The size of your pillow and the total yardage will be individual, depending on the yarn used, on the number of tiers worked and your individual gauge.

I recommend use cotton y arn 50 g/1.76 oz = 120 175 m / 131 191 yds and hook 2 2.5 mm.

Yardage for green pillow ( Alpina «Lily» in 50 g = 175 m/191 yds): 300 g dark green and 100 g light green, 3 tiers + back side, size approx 43 x 43 cm

Yardage for burgundy pillow assembled fro m 4 squares (Alpina «Anabel» in 50 g = 120 m/131 yds): 300 g burgundy and 150g light pink, size approx 41 x 41 cm.

The thinner the yarn the more tiers you need to work to make the product about 40 50 cm/16 20 inches, and vice versa the thicker the yarn, the fewer tiers you need to work to get a similar size product.