Calories To Lose Weight Calculator

Is burning calories a way To Lose Weight?
I mean, just without keeping track of how many calories I eat, will I be able to go on the treadmill and just lose weight according to what this “Calorie Calculator”(http://www.healthyweightforum.org/eng/calculators/calories-required/) told me to do?
http://www.healthyweightforum.org/eng/calculators/calories-required/
^^ thats the website. in my question the website got messed up sry lol
That is the foolprooff way to lose weight. Remember, though, that dieting without working out your base metabolism will go down and the calculator might be off. If so, the doctor can figure it better for you.