Illinois

Distance from Naperville to Rockford

Straight-line distance

58.2mi

Naperville, IL and Rockford, IL are 58.2 miles (93.6 km) apart in a straight line. From Naperville, the shortest path starts out heading NW (308°).

kilometers
93.6
nautical miles
50.6
heading from Naperville
308° NW
heading from Rockford
127° SE
NapervilleRockford

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

How far Naperville is from Rockford

The great-circle distance between the Census internal points of Naperville and Rockford is 58.2 miles, 93.6 km or 50.6 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 58.2 miles, practically the same at this range.

Measurements

Miles
58.2
Kilometers
93.6
Nautical miles
50.6
Bearing from Naperville
307.6° NW
Bearing arriving at Rockford
307.0°
Bearing from Rockford
127.0° SE

Halfway between Naperville and Rockford

The great-circle midpoint is at 42.005132, -88.610943 (42°00'18.47"N 88°36'39.39"W). The nearest incorporated place of 1,000 or more people is Sycamore, IL, with 18,968 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, Naperville gets 15 h 13 min of daylight and Rockford 15 h 16 min; on December 21, 9 h 09 min and 9 h 05 min. Rockford is 0.51° farther north, so it has the longer summer days and the shorter winter ones.

Population compared

Naperville has 1.0 times the population of Rockford. From July 2020 to July 2024, Naperville changed by +2.5% and Rockford by -0.8%. Both are in Illinois.

  1. 01Naperville, IL153,124 (+2.5%)
  2. 02Rockford, IL147,486 (-0.8%)
July 1, 2024 population and change since July 2020, Census Vintage 2024.

Questions people ask

How far is Naperville from Rockford?

58.2 miles, 93.6 km or 50.6 nautical miles along the great circle between the two Census internal points. Road distance is longer.

Which direction is Rockford from Naperville?

NW. The great-circle path leaves Naperville on a bearing of 307.6° and arrives at Rockford on 307.0°. The return trip starts on 127.0°.

What is halfway between Naperville and Rockford?

The midpoint is at 42.005132, -88.610943. The nearest incorporated place of 1,000+ is Sycamore, IL, 3.5 miles from it.

Is there a time difference between Naperville and Rockford?

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

Which is bigger, Naperville or Rockford?

Naperville, with 153,124 residents in July 2024 against 147,486 for Rockford, 1.0 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.