To find the cross street of an avenue address, drop the last figure of the avenue number, divide (÷) the remainder by 2 and add (+) or subtract (-) the number shown below the example:

Example: 934 Third Avenue: 93 ÷ 2 = 46, 46 + 10 = 56th Street

Avenue
1st + 4
2nd + 3
3rd + 10
6th - 12
7th + 12
8th + 9
9th + 13
10th + 13
A, B, C, D + 3
Amsterdam + 59
Columbus + 60
Lexington + 22
Madison + 27
Park + 34
Park South + 8
West End + 59
Fifth Avenue
to 200 + 13
to 400 + 16
to 600 + 18
to 775 + 20
from 775 to 1286,
drop last figure and deduct 18 from remainder

Broadway
to 754 - 0 -
to 858 - 29
to 958 - 25
above 1000 - 31

Central Park West
drop last figure and add 60
West End + 59