Beer Forum

This may seem like a baisc question, but after reading the manual to my new refractometer I don't know how to use the Brix% number I get. How does it translate to gravity. Any help would be get thanks

This is kinda a fucked up answer but deal with it...
It depends, The refractometer is only accurate PRE FERMENTATION.
Brix is approx 4x SG so 1 brix is 1.004 sg... there are a million online calculators that will give you technicly better results tho... I thing online-conversion.com may even have it.
BUB

Bub is on the right track. The actual conversion is some bizarre formula best left to the calculators in your brewing software. At the practical level, when you need a quick check on your gravity, such as during your boil, just multiply your brix by 4. For example if towards the end of your boil you measure 15 brix, your gravity is about 1.060. Anyway it is plenty close enough for what we do.

Wayne
Bugeater Brewing Company

If your using brewing software like Beersmith or Promash, they have a brix to SG converter. They also can calculate the FG using the refractometer.

Thanks alot for all the help.

BYO Had an article on this (including Plato...they say that the calculation will work for Brix as well)
http://byo.com/mrwizard/730.html

1 degree Brix = .004 SG (There by, 0 Brix = 1.000)

Specific Gravity Brix
0.990 0.00
0.991 0.00
0.992 0.00
0.993 0.00
0.994 0.00
0.995 0.00
0.996 0.00
0.997 0.00
0.998 0.00
0.999 0.00
1.000 0.00
1.001 0.26
1.002 0.51
1.003 0.77
1.004 1.03
1.005 1.28
1.006 1.54
1.007 1.80
1.008 2.05
1.009 2.31
1.010 2.56
1.011 2.81
1.012 3.07
1.013 3.32
1.014 3.57
1.015 3.82
1.016 4.08
1.017 4.33
1.018 4.58
1.019 4.83
1.020 5.08
1.021 5.33
1.022 5.57
1.023 5.82
1.024 6.07
1.025 6.32
1.026 6.57
1.027 6.81
1.028 7.06
1.029 7.30
1.030 7.55
1.031 7.80
1.032 8.04
1.033 8.28
1.034 8.53
1.035 8.77
1.036 9.01
1.037 9.26
1.038 9.50
1.039 9.74
1.040 9.98
1.041 10.22
1.042 10.46
1.043 10.70
1.044 10.94
1.045 11.18
1.046 11.42
1.047 11.66
1.048 11.90
1.049 12.14
1.050 12.37
1.051 12.61
1.052 12.85
1.053 13.08
1.054 13.32
1.055 13.55
1.056 13.79
1.057 14.02
1.058 14.26
1.059 14.49
1.060 14.72
1.061 14.96
1.062 15.19
1.063 15.42
1.064 15.65
1.065 15.88
1.066 16.11
1.067 16.34
1.068 16.57
1.069 16.80
1.070 17.03
1.071 17.26
1.072 17.49
1.073 17.72
1.074 17.95
1.075 18.18
1.076 18.40
1.077 18.63
1.078 18.86
1.079 19.08
1.080 19.31
1.081 19.53
1.082 19.76
1.083 19.98
1.084 20.21
1.085 20.43
1.086 20.65
1.087 20.88
1.088 21.10
1.089 21.32
1.090 21.54
1.091 21.77
1.092 21.99
1.093 22.21
1.094 22.43
1.095 22.65
1.096 22.87
1.097 23.09
1.098 23.31
1.099 23.53
1.100 23.75
1.101 23.96
1.102 24.18
1.103 24.40
1.104 24.62
1.105 24.83
1.106 25.05
1.107 25.27
1.108 25.48
1.109 25.70
1.110 25.91
1.111 26.13
1.112 26.34
1.113 26.56
1.114 26.77
1.115 26.98
1.116 27.20
1.117 27.41
1.118 27.62
1.119 27.83
1.120 28.05
1.121 28.26
1.122 28.47
1.123 28.68
1.124 28.89
1.125 29.10
1.126 29.31
1.127 29.52
1.128 29.73
1.129 29.94
1.130 30.15

Consumes, that had to take some time to type out. Tell me that you just cut and pasted it.