The Truth behing BMR?

Hi guys, I've been going out of my mind trying to figure out how my BMR can help me with my weight loss plan, and what is in the first place. I've tried about 10 difference websites, each one calculates a different BMR for me ranging from 1200 to 2000! i burn 400-500 cals daily with my excercise routine and i eat about 1300 cals a day, am i creating a big enough deficit going by both figures of the BMR to lose weight?
HELP please!

Wed. Apr 1, 11:45am

Related Content: How To Lose Weight- The Basics Weight Watchers Points System The Fat Smash Diet The Eat To Live Diet The Beck Diet Solution How To Get The Motivation To Lose Weight		How To Be Successful Using PEERtrainer How To Burn Fat Online Weight Loss Support- How It Works Does Green Tea Help You Lose Weight? Tips On Using PEERtrainer Visit The PEERtrainer Community Diet and Fitness Resources
Fitness Weight Watchers Meetings Learning To Inspire Others: You Already Are Writing Down Your Daily Workouts Spending Money On A Personal Trainer? How I Became A Marathon Runner		Preventive Health How To Prevent Injuries During Your Workout Flu Season: Should You Take The Flu Shot? Are You Really Ready To Start PEERtrainer? Super Foods That Can Boost Your Energy Reversing Disease Through Nutrition
New Diet and Fitness Articles: Weight Watchers Points Plus How To Adjust Your Body To Exercise New: Weight Watchers Momentum Program New: PEERtrainer Blog Archive Review Of The New Weight Watchers Momentum Program		Weight Loss Motivation by Joshua Wayne: Why Simple Goal Setting Is Not Enough How To Delay Short Term Gratification How To Stay Motivated How To Exercise With A Busy Schedule
Real World Nutrition and Fitness Questions Can Weight Lifting Help You Lose Weight? Are Protein Drinks Safe? Nutrition As Medicine?		Everyday Weight Loss Tips How To Eat Healthy At A Party How To Eat Out And Still Lose Weight The Three Bite Rule Tips On How To Stop A Binge