90 tiles.
l2 math.
150 16x16" tiles; you'll have a small part of one tile left over.
The answer depends on the measurement units used for 16x16. The answer also depends on the shape of the 390 sq ft area to be covered because the more irregular the shape, the greater the number of pavers you will need to cut. That is likely to result in some breakage. Furthermore, you may not want to use all the offcuts since that will make part of the area into a mosaic.
56 16x16" tiles are needed.
You would need 81 16x16 pavers to cover a 36 square foot area. Each 16x16 paver covers an area of 1.78 square feet, so dividing 36 by 1.78 gives you 20.22 pavers. Since you can't have a fraction of a paver, you would round up to the nearest whole number, which is 81.
31 Get 35 for breakage.
78.47 Pavers
16x16 square feet = 256 square feet, so two tiles will suffice.
You would need 320 pavers to cover 160 square feet with 6x9 pavers, assuming each paver covers 0.5 square feet.
297 16x16-inch tiles.
144.63 pavers
16 inch x 16 inch = 16x16/144 = 1.777777.... sq.ft. 450/1.777777..... = 253.125 tiles (not counting any wastage caused by cutting, breakage, etc) = 254 tiles minimum.
141
.375
The patio is 10x 12 = 120 sq ft or 17,280 sq in The pavers are 16x16 = 256 sq in So you need 17280/256 = 68 pavers
4.5 pavers will cover 1 sq foot. So 4.5 x 360 =1620 pavers