How far is Quincy, IL from Plainfield, IL?
The driving distance from Quincy, IL to Plainfield, IL is about 231.8 miles (373.1 km), with a travel time of about 04h 54m by car.
- The straight-line flight distance is about 183.7 miles (295.7 km).
- For a round trip, plan for roughly 09h 49m 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 04h 54m.
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.
Human settlement in Illinois, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Quincy and Plainfield.
Turn-by-Turn Driving Directions
Step-by-step road directions between Quincy and Plainfield.
-
1
Start on the route
16 m · 2 sec
-
2
Turn right onto Broadway Street
116 m · 36 sec · Broadway Street
-
3
Continue on Broadway Street
923 ft · 25 sec · Broadway Street
-
4
Turn left onto North 3rd Street
2348 ft · 53 sec · North 3rd Street
-
5
Continue on Gardner Expressway
11.3 mi · 20 min · Gardner Expressway
-
6
Continue on East 1083rd Lane
578 ft · 12 sec · East 1083rd Lane
-
7
Take the ramp right
2526 ft · 1 min
-
8
Merge slight left onto Chicago-Kansas City Expressway
2.8 mi · 3 min · Chicago-Kansas City Expressway
-
9
Merge slight right
97.9 mi · 1 hr 45 min
-
10
Take the exit slight right toward I 72 East, US 36 East: Decatur
30 mi · 33 min
-
11
Take the exit slight right toward US 36 East, US 51 South: Decatur, Pana
1656 ft · 41 sec
-
12
Keep slight right to continue on US 51 South: Pana
3132 ft · 1 min
-
13
Merge slight left
5 mi · 5 min
-
14
Take the exit slight right toward Decatur, Elwin, Mount Zion
1875 ft · 54 sec
-
15
Turn slight left
34 m · 3 sec
-
16
Turn left onto South Business Route 51
1771 ft · 39 sec · South Business Route 51
-
17
Turn left onto West Elwin Road
4.2 mi · 6 min · West Elwin Road
-
18
Continue on West Main Street
1.8 mi · 3 min · West Main Street
-
19
Turn right onto South State Route 121
33.8 mi · 49 min · South State Route 121
-
20
Continue on Dewitt Avenue
5.8 mi · 10 min · Dewitt Avenue
-
21
Turn right onto Lerna Road
2702 ft · 56 sec · Lerna Road
-
22
Turn left onto Illinois Route 16
6 mi · 8 min · Illinois Route 16
-
23
Continue on West Lincoln Avenue
1.8 mi · 3 min · West Lincoln Avenue
-
24
Turn right onto 18th Street
1.6 mi · 2 min · 18th Street
-
25
Continue on Illinois Route 130
1.2 km · 1 min · Illinois Route 130
-
26
Continue on Route 130
10 mi · 15 min · Route 130
-
27
Continue on County Road 1825 East
2 mi · 3 min · County Road 1825 East
-
28
Continue on County Road 1775 E
1.3 km · 1 min · County Road 1775 E
-
29
Continue on North Haughton Highway
1945 ft · 33 sec · North Haughton Highway
-
30
Continue on 1700E
1.3 mi · 2 min · 1700E
-
31
Continue on North Haughton Highway
4 mi · 6 min · North Haughton Highway
-
32
Continue on County Road 1700E
2.1 mi · 3 min · County Road 1700E
-
33
Continue on North 1250th Street
4.7 mi · 7 min · North 1250th Street
-
34
Turn left onto North Street
1912 ft · 59 sec · North Street
-
35
Turn left onto North 1280th Street
19 m · 3 sec · North 1280th Street
-
36
Arrive at your destination
0 m · 1 sec · North 1280th Street
Car Route Details
A richer read on the saved driving route between Quincy and Plainfield.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Chicago-Kansas City Expressway
Merge slight right
97.9 mi · 01h 45m
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.
Rain Showers leaving Quincy and Showers And Thunderstorms near Plainfield.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Quincy to Plainfield?
The road trip is about 231.8 miles (373.1 km) and usually takes 04h 54m 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?
Clear Lake is a useful midpoint, sitting about 115.8 miles from Quincy and 116.1 miles from Plainfield.
How much longer is the road route than the straight-line distance?
The direct path is about 183.7 miles (295.7 km), while the road route adds roughly 48.1 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 7:10 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $30.85 one way or $61.69 round trip. Estimated CO2 is about 72.7 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Quincy and Showers And Thunderstorms near Plainfield.
Stop Ideas Near Clear Lake
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 Clear Lake.
Springfield station
Lincoln
Carlinville
Uptown Station
Flight Path Map
This map shows the direct air route between Quincy and Plainfield. Straight-line distance: 183.74 mi (295.7 km).
#1 Quincy
County seat of Adams County, Illinois, United States
| Population | 39,589 |
| Coordinates | 39.9356000, -91.4098700 |
| Altitude | 173 |
| Country | United States |
#2 Plainfield
Village in Illinois, United States
| Population | 44,542 |
| Coordinates | 39.1036500, -88.1353200 |
| Altitude | 171 |
| Country | United States |
End: Plainfield (-88.13532, 39.10365)
Estimated Travel Time
Distance: 373 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 43m |
| 40 mph (64.37 km/h) | 05h 47m |
| 50 mph (80.47 km/h) | 04h 38m |
| 60 mph (96.56 km/h) | 03h 51m |
| 70 mph (112.65 km/h) | 03h 18m |
| 80 mph (129 km/h) | 02h 53m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $30.85 | $61.69 |
| Mid-grade | $4.25 | $34.79 | $69.58 |
| Premium | $4.65 | $38.07 | $76.14 |
| Diesel | $5.30 | $43.39 | $86.77 |
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 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.