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April 01, 2019

How to Calculate Homebrew ABV

 What's the ABV%?  How much alcohol is in my homebrew? How can I increase the alcohol content of my batch?

These are common questions and the easiest way to answer them is with your triple-scale hydrometer.  From your readings, OG-FG * 131 = ABV.  If you don't like math, check out the chart for an estimated alcohol by volume.

 Percent Alcohol by Volume (ABV) From Original and Final Gravity

 

1.030

1.035

1.040

1.045

1.050

1.055

1.060

1.065

1.070

1.075

0.998

4.1

4.8

5.4

6.1

6.8

7.4

8.1

8.7

9.4

10.1

1.000

3.9

4.5

5.2

5.8

6.5

7.1

7.8

8.5

9.1

9.8

1.002

3.6

4.2

4.9

5.6

6.2

6.9

7.5

8.2

8.9

9.5

1.004

3.3

4.0

4.6

5.3

5.9

6.6

7.3

7.9

8.6

9.3

1.006

3.1

3.7

4.4

5.0

5.7

6.3

7.0

7.7

8.3

9.0

1.008

2.8

3.5

4.1

4.8

5.4

6.1

6.7

7.4

8.0

8.7

1.010

2.6

3.2

3.8

4.5

5.1

5.8

6.5

7.1

7.8

8.4

1.012

2.3

2.9

3.6

4.2

4.9

5.5

6.2

6.8

7.5

8.2

1.014

2.0

2.7

3.3

4.0

4.6

5.3

5.9

6.6

7.2

7.9

1.016

1.8

2.4

3.1

3.7

4.4

5.0

5.7

6.3

7.0

7.6

1.018

1.5

2.2

2.8

3.4

4.1

4.7

5.4

6.0

6.7

7.3

1.020

1.3

1.9

2.5

3.2

3.8

4.5

5.1

5.8

6.4

7.1

1.022

1.0

1.6

2.3

2.9

3.6

4.2

4.9

5.5

6.2

6.8

1.024

0.8

1.4

2.0

2.7

3.3

4.0

4.6

5.2

5.9

6.5

Source: howtobrew.com