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  1. #1
    Registered User freedomworkshop's Avatar
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    Question Help me solve a Math Problem? For Macros.

    I just made my bodybuilding first meal, that I am going to upload to my blog.

    It's called Gourmet Noodles!

    I have worked out that the 712 Calorie meal has:


    34.3g Protein
    34.4g Fat
    62.7g Carb

    Now, I can see clearly, just using some basic logic at a glance -- it is very roughly:

    Just under 1/4 Protein
    Just under 1/4 Fat
    Just over 1/3 carbs

    However, I need to know how to work out the exact numbers, like WITH MATHS.

    I don't now how to do it, because I'm basically math-stupid.

    I'm a complete mathi-ing idiot.

    I intend to upload a whole HEAP of meals along with the percentages. So I need to know the formula for how I work this out.

    Please take it easy, as I will have trouble following if you use technical math terms.

    However, if you explain it like I am 4, I should be able to eventually get my head around that 1 formula (with the use of a calculator) and be able to figure out all the other meals
    Last edited by freedomworkshop; 12-21-2018 at 07:40 PM.
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  2. #2
    Crawling back under rock OldFartTom's Avatar
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    Then sir, you are a true athlete... coz athletes don't do math so good.

    Just make sure percentages add up to 110% (any less is for quitters) and all will be good

    Amount of thing/the total amount *100 = the % of thing

    Example
    27g protein in something that weighs 225 g
    27/220 then times that answer by 100
    27/220*100= 12.3%

    Pretty sure you don't need to know percentages to add up macros! But for your entertainment... there you go.
    Last edited by OldFartTom; 12-22-2018 at 12:33 AM.
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  3. #3
    Registered User freedomworkshop's Avatar
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    You totally lost me man. This is just a short message on my phone because I am about to board a plane. I'll come back later.
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  4. #4
    Registered User freedomworkshop's Avatar
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    Ok I got it. You're having a lend of me because none of that makes any sense.
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  5. #5
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    Before you start calculating...remember that the caloric value assigned to any food is not going to be exact, so trying to pin down precise percentages will likely be futile.

    It is generally accepted to use net values of 4, 4 & 9 calories per gram for protein, carbs & fats, but those aren't exact numbers as more or less energy can be lost during the digestive process, depending on the type of food being digested and the person digesting it.

    But to answer your question...

    34.3g Protein = ~137 calories (~20%)
    34.4g Fat = ~309 calories (~44%)
    62.7g Carb = ~250 calories (~36%)

    Total calories = ~696 calories (100%)
    Last edited by 401Delta; 12-22-2018 at 02:02 AM.
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    Crawling back under rock OldFartTom's Avatar
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    Originally Posted by freedomworkshop View Post
    Ok I got it. You're having a lend of me because none of that makes any sense.
    The first bit and 110% was a joke but the calculation bit was serious, sorry if I explained it badly/unclear
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    Originally Posted by OldFartTom View Post
    The first bit and 110% was a joke but the calculation bit was serious, sorry if I explained it badly/unclear
    I think he's trying to get the percentage of total calories for each macro, not the percentage of total weight.
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    Registered User freedomworkshop's Avatar
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    ok, let's try it another way:

    34.3 + 34.4 + 62.7 = 131.4

    What percentage of 131.4 is 34.3?
    What percentage of 131.4 is 34.4?
    What percentage of 131.4 is 62.7?

    Edit: I am not asking for the answer to this math problem. I am asking for the formula that brings me to the answer.
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    Originally Posted by freedomworkshop View Post
    ok, let's try it another way:

    34.3 + 34.4 + 62.7 = 131.4

    What percentage of 131.4 is 34.3?
    What percentage of 131.4 is 34.4?
    What percentage of 131.4 is 62.7?

    Edit: I am not asking for the answer to this math problem. I am asking for the formula that brings me to the answer.
    Divide the smaller number by the total. Such as: 34.3 / 131.4 = 26.1%
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    Originally Posted by freedomworkshop View Post
    ok, let's try it another way:

    34.3 + 34.4 + 62.7 = 131.4

    What percentage of 131.4 is 34.3?
    What percentage of 131.4 is 34.4?
    What percentage of 131.4 is 62.7?

    Edit: I am not asking for the answer to this math problem. I am asking for the formula that brings me to the answer.
    That’s what oldfarttom explained in his post. 34.3 divided by 131.4, with the answer multiplied by 100, will give you the answer to your first item.

    Rinse and repeat.
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  11. #11
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    Originally Posted by freedomworkshop View Post
    ok, let's try it another way:

    34.3 + 34.4 + 62.7 = 131.4

    What percentage of 131.4 is 34.3?
    What percentage of 131.4 is 34.4?
    What percentage of 131.4 is 62.7?

    Edit: I am not asking for the answer to this math problem. I am asking for the formula that brings me to the answer.
    A couple guys showed you how to calculate those percentages as you asked but the way you presented it, however, is not how it is normally figured. As 401Delta mentioned above the calories for fat macros are different than protein and carbs and that needs to be accounted for or at least that is the normal way it is shown by % of total calories. 401Delta showed the answer but didn't show all the math so here it is:
    34.3g Protein x 4 calories/g = 137.2 calories
    34.4g Fat x 9 calories/g =309.6 calories
    62.7g Carb x 4 calories/g = 250.8 calories

    Total calories = 697.6
    Protein 137.2 / 697.6 = .20 x 100 = 20%
    Fat 309.6 / 697.6 = .44 x 100 = 44%
    Carb 250.8 / 697.6 = .36 x 100 = 36%

    So the fat content is actually 44% but if you did it as you presented and only figure it with the macros the fat would come out to 26% (34.4/131.4 x 100) which is incorrect.
    Last edited by tblodg15; 12-23-2018 at 06:50 PM.
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  12. #12
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    Originally Posted by tblodg15 View Post
    A couple guy showed you how to calculate those percentages as you asked but the way you presented it, however, is not how it is normally figured. As 401Delta mentioned above the calories for fat macros are different than protein and carbs and that needs to be accounted for at at least that is the normal way it is shown by % of total calories. 401Delta showed the answer but didn't show all the math so here it is:
    34.3g Protein x 4 calories/g = 137.2 calories
    34.4g Fat x 9 calories/g =309.6 calories
    62.7g Carb x 4 calories/g = 250.8 calories

    Total calories = 697.6
    Protein 137.2 / 697.6 = .20 x 100 = 20%
    Fat 309.6 / 697.6 = .44 x 100 = 44%
    Carb 250.8 / 697.6 = .36 x 100 = 36%

    So the fat content is actually 44% but if you did it as you presented and only figure it with the macros the fat would come out to 26% (34.4/131.4 x 100) which is incorrect.
    Thank you for clarifying that. My answer was too general.
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  13. #13
    Registered User freedomworkshop's Avatar
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    Oh ok. I can understand and duplicate that. Thanks. Yeah,without the math, I could see the percentages were off, so I thought he was trippin' lol. But I got it now. Thanks 😎
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