Point Spread/ML conversions- NFL/NCAAF

At Even Odds:

Spread   Prob.  ML equivalent

PK                           100.0

0.5           50.05%   100.2

1              51.08%   104.4

1.5           52.07%   108.6

2              53.00%   112.8

2.5           53.83%   116.6

3              58.60%   141.5

3.5           61.97%   163.0

4              63.48%   173.8

4.5           64.34%   180.5

5              65.46%   189.5

5.5           66.05%   194.6

6              67.78%   210.4

6.5           68.61%   218.5

7              71.84%   255.1

7.5           73.11%   271.9

8              74.24%   288.1

8.5           74.63%   294.1

9              75.27%   304.4

9.5           75.49%   307.9

10            77.96%   353.6

10.5         78.65%   368.5

11            79.89%   397.2

11.5         80.20%   405.0

12            80.85%   422.3

12.5         81.01%   426.6

13            82.42%   468.8

13.5         82.72%   478.7

14            84.86%   560.3

14.5         85.24%   577.4

15            86.03%   615.5

15.5         86.15%   622.2

16            87.04%   671.6

16.5         87.17%   679.6

17            89.08%   815.6

17.5         89.31%   835.6