Street Locator Algorithm

Although the graphic locator does a terrific job, it's not all that convenient to carry a computer around in your back pocket. Here's how you can figure out the cross streets given the building address and street or avenue.

Finding the street from a number and avenue:

To find the approximate cross street, take the building number and divide by 20; then add (or subtract) the magic number from the following table. (For example, 660 Madison Avenue would be 660/20=33 plus the Madison Avenue index from the table below (+27), 33+27=60th Street)

Avenue A....+3
Avenue B....+3
Avenue C....+3
Avenue D....+3

1st Ave +3
2nd Ave +3
3rd Ave +10
4th Ave +8
6th Ave -12
8th Ave +9
9th Ave +13
10th Ave +14
11th Ave +15

Amsterdam Ave +59
Audubon Ave +165
Ave of the Americas -12
Columbus Ave +59(+60)
Convent Ave +127
Edgecomb Ave +134
Ft. Washington Ave +158
Lenox Ave +110
Lexington Ave +22
Madison Ave +27
Manhattan Ave +100
Park Ave +34
Park Ave South +8
Pleasant Ave +101
St. Nicholas Ave +110
Wadsworth Ave +173
West End Ave +59
York Ave +4
Special Cases
5th Avenue:
63-108 +11
109-200 +13
201-400 +16
401-600 +18
601-775 +20
For 776-1286, divide by 10
(instead of 20) and then subtract 18

7th Avenue:
1-1800 +12
Above 1800 +20

More Special Cases
Broadway:
1-754 (south of 8th street, not numbered streets)
756-846 -29
847-953 -25
Above 953 -31

Central Park West:
Divide building number by 10 and add 60

Riverside:
Divide building number by 10 and then add as follows:
1-567 +72
Above 567 +78