SUMPRODUCT across multiple sheets

**excelnoob007** · 01-21-2011, 07:38 AM

In a workbook, I have a sheet called Start and another called Stop, and a variable number of sheet between them. The structure of all sheets is the same.

I want to achieve this:
SUMPRODUCT(Start:Stop!Q8,Start:Stop!Q34)
(if it worked, that is)

But this doesn't work. Please help!

**DonkeyOte** · 01-21-2011, 07:42 AM

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**TMS** · 01-21-2011, 07:44 AM

I don't think you need SUMPRODUCT if it's just a 3-D SUM.

Try:

=SUM(Start:Stop!Q8:Q34)

Regards

**excelnoob007** · 01-21-2011, 08:06 AM

Also posted at
http://www.mrexcel.com/forum/showthread.php?t=522894
http://excelusergroup.org/forums/t/2503.aspx
http://www.eggheadcafe.com/community...le-sheets.aspx

Still not solved

**excelnoob007** · 01-21-2011, 08:09 AM

Originally Posted by TMShucks

I don't think you need SUMPRODUCT if it's just a 3-D SUM.

Try:
=SUM(Start:Stop!Q8:Q34)

Sorry, if I wasn't clear. I'm after sumproduct. Something like this:

= Start!Q8*Start!Q34 + Sheet2!Q8*Sheet2!Q34 + Sheet3!Q8*Sheet3!Q34 +...Stop!Q8*Stop!Q34

**TMS** · 01-21-2011, 08:37 AM

Best I can suggest, in the absence of a more aesthetically pleasing solution, is to use a helper cell on each worksheet, say Q1. Then use the 3-D sum as previously suggested; in this case:

=SUM(Start:Stop!Q1)

The helper cell could have a white font colour so it's not obvious it's there.

Regards

**TMS** · 01-21-2011, 08:43 AM

Sorry, I should have said, the helper cell would have the formula: =Q8*Q34

Regards

**JBeaucaire** · 01-21-2011, 09:48 AM

The START/STOP trick isn't going to help you on this one. The easiest way to do this is to list the sheet names you want to sum3d in a range somewhere. I've done it in H1:H3 of the current sheet. Then this formula will do it:

=SUMPRODUCT(N(INDIRECT("'"&$H$1:$H$3&"'!Q8")), N(INDIRECT("'"&$H$1:$H$3&"'!Q34")))

You could also list the sheetnames elsewhere in named ranges, perhaps calling it MySheets, then the formula would look like:
=SUMPRODUCT(N(INDIRECT("'"&MySheets&"'!Q8")), N(INDIRECT("'"&MySheets&"'!Q34")))

**BG23** · 07-17-2015, 05:32 AM

Thanks JBeaucaire, very clever.

In my sheets columns B and C have Qty and UnitPrice. My summary sheet has the total Qty in B3, and I have used your method in C3 to find the average Unit Price for the year:

=SUMPRODUCT(N(INDIRECT("'"&Months&"'!B3")), N(INDIRECT("'"&Months&"'!C3")))/B3

My next problem is how to replicate this formula down column C for all products. When dragged the row number does not increment - how do I do that?

**TMS** · 07-17-2015, 05:51 AM

@BG23: Welcome to the forum.

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