.8 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Boulder Hill and Sunny near Rockford.
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 Boulder Hill and Rockford. Straight-line distance: 54.81 mi (88.21 km).
#1 Boulder Hill
City in Illinois, United States of America
| Population | 8,108 |
| Coordinates | 41.7125300, -88.3361800 |
| Altitude | 204 |
| 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: 122 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 31m |
| 40 mph (64.37 km/h) | 01h 53m |
| 50 mph (80.47 km/h) | 01h 31m |
| 60 mph (96.56 km/h) | 01h 15m |
| 70 mph (112.65 km/h) | 01h 05m |
| 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 | $10.11 | $20.21 |
| Mid-grade | $4.25 | $11.40 | $22.80 |
| Premium | $4.65 | $12.47 | $24.95 |
| Diesel | $5.30 | $14.21 | $28.43 |
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 22, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.