QB Rating Calculator : Calculate NFL QB Rating using the following formula:

• Completed passes divided by pass attempts. Subtract 0.3, then divide by 0.2
• Passing yards divided by pass attempts. Subtract 3, then divide by 4.
• Touchdown passes divided by pass attempts, then divide by .05.
• Start with .095, and subtract interceptions divided by attempts. Divide the difference by.04.

The sum of each step cannot be greater than 2.375 or less than zero. Add the sum of each step then multiply by 100 and divide by 6.

Completion Percentage Calculator : Calculates NFL QB Completion Percentage using the following formula:

• Completed Passes divided by Pass Attempts