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Update query is not performing a multiplication

I need to calculate the cubic feet for a box and I'm updating my table of items.

tblmasteritem.Pallet_Cube = (([investiga.Pallet_Length]*[investiga.Pallet_Width]*[investiga.Pallet_Height])*0.000578703704)

Whenever I run this query isntead of geting the Cubic Feet I get the cubic inches
It seems that either my formula is wrong or I'm doing something inclorrectly
UPDATE tblmasteritem RIGHT JOIN investiga ON tblmasteritem.Code = investiga.Code 
SET 
tblmasteritem.Length = [Box_Outside_Length], 
tblmasteritem.Width = [Box_Outside_Width], 
tblmasteritem.Height = [Box_Outside_Height], 
tblmasteritem.Weight = [Weight_per_Box], 
tblmasteritem.Cubic_Vol = [Cubic_Vol_per_box], 
tblmasteritem.Pallet_Length = [investiga.Pallet_Length], 
tblmasteritem.Pallet_Width = [investiga.Pallet_Width], 
tblmasteritem.Pallet_Height = [investiga.Pallet_Height], 
tblmasteritem.Pallet_Cube = (([investiga.Pallet_Length]*[investiga.Pallet_Width]*[investiga.Pallet_Height])*0.000578703704), tblmasteritem.HoraActualiza = Now();

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TOPIO
Asked:
TOPIO
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1 Solution
 
omgangCommented:
what units are the length, width and height in?
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TOPIOAuthor Commented:
inches.
And according Mr Google
1 cubic inches = 0.000578703704 cubic feet
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Rey Obrero (Capricorn1)Commented:
that is correct  ~ approximately

the values are in inches  12"

12 * 12 * 12 * 0.000578703704  = 1.000000000512  cubic ft
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omgangCommented:
The math looks correct to me.  12 in. x 12 in. x 12 in. x 0.000578703704 = 1 cu. ft.

If the units for length, width and height were actually in feet instead of inches you would be getting the result you are seeing
12 ft. x 12 ft. x 12 ft. x 0.000578703704 = 1278

I don't see anything wrong with the query either.
OM Gang
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TOPIOAuthor Commented:
Therein lies the question dear om gang the query is correct the formula is correct so why in the name of the frosted miniwheats is this not working?

Any ideas?
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omgangCommented:
Not to insult but are you sure the units in table investiga are inches?  For a pallet I would imagine values such as
length = 48
width = 42
height = 48

OM Gang
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OnALearningCurveCommented:
TOPIO,

Can you post some example values you are putting in and getting out as a result?

for example:

l=12, h=48, w=12, Result=###

Cheers,

Mark.
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GRayLCommented:
As you are using Property names (Length, Width, Height)  for field names, you may get some cross talk.  If you can try using the same Name as the source - [Box_Outside_Length] in lieu of Length
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GRayLCommented:
Thanks, glad to help.
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