# [SOLVED] conversions

• Jan 21st 2009, 11:58 AM
ejcate
[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
• Jan 21st 2009, 12:13 PM
mjjoga
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!
• Jan 21st 2009, 12:35 PM
ejcate
conversion factors
1 hectare = 2.471 acres
1 metric ton = 1.102 US tons
• Jan 21st 2009, 12:37 PM
ejcate
T/ac = US tons per acre
t/ha = metric tonnes per hectare