Converting fresh mushroom recipes to using dried mushrooms is pretty easy.  It takes an average of 9lbs of fresh mushrooms to make a pound of high quality dried mushrooms, so all you need is some very basic math:

If your recipe specifies a number of pounds, use this equation:
(# lbs. of Fresh Mushrooms x 16) ÷ 9 = # ozs. Dried Mushrooms

If your recipe asks for ounces, use this equation:
# ozs. Fresh Mushrooms ÷ 9 = # ozs. Dried Mushrooms

If your recipe asks for cups, use this equation:
(# cps. of Fresh Mushrooms x 3) ÷ 9 = Estimate # ozs. of Dried Mushrooms
(Each cup of fresh mushrooms weighs between 2.5 and 3.5 ounces. The above equation uses 3 as an average. Feel free to adjust up or down to suit recipe.)

Dried wild mushrooms are a great way to enjoy mushroom varieties anytime that may only be available fresh for a month each year.  And of course, they’re also significantly lighter without all that water weight, so they’re cheaper to ship, and reconstituting dried mushrooms is really easy.  They’re also non-perishable, so they won’t take up fridge space and they’ll stay good for over a year in an airtight container in a cupboard.