How do i know if i burn more calories than i eat, female and i eat 1500 calorie and do hit 3/4 times a week, do i have to burn 1500/2000 at the gym ?

Weight, diet: Weight typically is a math equation calories in + calories used= cal stored or burned (excess or deficit ave 3500 per pound.). Now that doesn't mean skip 3 days of food... Your body can be crafty... Too little calories, ur body gets smart ; better at storing fat from any piec of lettuce ; cracker u are trying to subsist on. Best... More output than in. Well rounded lower fats.