Help determining final gravity

[zinn]

I brewed my first batch of beer in the Anvil Foundry. I forgot to check the original gravity before transferring to the fermenter (it was 2:00am, I was tired!).

I'm using SafAle US-05. It's been fermenting for 4 days now (at about 68 degrees). The bubbling in the air lock seems to have stopped. There's still quite a few bubbles on the top of the beer. I plan to let the beer sit in the fermenter for at least 2 weeks and then I'll take a gravity reading, wait 3 days, and take another one to see if the gravity holds steady. If it does, I assume the beer is ready for bottling.

However, I'm wondering if there's a way to estimate my ABV based on the grain bill since I didn't take an OG reading?

Maris Otter Pale (7.5)
Munich 10 Lovibond (2.1)
CaraHell (0.21)
C-20 (0.315)
C-45 (0.21)
Special B (0.42)
Magnum hops (0.5)
Rice hulls (1.0)
60 ounces of Libby's pumpkin puree (half in mash, half in boil)
Safale US 05 (dry, 11.5 packet)

 

[Golddiggie]

Plug it into pretty much any of the brewing software options out there and it will give you the OG and FG numbers. Since you didn't take an OG reading, you could be off by a bit. BeerSmith gives you the estimated FG, as well as a range for the FG. Such as 1.014 but the range is 1.010-1.018.

 

[BrewnWKopperKat]

I'm wondering if there's a way to estimate my ABV ...

If you have access to a hydrometer and refractometer, this calculator may be of interest: Approximate ABV and Original Gravity from current Brix and Gravity converter (link)

 

[Dgallo]

if you took a preboil gravity reading you could get close but if you didn’t do that, then it’s a crap shoot. There are so many variables for all grain brewing that could affect your og, specifically volume/loss and efficiency of conversation during the mash.

 

[hotbeer]

Why worry. It will have enough ABV. If you don't have a big enough silly smile after drinking the first bottle of it then drink another.