You'd have to weigh them or count the slices in a pound and use 1/4 of them.

Regular-sliced bacon is .062 inches thick (1/16 inch)

with 16 - 20 slices per pound

Thin-sliced bacon is .031 inches thick (1/32 inch) with

28 - 32 slices per pound

Thick-sliced bacon is .111 inches thick (1/8 inch) with

10 - 14 slices per pound

https://www.porkretail.org/filelibrary/Retail/BaconTrends.pdf