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NFL QB Rating Calculator

Calculates the NFL quarterback rating.

screenshot

Formula: ((at=((100 * comp / att)-30)*.05)+(bt=(yards/att-3)*.25)+(ct=(td/att)*20)+(dt=2.375-(25*intr/att)))*0 + (max(min(at, 2.375), 0) + max(min(bt, 2.375), 0) + max(min(ct, 2.375), 0) + max(min(dt, 2.375), 0))*100/6

Comp: The number of completed passes.

Att: The number of attempted passes.

Yards: The total passing yards.

TD: The number of touch downs.

Intr: The number of interceptions.

Example 1

Calculate the QB rating for Steve Young's record-setting season in 1994 when he completed 324 of 461 passes for 3,969 yards, 35 touchdowns, and 10 interceptions.

Value Keystrokes Display Description
324 Comp 324.0000 Stores the Comp value.
461 Att 461.0000 Stores the Att value.
3969 Yards 3,969.0000 Stores the Yards value.
35 TD 35.0000 Stores the TD value.
10 Intr 10.0000 Stores the Intr value.
  Rating 112.7937 Calculates Rating.

Example 2

Calculate the Yards required for a Rating of 115.

These keystrokes assume the values from example 1.

 

Value Keystrokes Display Description
115 Rating 115.0000 Stores the Rating value.
  Yards 4,213.1 Calculates the Yards value.

Note the technique used for this complex formula. The four temporary values, at, bt, ct and dt are calculated first and then used in the max/min formula as given in the reference. To see the value of a variable just enter the name of the variable in formula mode. For example, "=f at =" will display the at value of 2.0141.

Reference:

Passer Rating - Wikipedia