Michigan

Distance from Ann Arbor to Detroit

Straight-line distance

33.0mi

Ann Arbor, MI and Detroit, MI are 33.0 miles (53.0 km) apart in a straight line. From Ann Arbor, the shortest path starts out heading ENE (77°).

kilometers
53.0
nautical miles
28.6
heading from Ann Arbor
77° ENE
heading from Detroit
257° WSW
Ann ArborDetroit

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

How far Ann Arbor is from Detroit

The great-circle distance between the Census internal points of Ann Arbor and Detroit is 33.0 miles, 53.0 km or 28.6 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 33.0 miles, practically the same at this range.

Measurements

Miles
33.0
Kilometers
53.0
Nautical miles
28.6
Bearing from Ann Arbor
76.8° ENE
Bearing arriving at Detroit
77.3°
Bearing from Detroit
257.3° WSW

Halfway between Ann Arbor and Detroit

The great-circle midpoint is at 42.329979, -83.416817 (42°19'47.93"N 83°25'0.54"W). The nearest incorporated place of 1,000 or more people is Westland, MI, with 82,745 residents, 2.0 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/Detroit, so there is no time difference. On June 21, Ann Arbor gets 15 h 17 min of daylight and Detroit 15 h 17 min; on December 21, 9 h 05 min and 9 h 04 min. The two sit at nearly the same latitude, so their day lengths match closely all year.

Population compared

Detroit has 5.3 times the population of Ann Arbor. From July 2020 to July 2024, Ann Arbor changed by -0.7% and Detroit by +1.1%. Both are in Michigan.

  1. 01Ann Arbor, MI122,925 (-0.7%)
  2. 02Detroit, MI645,705 (+1.1%)
July 1, 2024 population and change since July 2020, Census Vintage 2024.

Questions people ask

How far is Ann Arbor from Detroit?

33.0 miles, 53.0 km or 28.6 nautical miles along the great circle between the two Census internal points. Road distance is longer.

Which direction is Detroit from Ann Arbor?

ENE. The great-circle path leaves Ann Arbor on a bearing of 76.8° and arrives at Detroit on 77.3°. The return trip starts on 257.3°.

What is halfway between Ann Arbor and Detroit?

The midpoint is at 42.329979, -83.416817. The nearest incorporated place of 1,000+ is Westland, MI, 2.0 miles from it.

Is there a time difference between Ann Arbor and Detroit?

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

Which is bigger, Ann Arbor or Detroit?

Detroit, with 645,705 residents in July 2024 against 122,925 for Ann Arbor, 5.3 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.