Who has calculated their TDEE using their MFP data

Dewymorning
Dewymorning Posts: 762 Member
in Health and Weight Loss
and how does it compare with the online estimates.

I just did some calculations yesterday using the last 5 weeks of data from MFP, and I calculated that my TDEE is around 2,330 calories a day.

My online estimates (from IIFYM.com, if I select exercising 6 times a week) are

Muffin-St Joer: 2,115
Harris-Benedict: 2.250
Activity level: 2,128
Katch-McCardle: 2017 (this assumes my BF% estimate is correct)

The way I have MFP set up right now it estimates my TDEE to be 2,230.

Wondering how it compares for other people.

Replies

  • Dewymorning
    Dewymorning Posts: 762 Member
    I just played around with the Katch-McCardle estimate, and the BF% which comes out as close to my estimate from my MFP data is at 6 percentage points lower than what the electro-scale said my BF% was.
  • Dewymorning
    Dewymorning Posts: 762 Member
    No one?
  • LTKeegan
    LTKeegan Posts: 354 Member
    I just played around with the Katch-McCardle estimate, and the BF% which comes out as close to my estimate from my MFP data is at 6 percentage points lower than what the electro-scale said my BF% was.

    How did you calculate this?
  • kagevf
    kagevf Posts: 509 Member
    did you put your goal weight or current weight on iifym.com?
  • Lea_8D
    Lea_8D Posts: 106 Member
    I just did that the other day.

    On IIFYM TDEE was estimated at 1708 on one method and 1647 using the one where you put in your BF% (estimated by my scale)

    Using 47 days of MFP data, my calculated TDEE was 1671. So, pretty close!
  • Dewymorning
    Dewymorning Posts: 762 Member
    did you put your goal weight or current weight on iifym.com?

    Current weight.
  • Dewymorning
    Dewymorning Posts: 762 Member
    I just did that the other day.

    On IIFYM TDEE was estimated at 1708 on one method and 1647 using the one where you put in your BF% (estimated by my scale)

    Using 47 days of MFP data, my calculated TDEE was 1671. So, pretty close!

    Yours is much closer than mine. Maybe I fidget a lot.
  • Dewymorning
    Dewymorning Posts: 762 Member
    I just played around with the Katch-McCardle estimate, and the BF% which comes out as close to my estimate from my MFP data is at 6 percentage points lower than what the electro-scale said my BF% was.

    How did you calculate this?

    I just kept lowering the BF% until the TDEE was the same as my estimate from my data.

    Not saying that it is an accurate way to calculate BF%.

    It was just because of interest.
  • LTKeegan
    LTKeegan Posts: 354 Member
    Yeah, I just adapted that formula. I got 3 different results:

    Using BMR from MFP I'm 25% bf
    Using BMR from IIFYM I'm 21% bf
    Using BMR from scoobys workshop I'm 20% bf

    And I may need to up my calories!


    Also, if anyone wants the formula solved for lean body mass it is:


    (BMR-370)/21.6= kilograms of lean body mass


    Then you'll multiply the kg*2.2 to get weight in lbs and do (1-lean body mass in lbs)/weight in lbs. that's the "estimated" %body fat
  • kagevf
    kagevf Posts: 509 Member
    input your goal weight not your current weight.
  • LTKeegan
    LTKeegan Posts: 354 Member
    input your goal weight not your current weight.

    I'm putting in my current BMR and I want to know my current % body fat. Why would I use my goal weight to figure out what my current % body fat is? That's dumb.
  • LTKeegan
    LTKeegan Posts: 354 Member
    UGH now I think I'm doing something wrong with my weight loss.

    I just averaged all of my calories eaten for the last month and I got an average of 1836.5. I've been losing an average of 1.5lbs/wk. so that's 5250 deficit per week. Which is 750 deficit per day. So my TDEE is 2586.5.

    That seems CRAZY HIGH!! I can only get close to that number of IIFYM By saying I work out 2x per day!! I work out 3-5 times per week for 1-2 hours. Am I doing something wrong?
  • Dewymorning
    Dewymorning Posts: 762 Member
    input your goal weight not your current weight.

    :huh:
  • Dewymorning
    Dewymorning Posts: 762 Member
    Yeah, I just adapted that formula. I got 3 different results:

    Using BMR from MFP I'm 25% bf
    Using BMR from IIFYM I'm 21% bf
    Using BMR from scoobys workshop I'm 20% bf

    And I may need to up my calories!


