Illinois to Wisconsin

Distance from Chicago to Green Bay

Straight-line distance

186.1mi

Chicago, IL and Green Bay, WI are 186.1 miles (299.5 km) apart in a straight line. From Chicago, the shortest path starts out heading N (355°).

kilometers
299.5
nautical miles
161.7
heading from Chicago
355° N
heading from Green Bay
175° S
ChicagoGreen Bay

Orange line: great-circle path · ring: midpoint · thin lines: county borders

How far Chicago is from Green Bay

The great-circle distance between the Census internal points of Chicago and Green Bay is 186.1 miles, 299.5 km or 161.7 nautical miles. That is the shortest path over the Earth's surface, computed with the haversine formula on a sphere with the mean Earth radius, 6,371.0 km. A course held on one compass bearing (a rhumb line) would be 186.1 miles, practically the same at this range.

Measurements

Miles
186.1
Kilometers
299.5
Nautical miles
161.7
Bearing from Chicago
355.4° N
Bearing arriving at Green Bay
355.2°
Bearing from Green Bay
175.2° S

Halfway between Chicago and Green Bay

The great-circle midpoint is at 43.179349, -87.832433 (43°10'45.66"N 87°49'56.76"W). The nearest incorporated place of 1,000 or more people is Bayside, WI, with 4,338 residents, 3.5 miles from the midpoint. To find towns near the midpoint of any two places, use the halfway tool.

Time zones and daylight

Both use America/Chicago, so there is no time difference. On June 21, Chicago gets 15 h 13 min of daylight and Green Bay 15 h 33 min; on December 21, 9 h 08 min and 8 h 49 min. Green Bay is 2.68° farther north, so it has the longer summer days and the shorter winter ones.

Population compared

Chicago has 25.6 times the population of Green Bay. From July 2020 to July 2024, Chicago changed by -0.9% and Green Bay by -0.9%. The trip crosses from Illinois into Wisconsin.

  1. 01Chicago, IL2,721,308 (-0.9%)
  2. 02Green Bay, WI106,311 (-0.9%)
July 1, 2024 population and change since July 2020, Census Vintage 2024.

Questions people ask

How far is Chicago from Green Bay?

186.1 miles, 299.5 km or 161.7 nautical miles along the great circle between the two Census internal points. Road distance is longer.

Which direction is Green Bay from Chicago?

N. The great-circle path leaves Chicago on a bearing of 355.4° and arrives at Green Bay on 355.2°. The return trip starts on 175.2°.

What is halfway between Chicago and Green Bay?

The midpoint is at 43.179349, -87.832433. The nearest incorporated place of 1,000+ is Bayside, WI, 3.5 miles from it.

Is there a time difference between Chicago and Green Bay?

Both use America/Chicago, so there is no time difference.

Which is bigger, Chicago or Green Bay?

Chicago, with 2,721,308 residents in July 2024 against 106,311 for Green Bay, 25.6 times as many.

Sources and data as of

Data as of: Census 2024 Gazetteer internal points and Vintage 2024 estimates; time zones from Open-Meteo.

  1. 01Census 2024 Gazetteer, places
  2. 02Census Vintage 2024 subcounty population estimates
  3. 03SunCalc library (Vladimir Agafonkin), algorithms after Jean Meeus
  4. 04IANA time zone database (clock times and daylight saving rules)

How every number is computed: methodology. Spotted a wrong figure? Report an error.