I forgot to take my OG

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lroog

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But my final is 1.022. Any way to guess what the ABV might be?
 
You can estimate the OG based on the ingredients used. Just enter them into any of the popular recipe calculators/spreadsheets.

Once you have the OG, you can use the numerous, online ABV calculators to figure out the ABV.

Or, just use this equation:

og-fg X 131
 
That worked pretty good, thanks for the tip.

I came up with 1.060 - 1.055, so I am somewhere in the 4.5 to 5% range.
 
You could also use a refractometer and figure out the OF by the refract reading compared to the hydro reading.
 
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