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Math Help - [SOLVED] Conversions----- acres hectare tonnes and tons...

  1. #1
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    [SOLVED] Conversions----- acres hectare tonnes and tons...

    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
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    Opalg's Avatar
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    Quote Originally Posted by ejcate View Post
    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 The units here are not tons per acre, but just tons (you have already multiplied by the acreage).
    I then multiplied 898.34 by 2.471 and divided the answer by 1.102 to get 2014.33 t/ha So you should not multiply by 2.471. Just divide by 1.102 to get the answer in metric tons (not 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. Again, this is metric tons, not t/ha.
    I then multiplied 815.19 by 1.102 and divided the answer by 2.471 to get 363.55 T/ac. So you should not divide by 2.471.


    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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  3. #3
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    Great thank you!!!!
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