Wild Hare & Calories

I had a wild hare this morning, so I just recalculated my calorie needs for Insanity.  That's what happens when my alarm goes off unexpectedly and I nearly launch myself outta bed onto the floor in surprise.  Heh.

Anyway,

• I'm 5'9", or 69 inches tall,
• (close enough to) 33 years old (25 days away baby! Whoo-hoo!),
• and weigh 175 lbs this morning

So, first I find my Basal Metabolic Rate (BMR) - the amount of calories I need to live if I'm just chillin' on the couch all day.


For men it's -
66 + ( 6.23 x weight in pounds ) + ( 12.7 x height in inches ) - ( 6.8 x age in year )






But I'z a lady, so for females it's - 
655 + (4.35 x weight in pounds) + (4.7 x height in inches) - (4.7 x age in years) =

655 + (4.35 x 175) + (4.7 x 69) - (4.7 x 33) =

655 + 761.25 + 324.3 - 155.1 = 1585.45 = numbers of calories I need to chill on couch all day.


Then I use the Harris Benedict Equation to estimate the number of calories I need while I'm on Insanity.  I'd rather err on the side of having to add calories later rather than removing calories.  In the Insanity Elite Nutrition Guide they suggest multiplying my BMR by either 1.55 for "moderately active" (ha!) or 1.7 for "very active."  Since I spend the rest of my day at a desk, I chose 1.55 for moderate.

So 1585.45 x 1.55 = 2457.4475 calories needed to maintain my weight while on Insanity.

But I want to lose pounds, so I build in a 500 calorie deficit each day

2457.4475 - 500 = 1957.4475 = approx 1957 calories needed a day

So 1957 is the calorie goal I'm putting into My Fitness Pal (MFP).  Then I'll ignore the calories burned by my workout according to MFP and just aim for the 1957 unless I do some workout beyond Insanity that day.