Manhattan address algorithm

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The Manhattan address algorithm refers to the formulas used to estimate the closest east–west cross street for building numbers on north–south avenues in the New York City borough of Manhattan.[1][2]

Algorithm[edit]

To find the approximate number of the closest cross street, divide the building number by a divisor (generally 20) and add (or subtract) the "magic number" from the table below:

Street/Avenue Building No.  Divisor Magic No.  (unrounded result)
Avenue A All
Avenue B All
Avenue C All
Avenue D All
1st Ave All
2nd Ave All
3rd Ave All
4th Ave All
5th Ave 63–108 14.15–16.4
5th Ave 109–199 18.45–23
5th Ave 200–399 26.05–36
5th Ave 400–599 38.05–48
5th Ave 600–774 50.05–58.75
5th Ave 775–1286 59.6–110.6
5th Ave 1287–1499 110–120
5th Ave Above 1500 124+
6th Ave All
7th Ave 1–1800 12.05–102
7th Ave Above 1800 110+
8th Ave All
9th Ave All
10th Ave All
11th Ave All
Amsterdam Ave All
Audubon Ave All
Ave of the Americas All
Columbus Ave All [3]
Broadway 1–754 (few numbered streets south of 8th)
Broadway 756–846 8.8–13.3
Broadway 847–953 17.35–22.65
Broadway Above 953 16.65+
Central Park West All
Convent Ave All
East End Ave All
Edgecombe Ave All
Ft. Washington Ave All
Lenox Ave All
Lexington Ave All
Madison Ave All
Manhattan Ave All
Park Ave All
Park Ave South All
Pleasant Ave All
Riverside Drive 1–567 72.1–128.7
Riverside Drive Above 567 134.7+
St. Nicholas Ave All
Vanderbilt Ave All
Wadsworth Ave All
West End Ave All
York Ave All

See also[edit]

References[edit]