Tdee calculation different to mfp?

loulouowens

Hi all

Can someone shed some light on this for me?

My tdee is 2102 if its 500kcal for 1lb and i want to lose 1.5lb aweek that should be 750kcal of my tdee ehich would give me 1352 per day. But mfp has given me 1440 per day?

Im 5ft 9" 221lb female aged 37 mostly sedentary.

Thanks guys x

janejellyroll

Yes, they're different.

MFP uses NEAT, which is based on what you burn not counting intentional exercise. You then log your exercise and eat back those calories.

TDEE is based on your total daily energy expenditure, which includes intentional exercise.

Ready2Rock206

MFP uses NEAT not TDEE. Your two numbers are so very close though - why not just pick one and try it out? After a few weeks if you need to adjust you can.

xaryo

Seems close enough for me.
Ever heard of "gauge imprecision"?
Aim for the middle.

Aaron_K123

MFP uses NEAT not TDEE. It considers exercise to be seperate which is why you have to log exercise.

Not sure how you calculated your TDEE as 2102 and not sure what exercises you are adding on top of your MFP NEAT so not sure how its measure of your TDEE compares.

You are right on math though, 1.5 pounds a week would be a deficit of 750kcal per day off your TDEE.

cwolfman13

MFP isn't a TDEE calculator, it is a NEAT calculator so it doesn't take into account your exercise when choosing an activity level, just your day to day.

If what you're saying is that MFP is giving you a weight loss goal of 1140 vs 1352, that would make sense too. All of these calculators use slightly different algorithms...and it doesn't really matter...it's not like you actually need exactly XXXX calories. These calculators are just meant to give you a reasonably good starting point...from there, it's up to you to look at the trends and determine if they are in line with your goals and make adjustments as necessary. None of these calculators are going to give you some kind of precise calorie intake...because that doesn't really exist.

amusedmonkey

Yeah, I've noticed a slight discrepancy in the MFP calculation. They are supposedly using the Mifflin St Jeor formula and the conventional 1.2 multiplier for sedentary doesn't apply perfectly. It's more like a 1.25 multiplier.