    Also, if anyone wants the formula solved for lean body mass it is:


    (BMR-370)/21.6= kilograms of lean body mass


    Then you'll multiply the kg*2.2 to get weight in lbs and do (1-lean body mass in lbs)/weight in lbs. that's the "estimated" %body fat

    That puts my body fat % at about 4 percentage points lower than what the scale said.

    But it is not based on any evidence apart from my height, weight, age and gender because I do not know what my actual BMR is.
  • melissamarah
    melissamarah Posts: 168 Member
    Sorry, I've got nothing to input here, but I'm curious. I'm thinking of figuring out my TDEE, too.
  • Dewymorning
    Dewymorning Posts: 762 Member
    UGH now I think I'm doing something wrong with my weight loss.

    I just averaged all of my calories eaten for the last month and I got an average of 1836.5. I've been losing an average of 1.5lbs/wk. so that's 5250 deficit per week. Which is 750 deficit per day. So my TDEE is 2586.5.

    That seems CRAZY HIGH!! I can only get close to that number of IIFYM By saying I work out 2x per day!! I work out 3-5 times per week for 1-2 hours. Am I doing something wrong?

    Yeah, sounds similar to me. You could increase you calories closer to 2,000 calories if you want to. It would slow down your weight loss, but it might be 'healthier'.

    Plus, you get to eat more. That's like a super bonus. :laugh:
  • LTKeegan
    LTKeegan Posts: 354 Member
    UGH now I think I'm doing something wrong with my weight loss.

    I just averaged all of my calories eaten for the last month and I got an average of 1836.5. I've been losing an average of 1.5lbs/wk. so that's 5250 deficit per week. Which is 750 deficit per day. So my TDEE is 2586.5.

    That seems CRAZY HIGH!! I can only get close to that number of IIFYM By saying I work out 2x per day!! I work out 3-5 times per week for 1-2 hours. Am I doing something wrong?

    Yeah, sounds similar to me. You could increase you calories closer to 2,000 calories if you want to. It would slow down your weight loss, but it might be 'healthier'.

    Plus, you get to eat more. That's like a super bonus. :laugh:

    Totes a bonus. If you get similar numbers, and since this is working, I'm gonna stick withy current system. Next plateau I'm eating all the calories (not actually)
  • kagevf
    kagevf Posts: 509 Member
    oh! my bad! i thought you want to lose more fats...stupid me cant read!
  • Dewymorning
    Dewymorning Posts: 762 Member
    oh! my bad! i thought you want to lose more fats...stupid me cant read!

    Actually, after your suggestion I looked up what my TDEE will be at my 'goal' weight and it is around what my current goal is.

    Happy?

    :P
  • Lea_8D
    Lea_8D Posts: 106 Member
    I just did that the other day.

    On IIFYM TDEE was estimated at 1708 on one method and 1647 using the one where you put in your BF% (estimated by my scale)

    Using 47 days of MFP data, my calculated TDEE was 1671. So, pretty close!

    Yours is much closer than mine. Maybe I fidget a lot.
    Well, I weighed and logged everything meticulously, so it should be pretty accurate. I was happy it came out so close because that means my metabolism is back to "normal". About a year ago I had it measured at a fitness place and it was really low. :smile:
  • cwolfman13
    cwolfman13 Posts: 41,865 Member
    MFP isn't a TDEE calculator.

    On a TDEE calculator I'm somewhere between light active to moderate...with MFP I have to set it to active to make up the difference in exercise to arrive at the correct number.
  • Lea_8D
    Lea_8D Posts: 106 Member
    MFP isn't a TDEE calculator.

    On a TDEE calculator I'm somewhere between light active to moderate...with MFP I have to set it to active to make up the difference in exercise to arrive at the correct number.

    We are talking about back-calculating your "real" TDEE based on your MFP log (total calories consumed=C) and how much weight you've lost (3500 cals/pound X # pounds lost = total calorie deficit=D) over a certain number of days (d). So (C+D)/d = your TDEE.

    Obviously you have to accurately log all calories consumed for this to work, and if you change your activity level it will change your TDEE-- that's the next thing I am going to do is increase my activity level.

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