Calculator for DME additions?

[Erik the Anglophile]

I had a misshap during my brew yesterday, and forgot to give the mash a good stir after adding the sparge water and ende up at 1.068 instead of my intended 1.074.
I am getting to the point in my brewing where most of the times I end up pretty much with what I wanted, but I guess things like this will happen at times.
This got me wondering if there are any calculators out there where you can calculate the amont of DME to add to the boil to reach a certain OG given you know the boil volume, pre boil SG and boil off rate?

 

[IslandLizard]

Calculator?
You're 6 points short in v volume (in gallons).
DME gives you 44 (gravity) points per pound per gallon (ppg). So 6/44*v pounds of DME will get you to your OG target.

 

[Erik the Anglophile]

That's true, I can just look on the info on the bag and do a little scienceing.

 

[Surly]

Calculator?
You're 6 points short in v volume (in gallons).
DME gives you 44 (gravity) points per pound per gallon (ppg). So 6/44*v pounds of DME will get you to your OG target.

or use BeerSmith.

 

[Silver_Is_Money]

A combination of these two spreadsheet based calculators may perhaps fill the requirement here:

https://www.homebrewtalk.com/thread...-malts-grains-dme-and-lme.687738/post-9023435
https://www.homebrewtalk.com/thread...-efficiency-volume-and-og.687452/post-9062927
For the first of these, enter your volume in the first cell, and your need for 0.0006 points of specific gravity gain as 1.0006 entered into the second cell.