Electric Brewing Supply 30A BCS Giveaway!

Home Brew Forums > Wine, Mead, Cider, Sake & Soda > Wine Making Forum > Gravity math
LinkBack Thread Tools
Old 01-23-2008, 10:41 PM   #1
Feedback Score: 0 reviews
Join Date: Jan 2005
Location: Liberty, Texas
Posts: 647
Liked 3 Times on 3 Posts
Likes Given: 6

Default Gravity math

Is there a calculator or formula that I can follow when figuring wine gravity? Sometimes I check my must at 5gal and its off, so I have to add sugar or water but I am not sure how much? Next time I want to check my gravity at 4gal, so that when I have 5.5gal I am at my desired gravity. How do most of you handle this?

Dark_Ale is offline
Reply With Quote Quick reply to this message
Old 01-23-2008, 11:16 PM   #2
Feedback Score: 0 reviews
LS_Grimmy's Avatar
Join Date: Nov 2006
Location: Cold Lake , Alberta
Posts: 297
Liked 3 Times on 1 Posts


I follow this calculation I got from another site:

.08lbs/gallon will raise the gravity by .004 if you're using specific gravity. So for 5 gallons I would go 0.8lbs x 5 to increase gravity by .004

Hope this helps,

LS Grimmy

My Web Site:

LS_Grimmy is offline
Reply With Quote Quick reply to this message
Old 01-24-2008, 01:21 AM   #3
Ale's What Cures You!
Feedback Score: 0 reviews
Yooper's Avatar
Join Date: Jun 2006
Location: Upper Michigan
Posts: 61,645
Liked 4629 Times on 3361 Posts
Likes Given: 909


I downloaded a program (free) called winecalc. It works pretty well to add sugar/water to get an sg, or to convert gallons to ml (when I go to bottle, I'm too stupid to figure out how many 750 ml bottles I need for 4 gallons).

Broken Leg Brewery
Giving beer a leg to stand on since 2006
Yooper is offline
Reply With Quote Quick reply to this message

Quick Reply
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
OG -> FG = ABV Math sAvAgE General Beer Discussion 21 12-04-2009 05:46 AM
Math Help Please! Brewpastor General Techniques 11 09-20-2006 06:41 PM
Need Statistic/Math Help TxBrew General Chit Chat 18 01-08-2006 08:33 AM
Math. Orfy General Techniques 8 12-07-2005 03:06 AM