SRM Calculator

 Name:  Style:

 Original Gravity (O.G.):  SRM Total:  Final Volume (gallons):

 Efficiency: % (Generally 65-80%, however 68% is recommended as a starting point)

 Note: Do not enter GUi or SRM numbers below. They will be automatically calculated and displayed after you press the "Perform Calculations" button. The GUi and SRM calculations will be based upon your choice of malt(s).

 Malt 1 Type:

 % of Grist:

 GUi1:

 SRM1:
 Malt 2 Type:

 % of Grist:

 GUi2:

 SRM2:
 Malt 3 Type:

 % of Grist:

 GUi3:

 SRM3:
 Malt 4 Type:

 % of Grist:

 GUi4:

 SRM4:
 Malt 5 Type:

 % of Grist:

 GUi5:

 SRM5:
 Malt 6 Type:

 % of Grist:

 GUi6:

 SRM6:
 Malt 7 Type:

 % of Grist:

 GUi7:

 SRM7:
 Malt 8 Type:

 % of Grist:

 GUi8:

 SRM8:

 

    

 1. Determine the Total Gravity Units for the batch (GUtotal). GUtotal = ((OG-1)*1000)*VOLend
 GUtotal =

 2. Determine the GU from each malt source.
 GU = % Grist * GUtotal
 GU1 = %  *  =
 GU2 = %  *  =
 GU3 = %  *  =
 GU4 = %  *  =
 GU5 = %  *  =
 GU6 = %  *  =
 GU7 = %  *  =
 GU8 = %  *  =

 3. Determine the pounds of each malt source.
 Pounds GU / GUi / Efficiency
 #'s1:

 /
  

 /
  

 =
    lbs.
 #'s2:

 /
  

 /
  

 =
    lbs.
 #'s3:

 /
  

 /
  

 =
    lbs.
 #'s4:

 /
  

 /
  

 =
    lbs.
 #'s5:

 /
  

 /
  

 =
    lbs.
 #'s6:

 /
  

 /
  

 =
    lbs.
 #'s7:

 /
  

 /
  

 =
    lbs.
 #'s8:

 /
  

 /
  

 =
    lbs.

 4. Determine SRM.
 SRMtotal = SRM1 + SRM2 + SRM3 + SRM4 + SRM5 + SRM6 + SRM7 + SRM8
 SRM1=SRMi1*#'s/VOLend =  

* 
  

 /
  

 =
  
 SRM2=SRMi2*#'s/VOLend =  

* 
  

 /
  

 =
  
 SRM3=SRMi3*#'s/VOLend =  

* 
  

 /
  

 =
  
 SRM4=SRMi4*#'s/VOLend =  

* 
  

 /
  

 =
  
 SRM5=SRMi5*#'s/VOLend =  

* 
  

 /
  

 =
  
 SRM6=SRMi6*#'s/VOLend =  

* 
  

 /
  

 =
  
 SRM7=SRMi7*#'s/VOLend =  

* 
  

 /
  

 =
  
 SRM8=SRMi8*#'s/VOLend =  

* 
  

 /
  

 =
  

 SRM Total =

 LEGAL STUFF: Please note that all steps have been taken to insure accuracy. However, the authors of this calculator make no guarantees as to its accuracy and assume no responsibility for its use. Use at your own risk.