Adjusted gravity

[Bombers hoppy ending]

Hi guys. Just started my MJ Juicy IPA.
Made a small error and only made it up to 20.5lts took a gravity and pitched the yeast. Then realised I’d short brewed it so immediately added another 2lts of bottled water. Obviously couldn’t then recheck the OG.
I’m not worried about the beer as I’d only just pitched the yeast moments previous. However I wonder how the extra 2lts will effect the OG. Here is what I had.
20.5lts SG 1.051, then added 2lts of water.
Now have 22.5lts.
Are there calculations you can do to give an adjusted SG.
many thanks guys.

 

[Redwulf]

Dilution And Boiloff Gravity Calculator - Brewer's Friend

It should be 1.046 based on what you've said.

 

[Bombers hoppy ending]

That was very quick Redwulf. Many thanks. I suspected there would be a calculator somewhere.

 

[Bombers hoppy ending]

Just glad I noticed as I put the FV in the fermentation fridge.

 

[Redwulf]

Just glad I noticed as I put the FV in the fermentation fridge.

You'd have been fine, it would have ended up about 5.3 instead of 4.8, if I remember rightly it wasn't terribly bitter when I did it so it would have been perfectly drinkable...

 

[Bombers hoppy ending]

Looking forward to this one as it gets good reviews.