How far is Rockford, IL from Poplar Grove, IL?
The driving distance from Rockford, IL to Poplar Grove, IL is about 19.3 miles (31.1 km), with a travel time of about 00h 30m by car.
- The straight-line flight distance is about 15.4 miles (24.8 km).
- For a round trip, plan for roughly 01h 01m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM CDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 30m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
Township in Winnebago County, Illinois, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Partly Sunny
Driving Route Map
The map below follows the saved road route between Rockford and Poplar Grove.
Turn-by-Turn Driving Directions
Step-by-step road directions between Rockford and Poplar Grove.
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1
Start on West State Street
2549 ft · 1 min · West State Street
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2
Turn left onto North 3rd Street
1759 ft · 41 sec · North 3rd Street
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3
Continue on North 2nd Street
7.3 mi · 11 min · North 2nd Street
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4
Turn right onto West Lane Road
4.9 mi · 8 min · West Lane Road
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5
Continue on State Route 173
5.6 mi · 8 min · State Route 173
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6
Continue on West Grove Street
2646 ft · 59 sec · West Grove Street
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7
Turn right onto North State Street
1147 ft · 39 sec · North State Street
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8
Arrive at your destination
0 m · 1 sec · North State Street
Car Route Details
A richer read on the saved driving route between Rockford and Poplar Grove.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
North 2nd Street
Continue on North 2nd Street
7.31 mi · 00h 11m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Partly Sunny leaving Rockford and Partly Sunny near Poplar Grove.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Rockford to Poplar Grove?
The road trip is about 19.3 miles (31.1 km) and usually takes 00h 30m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Harlem is a useful midpoint, sitting about 9.6 miles from Rockford and 9.7 miles from Poplar Grove.
How much longer is the road route than the straight-line distance?
The direct path is about 15.4 miles (24.8 km), while the road route adds roughly 3.9 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 7:00 AM to 7:00 PM CDT. If you want a more comfortable same-day return, try to leave by 7:28 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.56 one way or $5.13 round trip. Estimated CO2 is about 6 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Rockford and Partly Sunny near Poplar Grove.
Stop Ideas Near Harlem
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 Harlem.
Rockford, Illinois
South Beloit, Illinois
Janesville, Wisconsin
Madison (South), Wisconsin
Flight Path Map
This map shows the direct air route between Rockford and Poplar Grove. Straight-line distance: 15.43 mi (24.84 km).
#1 Rockford
The second most populous city in Illinois.
| Population | 144,835 |
| Coordinates | 42.2711300, -89.0940000 |
| Altitude | 218 |
| Country | United States |
#2 Poplar Grove
Human settlement
| Population | 5,075 |
| Coordinates | 42.3683500, -88.8220500 |
| Altitude | 274 |
| Country | United States |
End: Poplar Grove (-88.82205, 42.36835)
Estimated Travel Time
Distance: 31 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 38m |
| 40 mph (64.37 km/h) | 00h 29m |
| 50 mph (80.47 km/h) | 00h 23m |
| 60 mph (96.56 km/h) | 00h 19m |
| 70 mph (112.65 km/h) | 00h 16m |
| 80 mph (129 km/h) | 00h 14m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $2.56 | $5.13 |
| Mid-grade | $4.25 | $2.89 | $5.78 |
| Premium | $4.65 | $3.16 | $6.33 |
| Diesel | $5.30 | $3.61 | $7.21 |
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 · May 14, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.