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Both calculators run independently — change the inputs on either side to compare results.

NFL Passer Rating Calculator

Calculate NFL passer rating using the official four-component formula based on completion percentage, yards per attempt, touchdown rate, and interception rate. Use it to compare quarterback performance across games, seasons, and eras using the league's longest-standing efficiency metric.

Completions

Attempts

Passing Yards

Touchdowns

Fill in the required fields to see your result.

Sports

Baseball ERA Calculator

Calculate a pitcher's Earned Run Average (ERA) from earned runs allowed and innings pitched. Essential for evaluating pitching performance and comparing pitchers across different workloads or seasons.

Earned Runs

Innings Pitched

Fill in the required fields to see your result.

Key differences

	NFL Passer Rating Calculator	Baseball ERA Calculator
Category	Sports	Sports
Inputs required	4	2
Result	Passer Rating	ERA
What it does	Calculate NFL passer rating using the official four-component formula based on completion percentage, yards per attempt, touchdown rate, and interception rate. Use it to compare quarterback performance across games, seasons, and eras using the league's longest-standing efficiency metric.	Calculate a pitcher's Earned Run Average (ERA) from earned runs allowed and innings pitched. Essential for evaluating pitching performance and comparing pitchers across different workloads or seasons.