How far is Grayslake, IL from Quincy, IL?
Distance by Flight
Shortest distance between Grayslake and Quincy is 241.66 miles (388.91 km).
Flight distance from Grayslake, IL to Quincy, IL is 241.66 miles. Estimated flight time is 00 hours 39 minutes.
It takes 00 hours 35 minutes to travel from Grayslake to Quincy with an airplane (average speed of 550 miles).
Driving distance
The driving distance from Grayslake, Illinois to Quincy, Illinois is: 328.8 miles (529.16 km) by car.
Driving from Grayslake to Quincy will take approximately 05 hours 32 minutes.
#1 Grayslake
Village in Lake County, Illinois, United States
| Population | 20584 |
|---|---|
| GPS Coordinates | 42°20'40"N 88°2'30"W |
| Latitude | 42.3444700 |
| Longitude | -88.0417500 |
| Altitude | 239 |
| Country | United States |
#2 Quincy
County seat of Adams County, Illinois, United States
| Population | 39589 |
|---|---|
| GPS Coordinates | 39°56'8"N 91°24'36"W |
| Latitude | 39.9356000 |
| Longitude | -91.4098700 |
| Altitude | 173 |
| Country | United States |
Ending point in Quincy: Broadway Street (-91.40987,39.935697)
Estimated Travel Time Between Grayslake and Quincy
The distance between Grayslake and Quincy is 529 km if you choose to drive by road. You can go 05 hours 52 minutes if you drive your car at an average speed of 90 kilometers / hour. For different choices, please review the avg. speed travel time table on the below.
There is no time difference between Grayslake and Quincy. The current time is 13:57:31.
| Average Speed | Travel Time |
|---|---|
| 30 mph (48.3 km/h) | 10 hours 57 minutes |
| 40 mph (64.37 km/h) | 08 hours 13 minutes |
| 50 mph (80.47 km/h) | 06 hours 34 minutes |
| 60 mph (96.56 km/h) | 05 hours 28 minutes |
| 70 mph (112.65 km/h) | 04 hours 41 minutes |
| 75 mph (120.7 km/h) | 04 hours 23 minutes |
| 80 mph (128.75 km/h) | 04 hours 06 minutes |
Gas Consumption
A car with a fuel efficiency of 8.3 l/100 km will need 43.92 liters (11.6 gallon) of gas to cover the route between Grayslake and Quincy.
The estimated cost of gas to go from Grayslake to Quincy is $41.85 (diesel $49.89).
Illinois gas prices.
| Gasoline | Mid Grade | Premium | Diesel | |
|---|---|---|---|---|
| Gallon | $3.61 | $4.11 | $4.55 | $4.3 |
| Total | $41.85 | $47.71 | $52.8 | $49.89 |
Take a look at our Gas Cost Calculator feature. It will figure out how much it will cost to drive this particular distance.
The average gas price (in Illinois ) per gallon of daily gas for calculations is $3.607 (Diesel $4.300) /gallon. Last changed prices on April 27, 2024.
How did we calculate the distance?
The place names are translated into coordinates to approximate the distance between Grayslake and Quincy (latitude and longitude). Cities, states, and countries each have their own regional center. The Haversine formula is used to measure the radius.
