## Passer Rating Calculator

To use the form below, input passing statistics values in the corresponding boxes. Then, select which passing rating formula you wish to calculate.

### 40nDX™

"40 Index" (stylized as "40nDX") is a proprietary rating formula developed by Ross Wheatley with the intention to improve upon the traditional passer rating formula. The traditional formula was developed using antiquated and/or arbitrary performance standards. 40nDX reformulates the traditional convention by setting a more appropriate standard of excellent based on the 12 historic seasons in which a quarterback achieved 40 or more touchdowns thrown (hence the 40). A perfect 40nDX rating is 100.

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