# quarterback rating number?

what is the formula to figure out qarterback ratings? and how do they come up with this fomula?

Relevance
• Anonymous

NFL Quarterback Rating Formula

(National Football League)

a = (((Comp/Att) * 100) -30) / 20

b = ((TDs/Att) * 100) / 5

c = (9.5 - ((Int/Att) * 100)) / 4

d = ((Yards/Att) - 3) / 4

a, b, c and d can not be greater than 2.375 or less than zero.

QB Rating = (a + b + c + d) / .06

AFL Quarterback Rating Formula

(Arena Football League)

a = (((Comp/Att) * 100) -30) / 20

b = ((TDs/Att) *100) / (20/3)

c = (9.5 - ((Int/Att) * 100)) / 4

d = ((Yards/Att) - 3) / 4

a, b, c and d can not be greater than 2.375 or less than zero.

QB Rating = (a + b + c + d) / .06

NCAA Quarterback Rating Formula

(National Collegiate Athletic League)

a = (Comp/Att) * 100

b = (TDs/Att) * 100

c = (Int/Att) * 100

d = Yards/Att

QB Rating = a+(3.3*b)-(2*c)+(8.4*d)

The formula is different for NFL, NCAA, and AFL. Most high schools use NCAA formula. Here is a link to a QB Rating Calculator: http://www.primecomputing.com/

• Anonymous