The AeroPress scoop holds about 36cc, versus 30cc in a standard 2TB coffee measure.
I have been grinding and using 2 AeroPress scoops for about 10 oz. of coffee = 1 scoop per 5 oz. coffee = 0.20 AP scoop per 1 oz. coffee.
Last night, because we had several guests, I used the drip coffeemaker. I used 6 coffee measures of beans (= 5 AeroPress scoops), and ground the beans for drip grind (versus the finer grind I use for the AeroPress), and added water for 9 cups (= 45 oz.), which equals 5 AeroPress scoops for 45 oz. coffee = 1 AP scoop per 9 oz. coffee. It tasted pretty good.
This is just slightly over half (i.e., 55%) as much coffee per brewed cup, i.e., 0.11 AP scoop per 1 oz. coffee.
I'll have to make a 9 oz. AP cup using just one AP scoop to see how it tastes. Maybe I've been making my coffee too strong.