Each of the 6 cookies makes about 1/4 c. of crumbs so depending on what size crust you are making,
you will use 5
cookies for an 8 inch or 6 cookies for a 9 inch crust.
If you make an 8 inch crust then you get a free cookie to eat
while you are making the crust

.
In a small mixing bowl combined 1/4 c. of melted butter with the crumbs from 5 cookies (approx. 1 1/4 c.)
for
a 8 inch crust or 1/3 c. of melted butter with the crumbs from 6 cookies (approx. 1 1/2 c.) for a 9 inch crust.
In my
opinion the crumbs at this point were sweet enough but you might want to test to see if it suits the sweetness of what you
are making and adjust to taste.
Press mixture firmly against bottom and side of pie plate.
Bake in a 350 oven 10
to 12 min.
A Nabisco double square graham cracker is 20 carbs.
To make an 8 inch crust takes 8 double square graham
cracker or 160 carbs.
To make a 9 inch crust takes 10 double square graham cracker or 200 carbs.
My Low-carb version
is 8 carbs for an 8 inch crust or 10 carbs for a 9 in crust.