How far is Frankfort, IL from Crystal Lake, IL?
The driving distance from Frankfort, IL to Crystal Lake, IL is about 356.5 miles (573.8 km), with a travel time of about 05h 48m by car.
- The straight-line flight distance is about 301.6 miles (485.3 km).
- For a round trip, plan for roughly 11h 37m 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 05h 48m.
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.
The most populous city in Champaign County, Illinois.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Cloudy then Slight Chance Showers And Thunderstorms
Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between Frankfort and Crystal Lake.
Turn-by-Turn Driving Directions
Step-by-step road directions between Frankfort and Crystal Lake.
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1
Start on East Saint Louis Street
30 m · 9 sec · East Saint Louis Street
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2
Turn left onto North Benton Road
788 ft · 37 sec · North Benton Road
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3
Turn right onto East Main Street
2.3 mi · 4 min · East Main Street
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4
Enter the roundabout and take exit 1 toward the route
6 m · 1 sec
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5
Exit the roundabout
1714 ft · 42 sec
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6
Merge slight left onto Ken Gray Expressway
31 mi · 34 min · Ken Gray Expressway
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7
Keep slight right to continue on Ken Gray Expressway
67.5 mi · 1 hr 13 min · Ken Gray Expressway
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8
Keep slight left to continue on I 57 North: Chicago
185.5 mi · 3 hr 21 min
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9
Take the exit slight right toward IL 83, I 294 Toll North: Sibley Boulevard, 147th Street, Wisconsin
1718 ft · 33 sec
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10
Keep slight right to continue on I 294 Toll North: Wisconsin
1.8 mi · 3 min
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11
Merge slight left onto Tri-State Tollway
20.8 mi · 26 min · Tri-State Tollway
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12
Keep slight left to continue on Tri-State Tollway
1.2 mi · 1 min · Tri-State Tollway
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13
Take the exit slight right toward I 290 West, I 294 North, I 290 East: Rockford, Milwaukee, Chicago
98 m · 8 sec · Tri-State Tollway
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14
Keep slight left to continue on Tri-State Tollway
1.3 km · 2 min · Tri-State Tollway
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15
Keep slight left to continue on I 290 West: Rockford
1.4 km · 2 min
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16
Keep slight left to continue on Saint Charles Road West
1751 ft · 43 sec
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17
Merge slight left
13.4 mi · 17 min
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18
Keep slight left
2.2 mi · 3 min
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19
Take the exit slight right toward Kirchoff Road
1873 ft · 50 sec
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20
Turn left onto Kirchoff Road
1.3 km · 2 min · Kirchoff Road
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21
Turn right onto South Plum Grove Road
1.9 mi · 4 min · South Plum Grove Road
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22
Turn left onto West Colfax Street
1.6 mi · 3 min · West Colfax Street
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23
Continue on Sterling Avenue
136 m · 20 sec · Sterling Avenue
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24
Turn left onto West Northwest Highway
15.2 mi · 24 min · West Northwest Highway
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25
Turn right onto South Main Street
1 mi · 2 min · South Main Street
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26
Turn left onto East Crystal Lake Avenue
8 m · 1 sec · East Crystal Lake Avenue
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27
Arrive at your destination
0 m · 1 sec · East Crystal Lake Avenue
Car Route Details
A richer read on the saved driving route between Frankfort and Crystal Lake.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 57 North
Keep slight left to continue on I 57 North: Chicago
185 mi · 03h 21m
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.
Partly Cloudy then Slight Chance Showers And Thunderstorms leaving Frankfort and Showers And Thunderstorms Likely near Crystal Lake.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Frankfort to Crystal Lake?
The road trip is about 356.5 miles (573.8 km) and usually takes 05h 48m 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?
Champaign is a useful midpoint, sitting about 174.9 miles from Frankfort and 181.7 miles from Crystal Lake.
How much longer is the road route than the straight-line distance?
The direct path is about 301.6 miles (485.3 km), while the road route adds roughly 54.9 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 5:22 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $47.44 one way or $94.88 round trip. Estimated CO2 is about 111.8 kg one way.
What should you check before leaving?
Before you leave, expect Partly Cloudy then Slight Chance Showers And Thunderstorms around Frankfort and Showers And Thunderstorms Likely near Crystal Lake.
Stop Ideas Near Champaign
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 Champaign.
Illinois Terminal
Rantoul
Danville, Illinois
Mattoon station
Flight Path Map
This map shows the direct air route between Frankfort and Crystal Lake. Straight-line distance: 301.53 mi (485.27 km).
#1 Frankfort
County seat city in Franklin County, Kentucky, USA and Kentucky federated state capital city
| Population | 19,411 |
| Coordinates | 37.9000500, -88.9022900 |
| Altitude | 145 |
| Country | United States |
#2 Crystal Lake
City located in McHenry County, Illinois, USA
| Population | 39,642 |
| Coordinates | 42.2411300, -88.3162000 |
| Altitude | 279 |
| Country | United States |
End: East Crystal Lake Avenue (-88.316198, 42.241185)
Estimated Travel Time
Distance: 574 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 52m |
| 40 mph (64.37 km/h) | 08h 54m |
| 50 mph (80.47 km/h) | 07h 07m |
| 60 mph (96.56 km/h) | 05h 56m |
| 70 mph (112.65 km/h) | 05h 05m |
| 80 mph (129 km/h) | 04h 26m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $47.44 | $94.88 |
| Mid-grade | $4.25 | $53.50 | $107.01 |
| Premium | $4.65 | $58.55 | $117.09 |
| Diesel | $5.30 | $66.72 | $133.45 |
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 15, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.