NFL Calculators: Passer Rating, Pythagorean, 2-Point and 4th-Down Tools

Enter a passing line and get the official NFL passer rating (0–158.3), broken into its four components.

Formula: rating = ((a+b+c+d)/6)×100 with a=((CMP/ATT)−.3)×5, b=((YDS/ATT)−3)×.25, c=(TD/ATT)×20, d=2.375−(INT/ATT)×25; each component capped to 0–2.375.

Turn points scored and allowed into an expected win percentage — the number a team’s record tends to regress toward.

Formula: expected win% = PF^2.37 / (PF^2.37 + PA^2.37). The 2.37 exponent is the value commonly fit to NFL scoring.

Compare the expected points of going for two against kicking the PAT, given your own conversion and make rates.

Formula: EV(2-pt) = 2 × conversion%; EV(PAT) = 1 × make%. Recommend the higher expected value. Break-even 2-pt rate = (PAT make%)/2.

A transparent expected-points model built entirely from your inputs. Adjust the conversion, field-goal, and expected-points estimates and the recommendation for Go / Punt / Field Goal updates live. This is a model from your numbers, not league data.

Model (your perspective; opponent points count against you): Go = conv%×(EP convert) + (1−conv%)×(−opp EP fail); FG = fg%×3 + (1−fg%)×(−opp EP miss); Punt = −(opp EP after punt). The win-probability swing shown is a labelled rule-of-thumb scaling of the expected-points edge, not a fitted model.