How far is Assumption, IL from Joliet, IL?
The driving distance from Assumption, IL to Joliet, IL is about 170.9 miles (275.1 km), with a travel time of about 03h 23m by car.
- The straight-line flight distance is about 147.5 miles (237.4 km).
- For a round trip, plan for roughly 06h 47m 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 03h 23m.
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.
Township in McLean County, Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Showers And Thunderstorms then Mostly Sunny
Driving Route Map
The map below follows the saved road route between Assumption and Joliet.
Turn-by-Turn Driving Directions
Step-by-step road directions between Assumption and Joliet.
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1
Start on East 1st Street
32 m · 10 sec · East 1st Street
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2
Turn left onto North Oak Street
1151 ft · 52 sec · North Oak Street
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3
At the end of the road, turn right onto East 1200 North Road
2240 ft · 1 min · East 1200 North Road
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4
Continue on County Highway 6
825 ft · 26 sec · County Highway 6
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5
Turn right onto North 2600 East Road
2760 ft · 48 sec · North 2600 East Road
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6
Continue straight
19.9 mi · 23 min
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7
Take the exit slight right toward Decatur
2582 ft · 1 min
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8
Keep slight right to continue on Decatur
44 m · 4 sec
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9
Turn straight onto South Business Route 51
2.6 mi · 4 min · South Business Route 51
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10
Continue on South Main Street
769 ft · 19 sec · South Main Street
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11
Continue on South Franklin Street
1.6 mi · 3 min · South Franklin Street
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12
Continue on North Water Street
27.4 mi · 37 min · North Water Street
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13
Continue on North 1450 East Road
14.7 mi · 18 min · North 1450 East Road
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14
Take the exit slight right toward I 74 West, US 51 North: Peoria, Rockford
95.2 mi · 1 hr 43 min
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15
Take the exit slight right toward I 80 East: Indiana
1.2 km · 1 min
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16
Merge slight left
5.1 mi · 6 min
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17
Take the exit slight right toward Center Street
1.3 km · 2 min
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18
Continue on South Center Street
1401 ft · 38 sec · South Center Street
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19
Continue on Hickory Street
1164 ft · 36 sec · Hickory Street
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20
Turn right onto West Jefferson Street
1572 ft · 52 sec · West Jefferson Street
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21
Turn left onto Joliet Street
53 m · 7 sec · Joliet Street
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22
Turn right
83 m · 20 sec
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23
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Assumption and Joliet.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 74 West
Take the exit slight right toward I 74 West, US 51 North: Peoria, Rockford
95.2 mi · 01h 43m
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.
Slight Chance Showers And Thunderstorms then Mostly Sunny leaving Assumption and Sunny near Joliet.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Assumption to Joliet?
The road trip is about 170.9 miles (275.1 km) and usually takes 03h 23m 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?
Towanda is a useful midpoint, sitting about 85.5 miles from Assumption and 85.4 miles from Joliet.
How much longer is the road route than the straight-line distance?
The direct path is about 147.5 miles (237.4 km), while the road route adds roughly 23.4 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 10:12 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.74 one way or $45.48 round trip. Estimated CO2 is about 53.6 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Showers And Thunderstorms then Mostly Sunny around Assumption and Sunny near Joliet.
Stop Ideas Near Towanda
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City Hall - Town of Normal
City of Bloomington, Illinois
Bloomington Finance Department
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Towanda.
Uptown Station
Pontiac station
Lincoln
Peoria, Illinois
Flight Path Map
This map shows the direct air route between Assumption and Joliet. Straight-line distance: 147.51 mi (237.4 km).
#1 Assumption
City in Christian County, Illinois, United States
| Population | 1,056 |
| Coordinates | 39.5203200, -89.0489700 |
| Altitude | 197 |
| Country | United States |
#2 Joliet
The second most populous city in Will County, Illinois.
| Population | 85,583 |
| Coordinates | 41.5251900, -88.0834000 |
| Altitude | 165 |
| Country | United States |
End: Joliet (-88.0834, 41.52519)
Estimated Travel Time
Distance: 275 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 41m |
| 40 mph (64.37 km/h) | 04h 16m |
| 50 mph (80.47 km/h) | 03h 25m |
| 60 mph (96.56 km/h) | 02h 50m |
| 70 mph (112.65 km/h) | 02h 26m |
| 80 mph (129 km/h) | 02h 07m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $22.74 | $45.48 |
| Mid-grade | $4.25 | $25.65 | $51.29 |
| Premium | $4.65 | $28.06 | $56.13 |
| Diesel | $5.30 | $31.98 | $63.97 |
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.