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Math Help - [SOLVED] conversions

  1. #1
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    [SOLVED] conversions

    Hello-

    I have a value of 15.38 metric tons per hectare.

    I converted this to US tons per acre by multiplying 15.38 by 1.102 and dividing the answer by 2.471..... the result was 6.86 US tons per acre.

    I then did an exercise to check my conversions....

    I started with 131 Acres and wanted to calc the T/ac and t/ha.

    SO
    I multiplied 131 by 6.86 and got 898.34 T/ac
    I then multiplied 898.34 by 2.471 and divided the answer by 1.102 to get 2014.33 t/ha

    I wanted to check this result versus if I had started the problem with hectares.

    so I converted the original 131 acres to hectares by dividing it by 2.471 to get 53.01.
    I then multiplied this 53.01 by 15.38 and got 815.19 t/ha.
    I then multiplied 815.19 by 1.102 and divided the answer by 2.471 to get 363.55 T/ac.


    Why are the results different?
    What am I doing wrong?
    Shouldn't the results from the different methods be the same?

    Thanks
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  2. #2
    Newbie mjjoga's Avatar
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    in the usa baby! pennsylvania is really really cold: negative wind chill? gotta be kidding me!
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    the results should be the same going forwards or backwards. I personally don't know the conversion factors of tons, metric tons, and hectares and acres so i can't really check your work, unless you tag them up so i can see them. good luck!
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  3. #3
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    conversion factors

    1 hectare = 2.471 acres
    1 metric ton = 1.102 US tons
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  4. #4
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    T/ac = US tons per acre
    t/ha = metric tonnes per hectare
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