Note that this is base grain as in two row, specialty grains usually have less yield and are used in small amounts compared to the base. The darker the malt the less the yield. No conversion for specialty grains is specified here.
This document is intended to be quick and dirty but there are very detailed articles on the web that explain things like malt extract to all grain conversion.
Most of us who are concerned with extract conversions are extract brewers, so here's a couple of examples:
Recipe calls for 18 pounds of LME but we have DME:
(18 lb. LME) x (.86) = 15.5lb DME
Recipe calls for 14 pounds of DME but we have LME:
(14 lb. DME) x (1.17) = 16.4lb LME (round to 16.5)
* LME = Liquid Malt Extract
* DME = Dry Malt Extract
* Grain - Most base grain such as two row or Maris Otter
Prepared by Rick Reineman based on a variety of published information.