Thanks. A little confusing when other sites say I'd need 1700 +/- to maintain my weight. How is the BMR different than what those sites are telling me?
What other sites? No doubt they will all give you marginally different numbers. If there is one thing very exacting about calories, it's that they are never exact, neither the calories you burn or the calories in food. People burn calories at different rates such as a young person verses an older person, an active person verses a sedentary person. Nutrition labels required on food are allowed to be erroneous by 20% or more and that includes calories. Some even exceed these limits which are FDA guidelines, but no one bothers to check. The FDA even allows outright lying.
Next time you are in a store, look at the nutrition label on a can of cooking spray. It will no doubt say, "0 calories, 0 fat per serving". Of course, a serving is 1/4 or 1/3 a second spray and there are over a thousand servings per can. Yet the cooking spray is made up of a cooking oil (usually canola or vegetable oil) and a propellant. No, they have not invented a 0 calorie cooking oil. But the FDA says if the calories per serving is less than 5, the company can say it has '0' calories. The FDA says if the fat content is under .5 grams per serving, the company can say '0' grams of fat. And so the company divides its serving into small enough sizes to fall under these limits. Now they can lie with FDA approval. (I love the people who spray second after second of '0' calorie butter flavored cooking oil on their popcorn and say, "...but it's 0 calories." They are, in fact, getting a tad less than 5 calories per 1/4 or 1/3 second. If 5 seconds, that can be nearly 100 calories and 10 grams of fat. )
I guess what I am trying to say is when it comes to calories, you can get numbers all over the place. One person might jog a mile and say he burned 100 calories while another would say be burned 500 calories. Another person might put a small smear of butter on a bagel and say, "That's so tiny, it doesn't count." while another might say, "That's 11 grams of 100 calories of mostly fat." It's all in one's interpretation.
In general: calories in < calories burned, you lose weight. Calories in > calories burned you gain weight. The principle is simple, the numbers computed aren't.