Could you Please please help me?

what is the mathematical equation of finding ones carbon footprint better yet how do i FIND MY CARBON AND/OR MY ECOLOGICAL FOOTPRINT i NEED A MATHEMATICAL EXPRESSION NOT A WEBSITE WITH A Calculator and if you don't mind I kinda need it before 7 am tomorrow sorry such short notice and I am really desperate I don't even need a reliable website! It would be nice but not necessary PLEASE GET BACK TO ME!