Size Table

size   kg/lbs  PPV     size   kg/lbs   PPV      size tons  PPV
-6    3.8/8   -9        1    100/220   1½        8   2.6   12
-5½     5/12  -8½       1½   120/264   2½        8½  3.2   13
-5    6.3/14  -7½       2    160/352   3         9   3.8   13½
-4½   7.5/16  -7        2½   200/440   4½        9½  5.1   14½
-4     10/22  -6        3    240/528   5½       10   6.4   15
-3½  12.5/26  -5½       3½   320/704   6        10½  7.6   16
-3     15/33  -5        4    400/880   7        11  10.2   16½
-2½    20/44  -4        4½   480/1056  7½       11½ 12.8   17½
-2     25/55  -3        5    640/1408  8        12  15.4   18
-1½    30/66  -2½       5½   800/1760  8½       12½ 20.5   19
-1     40/88  -1½       6    960/2112  9        13  25.6   19½
-½     50/110 -1        6½  1280/2816 10        13½ 30.7   20½
 0     60/132  0        7   1600/3520 10½       14  40.9   21
 ½     80/176  1        7½  1920/3224 11½       14½ 51.2   22