Land Owner's Reference
"A deer that weighs 60 pounds field dressed would have had a live weight of about 80 pounds. Other conversions from field-dressed weight to live weight are:
Weight
Field / Live
60/80
70/90
80/100
90/115
100/130
110/140
120/155
130/170
140/180
150/190
160/205 "Multiply the field-dressed weight by 0.65 to calculate how much meat you will get from a deer. With this formula, you can estimate that a 120 pound field-dressed carcass will yield 78 pounds of meat."