carniebrew
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BU:GU is the measure of a beer's "balance". It compares the alcohol content of the beer (Gravity Units) with the bitterness (Bitterness Units). To get the BU:GU ratio, divide the last two digits of the OG by the IBU's.
Pale Ale's usually have a BU:GU of around 75%, or 0.75. Meaning the BU's are 75% of the original gravity of the beer, for example 37.5 IBU for a beer with an original gravity of 1.050.
IPA's are more like 100%, e.g. a 1.060 OG with 60 IBU.
Hefeweizen's on the other hand are around 30%, e.g. 1050 with 15 IBU
Very basically, if you like your beer more bitter/hoppy, go for a higher BU:GU. If you prefer them more malty, go lower. The red dot on Ian's graph in the spreadsheet shows where you're at with the ratio.
As for BV and Calculated IBU, I must admit I don't know, I never paid any attention to those fields when using the spreadsheet. Hopefully someone else can answer that.
EDIT: Here we go, Ian answers the question about Calculated IBU in this post: http://aussiehomebrewer.com/topic/29655-kit-and-extract-beer-spreadsheet/?view=findpost&p=741485. But unfortunately the website that post links to seems dead.
Pale Ale's usually have a BU:GU of around 75%, or 0.75. Meaning the BU's are 75% of the original gravity of the beer, for example 37.5 IBU for a beer with an original gravity of 1.050.
IPA's are more like 100%, e.g. a 1.060 OG with 60 IBU.
Hefeweizen's on the other hand are around 30%, e.g. 1050 with 15 IBU
Very basically, if you like your beer more bitter/hoppy, go for a higher BU:GU. If you prefer them more malty, go lower. The red dot on Ian's graph in the spreadsheet shows where you're at with the ratio.
As for BV and Calculated IBU, I must admit I don't know, I never paid any attention to those fields when using the spreadsheet. Hopefully someone else can answer that.
EDIT: Here we go, Ian answers the question about Calculated IBU in this post: http://aussiehomebrewer.com/topic/29655-kit-and-extract-beer-spreadsheet/?view=findpost&p=741485. But unfortunately the website that post links to seems dead.