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Oh I don't think that's really how it works, even for Minis.
There is a growth chart at: http://goldendoodles.com/care/growth_chart.htm
And the general estimate (also mentioned on that page) is to take the pup's weight at 4 months, multiply x 2, and add up to 10 pounds. For minis - it's more like add 5 pounds at most.